Note : Les descriptions sont présentées dans la langue officielle dans laquelle elles ont été soumises.
CA 02574443 2007-01-09
FIELD OP T$E INVENTION
[000I] The present invention relates to liquid del,ti.very systems for
supplying liquid from a portable container, and more parLicularly to
liquid deli.very systems for supplying liquid from a portable container and
removing vapour from at least one selected remote destination.
[0002] This application c.la.i.ms the benefit of the filed United States
Provisional Patent Application No. 60/757,227, erititled Two Line Hose
vapor. Recovery System, which is here by incorporated by reference.
BACKGRQtJ,ND OF TgE INVENTION
[0003] It is common to store liquids, such as fuel, in portable
containers for subsequent delivery into another container or the like, at
a remote destination. The remote receptaclc might be the fuel tank of an
apparatus having an external combustion engine, such as a vehicle, a boat,
a lawn mower, and so on, or mS.ght be anothcr independent coritainer.
(0009] Most of suoh portable containers have a rigid nozzle securely
attached thereto at an upper outlet. In order to deli.ver, liquid from the
portable container, the portable container is lifted and tilted, and
liquid is pourcd from the spout into the remote conLainer,.
[0005] Further, a few of such portable containers have ari elonqate
hose attached to the portable container at an outl.pt, with a nozzle and
- 1 -
CA 02574443 2007-01-09
spout attached to the free and of the hose. The spout is placed partially
into the remote container, and liquid is delivered from the portable
container to the remote container, typically by means of siphoning, and
possibly pumping.
100063 One problem that exists with the use of such portable
containers is that vapour from the delivered liquid tends to escape from
the remote destination. In the case of transferring liquid fue],, this is
highly undesirable. 'indeed, it is believed that legislation exists, or
is about to be enacted, in some jurisdictions, to require the recovery of
vapour when deliveririg fuel from a portable container. One such prior art
device that attempts to recover such vapours is described in United States
Patent No. 5,711,355 entitled Portable Liquid Transfer Container and
t7ispensing Nozzle with Non-movable Part e':cee Flow, Vapoui Recovery and
Overfill Prevention System, issued Januax-y 27, 1998, to Kowalczyk. This
Portable Liquid Transfer Container and Dispensing Nozzle comprises a
non-movable part portable liquid transfer container with the dispensing
nozzle, and includes a fillp.i,pe sealing device and internal conduit
positioned in such a manner as =to enable free-flow of liquid and recovery
of vapours displaced during the gravity transfer of liquids to other
containers, as well as automatic shutoff of liquid transfer wheil ttie
receiving container is full to prevent overfill and spillage of liquid_
Unfortunately, this portable liquid transfer container is la.mited to use
where it is raised above the level of the receiving container, and tilted
so that liquid flows frvm the dispensing nozzle into the receiving
container. It cannot be used in a more convenient manner such as wheTe
liquids are siphoned or pumped from one container to another.
- 2 -
4
CA 02574443 2007-01-09
[0007] it is an object of the present invention to prova,de a liquid
delivery system for supplying liquid from a portable container to at least
one selected remote destination and removing vapour from said at least one
selected remote destination, wherein the liquid delivery system is not
].imi.ted to use where it is raised above the level of the rpr:eiving
container, and tilted so that l.iquid flows from the dispensing nozzle into
the receiving container.
[0008] It is another object of the present invention to provide a
liquid delivery system for supplying liquid from a portdble contai.ner to
at least one se.].ec,ted remoLe ciestxnaLiori arid removing vapour from said
at
least one selected remote destination, wherein the liquid delivery system
carti be used in a more convenient manner such as where liquids are pumped
from one container to another_
[0009] It is a further object of the present invention to provide a
liquid delivery system for supplying liquid from a portable container to
at least one selected remote destination and removing vapour from saici at
least one selected remote destination, wherein the liquid delivery system
can be used with or withou'L a pur<ip.
3L7bIl4ARY OF THE INVENTION
[00010] In accordance with one aspect of the present invention there
is disclosed a novel liquid delivery system for supplying liquid fxom a
portable container to at least one selected remote destination and
- 3 -
CA 02574443 2007-01-09
removing vapour from the at l,ea~t one selected remote destination. The
liquid de.l.ivPr_y 9ystem comprises a portable container having a
substantially hollow interior for retaining liquid therein. Y1n elongato
flexible liquid delivery hose has a liquid inlet and a liquid outlet. The
elongate flexible liquid delivery hose is in fluid communication at the
liquid inlet with the substantially hollow interior of the portable
container for receiving liquid from the portable container, and in fluid
communication at the liquid outlet with the at least one selected remote
destination for delivering the received liquid to the at least one
selected remote destination. An elongate flexible vapour recovery hose
has a vapour inlet and a vapour outlet. The elongate flexible vapour
recovery hose is in fluid communication at the vapour inlet with the at
least one selected remote destination for receiving vapour from the at
least one selected remote destination, and in fluid communication at the
vapour outlet with the substantially hollow interior of the portable
container for delivering the received vapour to the substantially hollow
interior of the poz:t'=able uvrlta:irier.. The elongate flexible liquid
delivery
hose and the elongate flexible vapour recovery hose permit the movement
of the liquid outlet of the elongate flexible liquid delivery hose to the
at least one selected remote destination while the container remains
substantially sta.tior,azy, to thereby permit the delivery of the liquid to
the at least one selected remote destination. Reduced air pressure in the
substantially hollow interior of the portable container resulting from the
removal of the liquid from the substantially hollow interior of the
portable container causes vapour to be suctioned via the elongate flexible
vapour recovery hose into the substantially hollow interior of the
portable container.Tn accordance with another aspect of the present
, 4 -
CA 02574443 2007-01-09
invention there is disclosed a novel liquid delivery system for supplying
liquid :Crom a portable container to at least one selected remote
destination and removing vapour from the at least one se],ected remote
destination. '!'he liquid delivery system comprises a portable container
having a substantially hollow interior for retaining liquid therein.
There is a pump means operatively connected to the portable container for
causing the liquid therein to be pumped from the portable container to the
at least one selected remote destination when the pump means is pumped.
An elongate flexible liquid dclivery hose hag a liquid inlet and a liquid
outlet. The elongate flcxible liquid delivery hose is in fluid
communication at the liquid inlet with the pump means for..receiving liquid
from the pump means, and in fluid cozmnunication at the liquid outlet with
the at least one selected remote destination for delivering the received
liquid to the at least one selected remote destiriati.on. An elongate
flexible vapour recovery hose has a vapour inlet and a vapour, outlet. The
el nngat:P f1 axi hl P tiar+ni.ir recnvAry. hore is in. Fluid .t thc
vapour inlet with the at least one selected remote destination for
receiving vapour fr=om the at least one selected remote destination, and
being in fluid communication at the vapour outlet with the substantially
hollow interior of the portable container for delivering the received
vapour, to the substantially hollow interior of the portable container.
The elongate flexible liquid delivery hose and the elongate flexible
vapour recovery hose permit the movement of the liquid outlet of the
elongate flexible 1iqu.id delivery hose to the at least one selected remote
destination while the container remains substantially stationary, to
thereby permit the delivery of the liquid to the at least one selected
remote destination. Reduced air pressure in the Gsubstantially hollow
". ..r7 -
CA 02574443 2007-01-09
interior of the portable container resotting from the removal of the
liquid from the substantially hollow interior of the portable container
causes vapour to be suctioned via the elongate flexible vapour recovery
hose into the subsLantia].ly hollow interior of the portable container.
[00011] Tn accordance with yet another aspect of the present invention
there is disclosed a novel method of supplying liquid from a portable
container to at least one selected remote destination and removing vapour
from tttie at least one selected reniote destination. The itiethod comprising
the steps of supplying liquid to a remote destination via an elongate
flexible liquid delivery hose that is in fluid communication with a
portable container; and suctioning vapour from the remote destination
to ttie portable container through an elongate flexible vapour recovery
hose in fluid communication with the portable container, wherein low air
pressure in the portable container, as caused by the removal of liquid
from the portable container, causes the suctioning of the vapour.
[00012] In accordance with yet another aspect of the present invention
there is disclosed a novel hose assembly for supplying liquid from a
portablc container to at least one selected remote destination and
removing vapour from the aL least one selected remote destination. The
hose assembly comprises an elongate flexible liquid delivery hose having
a liquid inlet and a liquid outlet, and is operatively connectable at the
liquid inlet to be in fluid communication with the interior of a portable
container, for supplying J.i..quid from the portable container to the remote
destination. An elonga-P_e Flexible vapour recovery hose has a vapour inlet
and a vapour outlet, and is operatively connectable at the vapour outleL
- 6 -
CA 02574443 2007-01-09
to be in fluid communication with the interior of a portable Container,
for permitting the flow of vapour from at least one remote destination to
the portable container.
j00013] in accordance with yet another aspect of the present invention
there is disclosed a novel two-channel spout for use with a liquid
delivery system for supplying liquid from a portable container to at least
one selected remote destination and removing vapour from the at least one
selected remote destination. Thc two-channel spout comprises a main body,
a liquid flow channel within the main body, and a vapour flow channel
within the main body. The liquid flow channel and the vapour flow channel
are separate and distinct one from the other.
(00014] zn accQrdance with yet anothcr aspect of the preserit invention
there is disclosed a novel adaptable nozzle for use with a liquid delivery
system for suppl.yinq liquid from a portable container to at least one
selected remote destxriati.on and removing vapour from the at least one
selected remote destination. The adaptable nozzle comprises a a
two-channel spout coupler having an interior end and an exterior end, for
removable and replaceable attachment of a two-channel spout. There is a
nozzle body for housing portions of the two-channel spout coupler, an
elongate flexible liquid delivery hose, and an elongate flexible vapour
recovery hose. The elongate flexible liquid delivery hose and the
elongate flexible vapour recovery hose are each operative.l.y connectable
in fluid communicatxon to the two-channel spout coupler at the interior
end.
- '7 -
CA 02574443 2007-01-09
[00015] Other advantages, features and characterist.ics of the present
invention, as well as ineLhods of operatiotz and funcLions of the related
elements of the structure, and the comb.i.nat.ion of par.ts and economies of
manufacture, will become more apparent upon consideration of the following
detailed descrl.pta,or1 and the appended claims with reference to the
accompanying drawings, the latter of which is briefly described herein
below.
[00016] cther advantages, features and characteristics of the present
invention, as well as methods of operation and funct],ons of the related
elements of the structure, and the combination of parts and economi.es of
manufacture, wi1.l become more apparent upon consideration of the fo7]owing
detailed description and the appended claims with reference to the
accompanying drawings, the latter of which is briefly described herein
below.
SRIEF DESCRIPTION OF THE DRAWINGS
[00017] The novel features which are believed to be characteristic of
the liquid delivery system aceording Lo Lhe present inveti'Lion, as to iLs
structure, organization, use and method of opex-ation, together with
further objectives and advantages thereof, will be better understood from
the following drawings in which a presently preferred. embodiment of the
invsnt,ion will now be illustrated by way of example. It is expressly
understood, however, that the drawings are for the purpose of
.i.l.l.ustrati.on
- 8 -
CA 02574443 2007-01-09
and description only, and are not itlterided as a definition of the limits
of the invention. In the accompanying drawings:
[00018] Figure * is a perspective view of the first prcfcrred
embodiment of the liquid delivery system according to the present
invention, with the integrally formect elongate f.7:exible liquid delivery
hose and ea.ongate flexible vapour recovery hose shown disconnected from
the portable container;
[00o19] Figure 18 is a perspective view similar to Nigure 1, but with
the integrally formed elongate f.J.exible liquid delivery hose and elongate
flexible vapour recovery ho4e shown connected to the portable eontainerj
[00020] Figure ].C is an enlarged exploded pexspoctivc view of the
portion of the Zirst preferred embodimen-t liquid delivery system according
tio the present invention;
[00021] Figure 1D is a greatly cnlargad perspective view of the
container coupling means of Figure 2B;
[00022] Figure 1E is a greatly enlarged perspective view of an
alternative embodiment container coupling means;
[00023] Figure 2A is a perspective view of the first alL=er.riat_.ive
embodiment of the liquid delivery system according to the present
invention, with the integrally formed elongate flexible liquid delivery
- 9 -
CA 02574443 2007-01-09
hose and elongate flexible vapour recovery hose shown connected to the
portable container;
[00024] Figure 28 is an enlarged Aerspectivc view of the first
alternative embodiment of the liquid delivery system of Figure 2A, but
with the integrally formed elongate flexible liquid delivery hose and
elongate flexible vapour recovery hose shown disconnected from the
portable container;
[00025] Figure 3 is a perspective view of the second preferred
embodiment of the liquid delivery system according to the present
invention, with the integra7ly formed elongate flexible liquid delivcry
Yiose and elongaLe flexible vapour recovery hose shown connected to the
portable container;
[00026] Figure 4 is a perspective view of thP third preferred
embodiment of the liquid delivery system according to the preaPnt
invention;
[00027] Figure 5A is an enlarged explodcd perspective view of an upper
pozta.on of the third preferred embodiment of the liquid delivery system
of E'igure 4;
[00028] Figure 5B is a greatly enlarged exploded perspective view of
the container coupling means of the third preferred embodiment of the
liquid delivery system of Figure 4;
- 10 -
CA 02574443 2007-01-09
(000291 Figure 6A is a perspecti.ve view cf t.he fourth prefcrred
embodiment of the liquid delivery system according to the present
invention;
[00030] Figure 68 is an exploded perspective view of an upper portion
of the fourth pzeterred embodiment of the liquid delivery system of Figure
6,;1;
(00031] Figure 7A is a perspective view of the fifth preferred
embodiment of the liquid delivery system according to the present
invention;
(00032] Figure 7B is an enl.dYged perspective view of a lower portion
of the fifth preferred embodiment of the liquid delivery system of Figure
7A;
[00033] Figure $A is a perspective view of the sixth prefPrred
embodiment of the liquid delivery system according to the present
invention;
(00039] Figure 88 is an enlarged perspective view of a lower portion
of the sixth preferred embodiment of the liquid delivery system of F'igure
BA;
[00035] Figure 9A is a side elevational view of the first preferred
embodiment no7rl.e-and-spout assembly as seen in the third preferred
etnbodimerit of the 1 i.qui.d delivery system of Figure 4, with a first
prefGrred embodimeriL spout;
- 11 -
CA 02574443 2007-01-09
[00436] Figure 9S is a top plan view of the nozzle-and-spout assembly
of Figure 9A;
[00037] Figure 9C is a sectional side elevational view of the nozzle-
and-spout assembly of E'a.gure 9B, taken along section line 9C-9C of Figure
9B;
[00038] Figure 1.OA is a cut-away side elevational view of a second
preferred embodiment nozzle-and-spout assembly according to the present
invention, with the second preferred embodiment spout attached;
[00039) Figure lOF3 is a nut-away side elevationa]. view of a third
preferred embodiment nozzle-and-spout assembly according to the present
invention, with the third preferred embodiment spout attached;
[00040] Figure 11A is a cut-away side elevational view cif.- a first
preferred embodiment nozzle body assembly according to the present
invention, without a spout attached;
[00041] Figure 11B is a cut-away side elevational view of the first
preferred embodi.menr two-channel spout coupler of the nozzle body assembly
of Figure 11A;
[00042] Figure 11C is a cut-away side elevational view of the second
preferred embodiment two-channel spout coupler according to the present
invention;
- 12 -
CA 02574443 2007-01-09
[00043] Figure 12A is a cut-away side elevat,i.onal view similar to
Figure 11A, showing the fourth preferred embodiment nozzle-and-spout
assembly with first preferred embodimcnt nozzle body assembly and fourth
preferred embodiment spout attached;
[00044] Figure 12B i.s a cut-away side elevats.onal view similar to
Figure 11A, but showing the fifth preferred embodiment nozzle,dnd-spout
assembly with first preferred embodiment nozzle body assembly and fifth
preferred embodiment spout acco.rding to the present invention;
[00045] Figure 12C is a cut-away side elevational view similar to
Figure 11A, but showing the sixth preferred embodimer,t nozzle-and-spout
assQmhly with first preferred embodiment nozzle body assembly and sixth
preferred embodiment spout according to the present inverition;
[00046] Figure 13 is an enlarged cut-away side elevational view of a
portion of the fourth preferred embodiment nozzle-and-spout assembly of
Figure 12A with fi,rst preferred embodiment nozzle body assembly and fourth
preferred embodimertt spout;
[00047] Figure 14A is an enlarged cut-away side elevational view of a
portion of the fifth preferred embodiment spout-and-nozzle nozzle-and--
spout assembly of Figure 12B with .f..i..r,st preferred embodiment nozzle body
assembly and fifth preferred embodiment spout;
[Q004$1 Figure 14S is an enlarged cut-away side elevational view
similar to Figure 14A, but with an automatic closure mechanism in an open
con~iquration;
- 13 -
CA 02574443 2007-01-09
[00049] Figure 15A is an enlarged cut-away side elevational view of a
portion of the sixth preferred embodiment nozzle-and-spout assembly of
Figure 12C with first preferred embodiment nozzle body assembly and sixth
preferred embodiment spout;
[00050] Figure 158 is a cut-away side elevational view similar to
Figure 15A, but with an autamatic closure mechanism in an open
corifiguration;
[00051] S'igure 16A is a cut-away side elevational view of a second
preferred embodiment nozzle body assembly according to the present
invention;
[00052] Figure 168 is a cut-away aide elevational view of the third
preferred embodiment two-channel spout coupler of the nozzle body assembly
of P'igure 16A;
[00053] Figure 16C is a cut-away side elevational view of the fourth
preferred embodiment two-channel spout coupler according to the present
invention;
[00054] Figure 17A is a cut-away side elevational view similar to
Figure 16A, showing the fourth preferred embodiment nozzle-and-spout
assembly with second preferred embodiment nozzle body assembl.y and fourth
preferred embodiment spout according to the present invention;
- 14
-
CA 02574443 2007-01-09
[o0o55] Figure 178 i.a a cut-away side elevational view similaY- to
Figure 16A, showing the fifth preferred embodiment nozzle--and-spout
assembly with second preferred embodiment nozzle body assembly and fifth
preferred embodiment spout according to the present invention;
[00056] Figure 17C is a cut-away side elevational view similar to
Figure 16A, showing a sixth preferred embodiment nozzle-and-spout assembly
with second preferred embodiment nozzle body assembly and sixth prPferred
embodiment spout according to the present invention;
[00057] Figure 18 is a cut-away side elevational. view of a third
preferred embodiment nozzle body assembly according to the present
invention;
[00058] Figure 19A .i.s a cut-away side elevational view similar to
Figure 18, showing the fourth preferred embodiment nozz].e-and-spout
assembly with third preferred embodiment nozzle body assembly and fourth
preferred embodiment spout according to the present invention;
[00059] Figure 19B is a cut-away side eleval'ional view similar to
Figure 18, showing the fifth preferred embodiment nozzle-and-spout
assembly with third preferred embodiment nozzle body assembly and fifth
preferred embodiment spout according to the present invention;
[00060] Figure 19C is a cut-away side elevational view similar to
Figure 18, showing the sixth preferred embodiment nozzle-and-spout
assembly with third preferred embodiment nozzle body assembly and sixth
preferred embodiment spout according to the present invention;
- 15 -
CA 02574443 2007-01-09
[00061] Figure 20 shows the fifth preferred embodiment nozzle-and-
spout assembly aarording to the present invention;
[00062] Figure 21 is an exploded perspective view of the fifth
preferred embodiment spout according to the present invention;
[00065] Figure 22A is a side elevational view of the spout trigger of
the fifth preferred embodiment spou~ cr r'igure 24;
[00064] Figure 22H is a cut-away side elevational view of ttie spout
trigger of Figure 22A with the air valve pin grommets removed for the sake
of clarity;
[00065] Figure 23A is a perspective view of the spout trunk of the
fifth preferred embodiment spout of Figure 24; and,
[00066] Figure 23H is cut-awa,y side elevational view of the spout
trunk of Figure 23A.
DETAIlj'gIri DESCRIPTION OF THE PREFERRED AND ALTERNATIVE Et-MOUIMENTS
[00087] Referring to Figures 1 through 23$ of the drawings, it will be
noted that Figures 1 through 1D illustrate a first preferred embodiment
of the liquid delivery system of the present invention, Figure lE
illustrates a first alternative embodiment of the container coupling means
- 16 -
CA 02574443 2007-01-09
of the present invention, Figure 2A illustrates a first alternative
embodiment of the liqua.d delivery system of the present invention, k'igux=es
3A arid 3B illustrates a second preferred embodiment of the liquid delivery
system of the present invention, Figures 4 through 5B illustrate a third
preferred embodiment of the liquid delivery system of the present
invention, Figures 6A and 6B illustrate a fourth preferred embodiment of
the liquid delivery system of the present invention, Figures 7A and 7B
illustrate a fifth preferred embodiment of the liquid delivery system of
the present itivention, Fiqures 8A and 8B illustrate s sixth preferred
embodiment of the liquid delivery system of the present invention, Figures
9A through 9C illustrate a first preferred emboditiietiL of the
nozzle-and-spout assembly of the present invention, Figure 1QA illustrates
a second preferred embodiment of the nozzle-and-spout assembly of ttie
present invention, Figure 108 illustrates a third preferred ernbodiment of
the nozzle-and-spout assembly of the present invent.ion, Figure 11A
illustrates a fir_gt preferred embodiment of the nozzle body assembly of
the present invention, N'iguze 11B illustrates a first preferred embodiment
of the two channel spout coupler of the present invention, Figure 11C
illustrates a secorid preferred embodiment of the two channel spout coupler
of the present invention, Figures 12Pl. and 13 illustrate the fourth
preferred embodiment of the nozz.l.e-And-spout assembly of the present
invention with the first preferred embodiment of the nozzle body assembly
and the fourth preferred embodiment of the spout of the present invention,
Figures 12B, 14A and 145 illustrate the fifth preferred embodiment of the
nozzle-and-spout assembly of the present invention with the first
preferred embodiment of the nozzle body assembly and the fifth preferred
embodiment of the spout of the present invention, Figures 12C, 15A and 15B
illustrate the sixth preferred embodiment of the nozzle-and-spout= assembly
- 17 -
CA 02574443 2007-01-09
of the present Invention with the first preferred embodiment of the nozzle
body assembly and the si.xi-h preferred embodiment of the spout of the
present invention, Figure 16A illustrates the second preferred embodiment
of the nozzle body assembly of the Presen=t invention, Figure 16B
illustrates the third preferred embodiment of the t:wo channel spout
coupler of the present invention, Figure 16C illustrates the fourth
preferred embodiment of the two channel spout coupler of the present
invention, Figure 17A illustrates the fourth preferred emboda.ment_ of the
nozzle-and-spout assembly of the present invention with the second
preferred embodiment nozzle body assembly and the fourth preferred
emPV?r_lim?nt eprlit , Fi rit7rP. 17A -i 1 1 ustr.ptes the fifth preferred
embodiment
of the nozzle-and-spout assembly of the present invention with the second
preferred embodiment nozzle body assemb,ly and the fifth preferred
embodiment spout, Figure 17C illustrates the sixth preferred embodiment
of the nozzle-and-spout assembly of =the present invention with the second
preferred embodiment nozzle body assembly and the sixth preferred
embodiment spout, Figure 3.8 illusL-rates the third preferrcd embodiment of
the nozzle body assembly of Lhe present invention, Figure 19A illustrates
the fourth preferred embodiment of the nozzle-and-spout assembly of the
present invention with the third preferred embodiment nozzle body assembly
and the fourth preferred embodiment spout, Figure 1914 1.1.lustrates the
fifth preferred embodiment of the nozzle-and--spout assembly of the present
invention with the third preferred embodiment riozzle body assembly and the
fifth preferred embodiment spout, Fi.gure 19C illustrates the sixth
preferred embodiment of the nozzle-and-a3pout assembly of the pr,esent
invention with the third preferred embodiment nozzls body assembly and the
sixth preferred embodiment spout, Figure 20 illustrates the fifth
preferred embodiment of the nozzle-and-spout assembly of the present
- 10 -
CA 02574443 2007-01-09
invention with the fifth preferred embodiment spout, and Figures 21
t.hrouqh 24 illustrate the fifth preferred embodiment of the spout of the
present inventiotl.
[00068] Reference will now be made to Figures 1 through lE, which show
a firs=N preferred embodiment of the liquid delivery system of the present
i_nvention, as indicated by general reference numeral 1. The liquid
delivery system 1 is for supplying liquid, as indicaLed by the reference
numeral 5 in Figure 1A, from a portable contairier 20 to at least one
selected remote destination 8 and removing vapour from the at least one
selected remote destination 8. The liquid delivery system 1 comprises a
portab.le container 20 having a substantially hollow in-rer..ior 7 for
retain.ing l.i quid 9 therein.
C000691 There is an elongate flexible liquid delivery hose 11 having
a liquid inlet 14 and a].a.quid outlet 13. The elongate flexible liquid
delivery hose 11 is in fluid communication at the liquid inlet 14 with the
substantially hollow interior 7 of the portable coiitainer. 20 for receiving
liquid from the portable container 20, and in fluid cotrvnti.nication at the
liquid outlet. 13 with the at least one selected remote destination 8 for
delivering the received liquid to the at least one selected remote
destination S.
j000701 There is also an elongate flexible vapour recovery hose 12
having a vapour inlet 16 and a, vapour outlet 15. The elongate flexible
vapour recovery hose 12 is in fluid communication at the vapour inlet 16
with the al: least one selected remote destination 8 for receiving vapour
from the at least one selectect remote destination 8, and is in fluid
- 19 -
CA 02574443 2007-01-09
communication at the vapour outlet 15 with the gubstantiall,y hollow
interior 7 of the portable container 20 for delivering the received vapour
to the substantially hollow interior 7 of the portable container 20. The
elongate flexible liquid delivery hose 11 and ttie elongate flexible vapour
recovery hose 12 together comprise a two line hose 10, and preterably are
integrally formed one with the other.
(00071] As can be best seen in Figure 1A, prior to use, the portable
container 20 is sealed by means of a threaded cap 21 threadibly engaged
on the container inlet 22, and an inlet cover 25 retained in place over
the container inlet 22 by the threaded cap 21. When configured fpr use,
as shown in Figure 1B, the inlet cover 25 is replaced by a container
coupling means in the form of a two-line container coupling means 30 that
is shown in E'igure 1G and shown enlarged in detail irl Figure 1D. The
container coupling means 30 has a liquid supply conriection means that
comprisos a liquid supply nipple 38 and a vapour recovery corinection means
that comprises a vapour recovery nipple 39. The elongate flexible liquid
delivery hose 11 is connected in fluid communication to the liquid supply
nipple 38 and the elongate flexible vapour recovery hose 12 is connected
in fluid communication to the vapour recovery nipple 39. There is also
liquid inlet nipple 37 axially aligned with and in fluid communication
with the liquid supply nipple 38. A liquid supply hose 26 is connected
in fluid commun:ic:ation to the liquid inlet 14 via nipple 37 for delivering
liquid from t_Yie portable container 20 to the elongate rlexible liquid
delivery hose 11. A user would start the flow of liquid through the
elongate flexible liquid delivery hose 11 by tilting the portable
container to thereby pour the liquid. The portable container 20 could
- 20 -
CA 02574443 2007-01-09
subsequently be set down and the liquid allowed to siphon out of the
portable container 20.
[00072] Preferably, there is a check valve 31 disposed within the
container coupling means 30 for precluding the flow of liquid back into
the portable container 20, and a check valve 32 disposed in a co-operating
annular orifice 33 that is axially aligned with the vapor passageway 35
of the vapor recovery nipple 39.
[00073} The elongate flexible liquid delivery hose 11 and the elongate
flexible vapour recovery hose 12 permit the movement of the liquid outlet
13 of the elongate flexible liquid delivery hose 11 to the at least one
selected remote destination 8 while the container remains substantially
stationary, to thereby permit the delivery of the liquid to tha at least
one selected remote destinatioti S. Reduced air pressure in the
substantially hollow interior 7 of the portable container 20 resulting
from the removal of the liquid from the substantially hollow iriterior 7
of the portable container 20 causes vapour to be suctioned via the
elongate flexible vapour recovery hose 12 into the substantially hollow
interior 7 of the portable container 20.
[00074] Reference will now be made to Figure 1E, which shows an
alternative embodiment two-line container coupling means 36. The
alternative embodiment two-line container coupling means 36 is similar to
the two-line container coupling means 30 except that it has a femaa.P
thread and a.c:=Ls to replace the contairierts threaded Cap 21.
- 21 -
CA 02574443 2007-01-09
[00075] Reference will now be made to Figures 2A and 2B which show the
first alternative embodiment of the liquid delivery system according to
the present invention, as indicated by the reference 2. Figure 2A shows
the iriCegrally formed elongate flexible liquid delivery hose and elongate
flexible vapour recovery hose 10= shown connected to the portable
container 20=, and Figure 2B is an enlarged perspective view of the first
alternative embodiment of the liquid delivery system 2 of Figure 2A, but
with the integrally formed elongate flexible liquid delivery hose and
elongate flexible vapaur recovery hose 10= shown disconnected from the
portable container 20=. The liquid supply nipple 53 and the vapour
recovery nipple 54 extend outwardly from the bottom of the portable
container 20=. Typically, the first alternative embodiment liquid
delivery system is used to siphora the liquid in the portable container 20=
to a remote destination (not specifically shown)_ Accordingly, the
portable container 20= does not need to be tilted in order to cause the
flow of liquid therefrom.
[00076] Reference will now be made to Figure 3, which shows a second
preferred embodiment of the liquid delivery system of the present
invention, as indicated by general reference numeral 2, and to Figure 10A,
which separately shows the nozzle-and-spout assembly of Figure 3. The
second preferred embodiment liquid delivery system 2 is substantially the
same as the first preferred embodiment liquid delivery system 1 as shown
in Figures 1A through 1F, except for the addition of a nozzle-and-spout
assembly, as indicatpd by the reference numeral 200. Accordingly,
reference numerals used for describing the various components of the first
preferred embodiment liquid delivery system 1 of Figures lA through 1E,
- 22 -
CA 02574443 2007-01-09
will be used to describe the same componenta in reference to the second
preferred embodiment liquid delivery system 2 as shown in Figure 3_
[00077] The second preferred embodiment liquid delivery system 2 is
for supplying liquid, as indicated by the reference numeral 5 in the
container, from a portable container 20 to at least one selected remote
destination 8 and remov,i,ng vapour from the at least one selected remote
destination 8.
[00078] As mentioned above, the second preferred embodiment liquid
delivery system further comprises a nozzle-and-spout assembly. ThP
e7:ongate flexible liquid delivery hose is operatively connected in
supported relation to the nozzle-and-spout assembly, and the elongate
flexible vapour recovery hose is operatively connected in supported
relation to the elongate flexible liquid delivery hose. More
specifically, the elongate flexible liquid delivery hose is operatively
connected in liquid delivery relation to the nozzle-and-spout assembly and
the elongate flexible vapour recovery hose is operativoly connecLed in
vapour receiving relation to the nozzle-and-spout assembly, as will be
discussed in greater detail subsequently.
[00079J As can be seen in Figure 10A, the spout 220 has a nozzle
connection end 220a and a free end 220b and is a two-channel spout with
a main channe]. 221 and a vapor recovery channel 222. The elongate
flexible liquid delivery hose 11 extends througYa the main channel 221 such
that the outlet 13 of Lhe elongate flexible liquid delivery hose 11 is
disposed adjacent the free end 220b of the spout 220. The inlet 16 of the
elongate flexible vapour recovery hose 12 is connected in fluid
- 23 -
CA 02574443 2007-01-09
communication to the vapor flow channel outlet 224 of the vapor flow
channel 222 at the nozzle connection end 220a of the spout 220. The vapor
flow channel inlet 223 of the vapor flow channel 222 is disposed at the
free end 220b of the spout 220. A liquid channel plug 17 is insertable
into the liquid outlet 13 of the elongate flexible liquid delivery hose
11, whereat it is retained in frictional relation. The liquid channel
plug 17 precludes the escape of liquid fXam the liquid outlet 13 when the
nozzle-and-spout assembly 200 is not in use.
[00480] Reference will now be made to Figure 10B, which shows a third
preferred embodiment nozzle-and-spout assembly according to the present
invention, as indicated by the reference 670. The nozzle-and-spout
assembly 670 comprises a nozzle body 350 and a spout 650. The third
preferred embodiment spout 650 has a nozzle connection end 600a and a free
end 600b, and is attached to the nozzle body 350 at its nozzle connection
end 600a.
[00081] In the third preferred r.mbodiment nozzle-and-spout assembly,
the spout 650 comprises a two-channel spout that itself comprises a liquid
flow channel 620 and a vapour flow channel 630. The liquid flow channel
620 has a liquid flow channel inlet 620a disposed at the nozzle connection
end 600a of the spout 650 and a liquid flow channel outlet 620b disposed
at the free end 600b of the spout 650. Similarly, the vapour flow cnatinel
630 has a vapour flow channel inlet 630a disposed at the free end 600b of
the spout 650 and a vapour flow channel outlet 630b dxsposed at the nozzle
connection end 600b of the spout 650. As can be readily seen .i.n Figure
10B, the liquid flow channel outlet 620b and the vapour flow r:hannel inlet
630a are disposed adjacent one to another at the free end 600b of the
- 24 -
CA 02574443 2007-01-09
spout 650. Further, the liquid flow channel inlet 620a and the vapour
flow channel outlet 630b are disposed adjacent to one another at the
nozzle connection end 600a of the spout 650.
[00092] The elongate flexible liquid delivery hose 11 is operatively
connected to the two-channel spout 650 at the liquid flow channel 620,
specifically at the liquid flow channel inlet 620a in order to deliver
liquid directly to the liquid flow channel 620. Similarly, the elongate
flexible vapour recovery hose 12 is operatively connepted to the
two-ohannel spout 650 at the vapour flow channel 630, specifically at the
vapor flow channel outlet 630b, in order to receive vapor directly from
the vapor flow channel 630.
[00083] The free end 600b of the liquid flow channel 620 has an
internally threaded tip 623 that receives a liquid channel plug 624
therein having a co-operating male thread. One skilled in the art will
readily see that this is just an added feature and and not necessary to
the over all function of the two channel spout. As can be readily seen
in Figure i0B, the liquid flow channel 620 and the vapour flow channel 630
are separate and distinct one from the other, in order to keep the llquid
being delivered and the recovered vapour separate one from the other.
[000B4] Reference will now be made to Figures 9A through 9C which show
the first preferred embodiment of the nozzle-and-spout assemblX of the
present invention, as indicated by.r.eference 100 in Figures 9A through 9c,
more thoroughly. In the first preferred embodiment riozzle-and-spout
assembly, L-here is a noazle body 350 and a spout 120. The spout 120 is
only a single channel spout has a nozzle connection end 121 and a free end
- 25 -
CA 02574443 2007-01-09
122_ The outlet 13 of the elongate flexible liquid delivery hose 11 and
the inlet 16 of the elongate flexible vapour recovery hose 12 are disposed
adjacent the free end 122 of the spout 120. A liquid channei plug 17 is
insertable into the liqui,d outlet 13 of the elongate flexible liquid
delivery hose 11, whereat it is retained in frictional relation. The
liquid channel p.lug 17 precludes the escape of liquid from the liquid
oiitlet 13 when the nozzle-and-spout assembly 200 is not in use.
[00085] Reference will now be made to Figures 4 through 5B, which show
a third preferred embodiment of the liquid delivery system of the present
invention, as indicated by genPral reference numr..ral 2=. The tbird
preferred embodiment liquid delivery system 3 is substantially the same
as the first preferred embodiment liquid delivery system 1 as stiown in
Figures 1A through lE, and the second preferred embodiment liquid delivery
sywtem 2 as shown in Figure 3, except for the addition of a pump means,
specifically a foot operable pump, as indicated by the reference numeral
60 operatively connected to the portable container for causing the liquid
thrrein to be pumped from the portable container to the at least one
se]ected remote destination when the pump means is pumped.
[00086] Accordingly, reference numerals used for describing the
various components of the fiirst preferred embodiment liquid delivery
system I. of Figures 1A through 1E, and the second preferred embodiment
liquid delivery system 2 as shown in Figure 3, will be used to describe
thr. same components in reference to the third preferred embodiment liquid
delivery system 2 as shown in Figures 4, 5A and 5B.
- 26 -
CA 02574443 2007-01-09
[b00871 The liquid delivery system 3 is for supplying liquid, as
indicated by the reference numeral 5 in Figure 1A, from a portable
container 20 to at least one sclected remote destination 8 and removing
vapour from the at least one selected remote destination B. The liquid
delivery system 3 comprises a portable container 20 having a substantially
hollow interior 7 for retaining liquid 9 therein.
[00088] As mentioned above, the foot operable pump is operatively
connected to the portable cantainer for receiving liquid from the portable
container 20 and for causing the liquid therein to be pumped from the
portable container to the at least one selected remote destination whGn
the foot operable pump 60 is pumped, as will be discussed in greater
detail subsequently.
[00089] There is an elongate flexible liquid delivery hose 11 having
a liquid inlet 14 and a liquid outlet 13. The elongate flexible liquid
delivery hose 11 is operatively connected to the foot operable pump 60.
More specifically, the elongate flexible liquid delivery hose 11 is in
fluid communication at the liquid inlet 14 with the foot operable pump 60
for receiving liquid from the portable container 20, via a container
coupling means in ttie form of a two-line container coupling means 61 that
is shown in Figures 4 and 5A and shown enlarged in detail in Figure 5B_
The container coupling means 61 is threadibly engaged via female thread
69 onto a cooperating male threaded neck 24 of the portable container 20.
The container coupling rneans 61 has a liquid supply connection means that
comprisos a threaded pump end 68 and a vapour recovery connection means
that comprisea a vapour recovery nipple 63. The intake 60a of the foot
operable pump 60 has a male threaded portion 60b that threadibly engages
- 27 -
CA 02574443 2007-01-09
the threaded pump end 68 so as to be in fluid communication therewith.
The elongate flexible liquid delivery hose 11 is connected in fluid
communication to the liquid supply nipple (not specifically shown) of the
foot operable pump 60, and the elongate flexible vapour recovery hose 12
is connected in fluid comCnunication to the vapour recovery nipple 63.
[00090] The elongate flexible liquid delivery hose 11 is ei.thor in
fluid communication at the liquid outlet 13 with the at least one selected
remote destination 8 for delivering the received liquid to =the at least
orie selected remote destination 8 or the liquid outlet 13 of the elongate
flexible liquid delivery hose is operatively connected in supported
relation to the nozzle-and-spout assembly, and the elongate flexible
vapour recovery hose is operatively connected in supported relation to the
elongate flexible liquid delivery hose. More specifically, the elongate
flexible liquid delivery hose is operatively connected in liquid delivery
relation to the nozzle-and-spout assembly and the elongate flexible vapour
recovery hose is operatively connected in vapour receiving relation to the
nozzle-and-spout assembly, as will be discussed in greater detail
subsequently.
[00091] There is also an elongate flexible vapour recovery hose 12
having a vapour inlet 16 and a vapour outlet 15. The elongate flexible
vapour recovery hose 12 is in fluid communication at the vapour inlet 16
either directly or via a nozzle-and-spout assembly with the at least one
selected remote destination 8 for receiving vapour from the at least one
selected remote destination 8, and is in fluid communiGation at the vapour
outlet 15 wi.th the substatntially hollow interior 7 of the portable
container 20 for delivering the recei'ved vapour to the subsl-.antially
- 28 -
CA 02574443 2007-01-09
hollow interior 7 of the portable container 20. The elongate flexible
liquid delivery hose 11 and the elongate flexible vapour recovery hose 12
together comprise a two line hose 10, and preferably are integrally formed
one with the other.
[000921 The vapour outlet 15 is in fluid communication with the
substantially hollow interior 7 of the portable container 20 via the
two-line container coupling means 61.
100093] There is also liquid inlet nipple 67 axially aligned with and
in fluid communication with the threaded pump end 68. A liquid supply
hose 26 is connected in fluid communication to the liquid inlet nipple 67
for receiving liquid from the portable container 20.
[00094] Preferably, there is a check valve 31 disposed within the
container coupling means 60 for precluding the flow of liquid back into
the portable container 20. The check valve 31 is disposed in a
co-operating passageway 66 that is axially aligned with.the passageway 65
of the liquid inlet nipple 67 and also with the threaded pump end 68.
(00095] There is also a check valve 32 disposed in a co-operating
aperture 64 that is axially aligned with the vapor passageway 62 of the
vapor recovery nipple 63.
[00096] The elongate flexible liquid delivery hose 11 and the elongate
flexible vapour xecovery hose 12 permi.t the movement of the liquid outlet
13 of the elongate flexible liquid delivery hose 11 to the at least one
selected remote destination 8 while the container remains substantially
- 29 -
CA 02574443 2007-01-09
stationary, to thereby permit the delivery of the liquid to the at least
one selected remote destination B. Reduced air pressure in the
substantially hollow interior 7 of the portable container 20 resulting
from the removal of the liquid from the substantially hollow interior 7
of the portable container 20 causes vapnur to be sucti,oned via the
elongate flexible vapour recovery hose 12 into the substantially hollow
interior 7 of the portable container 20.
[000977 As can be seen in Figure 4, the third preferred embodiment
liquid delivery system 3 of the present invention includes the first
preferred embodiment nozzle-and-spout assembly 200. As disCUssed
previously, the elongate flexible liquid delivery hose 11 and the elongate
fl.exible vapour recovery hose 12 are operati,vPly connected iri supported
relation to the nozzle-and-spout assembly 200. More specifically, the
elongate flexible liquid delivery hose 11 is operatively connected in
liquid delivery relation to the nozzle-and-spout assembly 200 and the
elongate flexible vapour recovery hose 12 is operatively connected in
vapour receiving relation to the nozzle-and-spout assembly 200, in the
same manner as d3,sc.ussed above with reference to the nozzle-and-spout
assembly 200.
[00098] in use, the third preferred embodiment liquid delivery system
3 is assembled, as can be seen in Figure 5A, with the portable container
20 in an upright orientation. Subsequently, so that liquid may be pumped
from the portable container 20, portable containor 20 is tilted to an
orientation is shown in Figure 4. In this orientation, liquid is supplied
from the portable container 20 into the foot operable pump 60, through, the
two-line container coupling means 61. When the foot operable pump 60 is
- 30 -
CA 02574443 2007-01-09
p"mped, liquid from the foot operable pump 60 is pumped through the
elongate flexible liquid delivery hose 11 to the nozzle-and-spout assembly
200, and out of the nozzle-and-spout assembly 200 to the remote
destination 8.
[00099] It can also readily be seen that the present invention
comprises a method of supplying liquid from a portable container to at
least one selected remote destination and removirlg vapour from the at
least one selected remote destination. The method basically comprises the
steps of first supplying liquid to a remote destination via an elongate
flexible liqtaid delivex-y hose, wherein the elongate flexible liquid
delivery hose is in fluid communication with a portable container,
preferably by pumping liquid to the remote destination via the elongate
flexible liquid delivery hose, arid delivering the liquid from a
nozzle-and-spout assembly. rurther, this step preferably comprises the
step of moving Lhe nozzle-and-spout assembly while the portable container
remains stationary. In this manner, it is easy and convenient to fill
just about any type of remote destination containe.r_, at any convenient
height, or fill more than one remote destination conLainer, without having
the inconvenience of moving, lifting and/or tilting portable container.
[ooo7.oo] The subsequent step basically involves auctioning vapour from
the destination to the portable container through an elongate flexible
vapour recovery hose, wherein the elongate flexible vapour recovery hose
is in fluid communication with the portable container, and wherein low air
pressur, e_ in the portable container, as caused by the removal of liquid
from the portable container, causes the suctioning of the vapour.
- 31 -
CA 02574443 2007-01-09
[000101] ReferenCe wil.l now be made to Figures 6A and 6B, which show a
fourth preferred embodiment of the liquid delivery system of the present
invention, as indicated by the reference numeral 4. The fourth preferred
embodiment liquid delivery system 4 is substantially the same as the third
preferred embodiment liquid delivery system 3 as shown in Figures 4, 5A
and 5B, except that the elongate flexible vapour recovery hose 12 is
attached at its vapour outlet 15 to a barbed vapor recovery nipple 72.
Further, the container coupling means 90 does not acCommodate the elongate
flexible vapour recovery hose 12, only the elongate flexible liquid
delivery hose 11.
[000102] Reference wil], now be made to Figures 7A and 7B, which show a
fifth preferred embodiment of the liquid delivery system of the present
invention, as indicated by the re~erence numeral 5. The fifth preferred
embodiment liquid delivery systetn 5 is substantially the same as the
fourth preferred embodiment l5.quid delivery system 4 as shown in Figures
6A and 6B, except the foot operable pump 81 is integrally formed with the
portable container 80. The f.ont operable pump 81 has a (not specifically
shown) that is covered by a container coupling means 82 that is retained
in place there on my means all of a threaded cap 21. The container
coupling means 82 as a barbed liquid supply nipple 84 and a barbed vapour
recovery nipple 83. The elongate flexible .la.quid delivery hose 11
connects in fluid communication to the liquid supply nipple B4 then the
elongate flexible vapour recovery hose 12 conneats in fluid communication
to the vapour recovery nipple 83.
[000103] Reference will now be made to Figures 8A and 8B, which show a
sixth preferred embodiment of the liquid delivery system of the present
- 32 -
CA 02574443 2007-01-09
invention, as indicated by the reference numeral 6. The sixth preferred
embodiment liquid delivery system 6 is substantially the same as the fifth
preferred embodiment liquid delivery system 5 as shown in Figures 7A and
7B, except that the elongate flexible vapour recovery hose 12 is attached
at its vapour outlet 15 to a barbed vapor recovery nipple 87 on the
portable container 85. Also, elongate flexible liquid delivery hose 11
is attached to a barbed liquid supply nipple 84 that is part of the foot
operable pump 86, Further, the inlet cover 25 closes off the liquid
supply autlet 86a of the foot operable pump 86.
[000104] Reference will now be made to Figures 11A through 12A and 13,
which show the first preferred embodiment nozzle body assembly according
to the present z.nvention, as indicated by the reference numeral 300, and
the first preferred embodiment two channel spout coupler 320 of the nozzle
body assembly 300. In the first preferred embodiment nozzle body assembly
300, the two-channel spout 600 (see Figure 13) is connected to the nozzle
body 350 in removable and replaceable relation, specifically by means of
a two-channel spout coupler 320. The first preferred embodiment
two-channel spout coupler 320, as shown in Pigure 11B, has a liquid
delivery connection means and a vapour recovery connection means. As
illustrated, the liquid delivery connection means comprises a liquid
delivery nipple 332 having a liquid flow passageway 330, and the vapour
recovery connection means comprises a vapour recovery nipple 341 having
a vapor flow passageway 340. The elongate flexible liquid delivery hose
11 is connpated in fluid communication with the liqui.ei delivery nipple
332, and the elongate flexible vapour recovery hose 12 is connected in
fluid communication with the vapour recovery nipple 341. Further, there
is an annular seat 333 for receiving the nozzle connection end 621 of the
- 33 -
CA 02574443 2007-01-09
nozzle 600 therein, which annular seat 333 defines a liquid flow channel
331.
[000105] The two-channel spout coupler 320 also has an annular wall 324
that terminates in a front rim 321 and defines an air reservoir 640. A
circular flange 326 extends peripherally outwardly from the base of the
annular wall 324. The annular wall 324 extends through a front opening
351 in the front wal7, portion 352 of the nozzle body 350. The circular
flange 326 seats between the front wall portion 352 of the nozzle body 350
and an annular flange 305, to preclude the two-channel spout coupler 320
from falling out of the nozzle bad.y 350. A screw cap 310 threadibly
engages the cooperating threads 322 on the annular wall 324 to secure a
spout to the two-channel spout coupler 320.
[000106] The two-channel spout 600 has an annular flange 610 that is
trapped in place between the front rim 321 and the annular wall 324 and
the inwardly directed annular flange 311 of the screw cap 310. The end
plug 621 at the nozzle connection end of the two-channel spout 600 has an
AO@-ring 622 thereon. The Ao@-ring 622 engages the inner sealing surface
331 of the annular seat 333, to preclude the escape of liquid from the
liquid passageway 330 into the air reservoir 640.
[000107] The two-channel spout coupler 320 conveys the liquid from the
elongate flexible liquid delivery hose 11 directly to the liquid flow
channel 620 of the two--channeJ, spout 600 via the liquid passageway 330.
The two-channel spout coupler 320 also conveys the vapour from the vapor
flow channel inlet 631, through the vapour flow channel 630 of the
two-channel spout 600, through the air reservoir 640, and to the elongate
- 34 -
CA 02574443 2007-01-09
flexib,l,e vapour recovery hose 12 via the vapor flow passageway 340 through
nipple 341.
[000108] Reference will now be made to Figure 11C, which shows the
second preferred embodiment two channel spout coupler 360 of the
nozzle-and-spout assembly 300. The second preferred embodiment, two
channel spout coupler 360 is similar to the first preferred embodiment two
ahannel spout coupler 320 except that it additionally comprises a check
valve 380 seated within and annular orifice 362 so as to be axially
aligned with the liquid flow passageway 330 of the delivery nipple 332,
and a check valve 32 seated within and annular ozifipe 361 so as to be
aXialJ.y aligned with the vapor flow passageway 340 of the vapour recovery
nipple 341.
[000109] Reference will now be made to Figures 12B, 14A and 145, which
show the fifth preferred embodiment nozzle-and-spout assembly according
to the present invention, which consists of the first preferred embodiment
nozzle body assembly according to the present invention, as indicated by
the reference numeral 300, and the fifth preferred embodi.mPnt spout
according to the present invention, as indicated by the reference numeral
700. The fifth preferred embodiment spout 700 comprises a Lwo-charinel
spout for delivering liquid to at least one selected remote destination
and removing vapour from the at least one selected remote destination.
The two-channel spout 700 is connectable to a nozzle body in removable and
replaceable relation where the spout is connected by means of two-channel
spout coupler 320.
- 35 -
CA 02574443 2007-01-09
[000110] The two-channel spout comprises a main body, a liquid flow
channel within the main body 717 & 743 and a vapour flow channel 736
within the main body. The liquid flow channel 717 & 743 has a liquid flow
channel inlet 717a and a liquid flow chanfiel outlet 745b. The vapour flow
channel has a vapour flow channel inlet 737 and a vapour f]_ow channel
outlet 722. The liquid flow channel, and the vapour flow channel are
separate and distinct one from the other, and thereby permit liquid within
the liquid flow channel and vapour within the vapour flow channel to be
kept separate and distinct one from the other.
[000111] The spout 700 is the same as the fourth preferred embodiment
two-channel spout 600 in that it mounts to the nozzle body assembly 300
in the same manner. A screw cap 310 threadibly engages the cooperating
threads 322 on the annular wall 324 to secure the spout 700 to the
two-channel spout coupler 320.
[000112] The two-channel spout 700 has an annulax flange 720 that is
trapped in place between the front rim 321 of the annular wall 324 and the
inwardly directed annular flange 311 of the screw cap 310 creating air
reservoir 727. The back end of the trunk at the nozzle connection end 717a
of the two-channel spout '100 has an AO@-ring 715 thereon. The ,AO@-ring
'715 engages the inner sealing surface 331 of the annular seat 333, to
preclude the escape of liquid from the liquid passageway 330 into the air
reservoir 727.
[000113J The spout 700 is different from the fourth preferred
embodiment two-channel spout 600 in that it further CompziSes an
auto-closure mechanism built into the two-channel spout 700. ThP
- 36 -
CA 02574443 2007-01-09
two-channel spout 700 has two major cylindrical elements that move with
respect to each other, namely a trunk and a sliclable trigger. The
slidable trigger 730 is slidably movable with respect to the trunk 710
between a forward closed position, as best seen in Figure 14A, and a
rearward open position, as best seen in Figure 14B.
[000114] The trunk has a foXeword reduced c:yl..i.nc].rical portion, and an
openable and closable fluid flow valve having an elonqate cylindrical core
750 wi-Lh fins 755 extending radially outwardly from the back half of the
elorzgate cylindrical core 750, where the core 750 has widened head 753
with an AO@-=ring 754 at the front end which seals against trigger opening
733. The fluid flow valve is opened as the trigger 730 is slid rearwardly
to unseat o-ring 754 from trigger opening 733 and closed as spring 723
reaserts itself to push the trigger 730 forward. The core 750 is securely
retained within the reduced cylindrical portion of the trunk 710 and is
retained in place by an annual or flange 721 at its back that engages
retension clips 756 on the core fins an annular shoulder at the trunks tip
711 which engage steps 757 on the fins 755.
[000115] The slidable trigger has an enlarged rearward cylindrical
portion and a reduced foreword cylindrical portion. The enlarged rearward
cylindrical portion defines an air cavity 738, through which vapour
passes, as will discussed subseqtzently. A portion of the trunk is
surrounded by the enlarged rearward cylindrical portion of the slidable
trigger and a forward portion of the trunk is surrounded by the rediaced
foreword cylindrical portion of the slidable trigger. The fluid flow
valve that extends forwardly from the trunk is surrounded by a portion of
the reduced foreword cylindrical portion of the slidable trigger. An
- 37 -
CA 02574443 2007-01-09
AO@-ring 713 retained on the foreword reduced cylindrical portion of the
trunk seals against the inner surface of the reduced foreword cylindrical
portion of the slidabl,e trigger, to preclude liquid from entering the air
cavity 735,
[000116] A trunk spring 723 is operatively moilnted between the trunk
and the slidable trigger bias the slidable trigger to its forward closed
posit=ion, as best seen in Figure 14A, whereat the AO@-ring 754 seals
against the beveled AO@-ring sealing surface 733, to thereby close off the
spout 700 to prevent fluid from flowing through the spout 700. The
slidable trigger is moved to its rearward open position when the trigger
hook 741 engages the mouth of a remote destination container (not
specifically shown).
[000117] There are two air valve pins 742 extending rearwardly from the
enlarged rearward cylindrical portion of the slidable trigger. The air
valve pins 742 each have a grommet gasket 744 retained in place on the end
thereof by means of an enlarged grommet retaining portion 743. The air
valve pin9 742 each extend through a cooperating air hole 722 in the
flange 720 of the trunk 710.
[000118] In use, when the slidable trigger is in its forward closed
position, as best seen in Figure 14A, the Ao@-ring 754 seals against the
beve].ed AO@-ring seaZing surface 733, to thereby close off the spout 700,
as mentioned above, and the grommet gasket 744 seal off the respeative air
holes 722 to preclude vapor from passing thereLtirough. When the slidable
trigger 730 is in its rearward open position, as best seen in Figure 14B,
the AO@-rxng 754 is removed from sealing engagement against the beveled
- 38 -
CA 02574443 2007-01-09
A0@-ring sealing surface 733. Accordingly, liquid can flow through the
fluid channel 717 past the fluid flow valve, and out the forward end 745b
of the two-channel spout 700. Further, vapar is suctioned ittto the vapor
channel inlet 737, through the vapor channel 736, through the air cavity
738 in the enlarged rearward cylindrical portion of the slidable trigger,
through the air holes 722 and into the air cavity 727 between the trunk
'110 and coupler 320 , whereat it is suctioned into the vapour inlet 16 of
the elongate flexible vapour recovery hose 12, and to the portable
container (not specifically shown).
(000119] The ai,r valve feature in the two channel auto closure spout
700 is not necessary if the two channel auto closure spout is used in
conjunction with two channel spout couplers 360, 460, which incorporate
air check valves or container couplers (30,36,61,82), which incorporate
air check valves.
[000120] Reference will now be made to Figures 12C, 15A and 15B, which
show the sixth preferred embodiment nozzle-and-spout assembly according
to the present invention the first preferred embodiment nozzle body
assembly according to the present invention, as indicated by the reference
numeral 300, artd the sixth preferred ernbodiment spout according to the
present invention, as indicated by the reference numeral 800. The sixth
preferred embodiment spout 800 is somewhat similar, to t2ie fifth preferred
embodiment two-channel spout 700 in that it comprises an atzto-closure
mechanism built into the two-channel spout 800, but also different than
the fifth preferred embodiment two-channel spoiuti 700 in that it cotnprises
an auto-shutoff mechanism built into the two-channel spout 800.
- 39 -
CA 02574443 2007-01-09
[000121] The sixth preferred embodiment spout 800 comprises a
two-channel spout for delivering liquid to at least one selected remote
destination (not specifical..1.y shown) and removing vapour from the at least
one selected remote destination. The two-channel spout 800 is connectable
to a nozzle body 300 in removable and replaceable relation.
[000122] The spout 800 is the same as the fourth preferred embodiment
two-channel spout 600 in that it mounts to the nozzle body assembly 300
in the same manner. A screw cap 310 threadibly engages the cooperating
threads 322 on the annular wal.7. 324 to secure the spout 800 to the
two-channel spout coupler 320.
[000123] The two-channel spout 800 has an annular flange 805 that .i..4
trapped in place between the front rim 321 of the annular wall 324 and the
inwardly directed annular flarlge 311 of the screw cap 310 creating air
reservoir. 881_ The back end of the trunk at the nozzle connection end 610
of the two-channel spout 800 has an AO@-ring 811, thereon. The AO@-ring
811 engages the inner sealing surtace 331 of the annulafi seat 333, to
prec7.ude t=tie escape of liquid from the liquid passageway 330 into the air
reservoir 881.
[0001241 The auto-closure auto-shutoff spout 800 has a fluid channel
defined by fluid channel 821 the fluid channel 820 and the Sliders fluid
channel 830 and a vapour channel defined by air inlet 850, air channel
851, piston cylinder 860, hole in the bottom of the cylinder 861, Hole
through trunk 822, Jets air cavity 813, Flange airway through the jets
threads 814 which leads to the two channel spout couplers 320 air
reservoir 881.
- 40 -
CA 02574443 2007-01-09
[000125] When the auto-closu7:e auto-shutoff spout 800 is in the open
orientation see Fig 155 the Trunk cores o-ring 841 will have unsealed the
Trunks tip 821 to allow fluid to flow through the spout 800. Liquid within
the elongate flexible liquid delivery hose will then be allowed to flow
through the liquid flow passageway 330 of the two channel coupler 320 into
the ,ict 812, down the length of the Trunk body 820 around the Trunks core
840, out the Trunks tip 820, into the interior of the Slider body 830 past
the exit grate 803 and out of the spout 800 as well, vapor from the inlet
850 wa,ll travel through the air channel 851, into the piston cylinder 860,
down the hole in the bottom of the cylinder 861, down the hole through
trunk 822, into the Jets air cavity 813, through the flanges airway in the
jets threads 814 into the two channel spout couplers 320 air reservoir 881
and through the recovery nipples 341 vapor flow passageway 340 into the
elongate flexible vapour zecovery hosc.
[000126] The two-channel spout 800 has three major cylindrical elements
that move with respect to each other, rkamely casing 823, a slider assembly
832 and a trigger assembly 871. The slidable trigger is gliclably movable
with respect to the trunk between a forward closed position, as best seen
in Figure 14A, and a rearward open position, as best seen in Figure 14B.
1L, -cll1U' "d* 11C3u1U f1bW *6f'ir7nilei t7L1, AiSo Y'ei@X~eGI t6-a5' ttie "
trunk tip opertiing, to dispense liquid to a remote destination (not
specifi.cally shown), either a permanerit or portable container or
receptacle, or the like, such as a portable fuel container, a fuel tank,
- 41
-
CA 02574443 2007-01-09
and so on. The liquid flow channel inlet 815 and the liqui.d flow channeJ.
821 are connected in fluid communication by a fluid channel discussed
above,
f000128] There is an openable and closable valve, as indicated by the
general reference numera7. 101, for permitting and precluding,
respectively, the dispensing of liquid from the dispensing outlet 821 of
the casing 823. The valve 101 preferably comprises a closUre member 840
such as a core for closing and opening the dispensing outlet 821. The
closure member 840 is slidably retained with in the casing 823 for
movement between its open position and its closed position. The valve
101, specifically, the closure member 840, is biased closed by mearis of
a coil. spring, specifically trunk spring 824, which is in compression.
The trunk spring 824, which is coinpressed in between the jet 812 and t-he
closure member 840, provides a force that pushes the closure member 840,
towards the trunk tip 821. The trunk tip 821 is tapered to channel the
flow of liquid to the closure member 840.
[000129] The closure member 840 has an "O"-ring 841 seated in a
cooperating annular groove towards the front of the closure member 840.
When the closure member 840 is in its closed position, as biased by the
trunk spring 824, the "O"-ring 841 seats against the inner annular surface
of the tip of 821 of the casing 823, which is the dispensing outlet of the
casing 823. The dispensing opening 823 is sealed as the force of the
trunk spring 824 compresses the "O~-ring 841 between the ciosuze member
840 and the trunk tip 821 interioz, thereby providing an airtight
leak-proof seal.
- 42 -
CA 02574443 2007-01-09
[000130] When the closure member 840 is in its open position (see
EigU7;e 15B), the "O'l-ring 841 is separated in space relation from the
inner annular surface of the tip 821 of the casing 823, thus permitting
liquid flow between the c].osure member 840 and the dispensing outlet 821.
[000131] The spout 800 further comprises a slider assembly 832 mounted
in sliding relation around the casing 823. The slider assembly 832 is
movable between a forward position, and a rearward position. The forward
position dnd the rearward position of the slider assembly 832 corresponds
to the closed position and the open position, respectively, of the closure
member 840. Accordingly, in order to open the valve generally referred
to by 101, the slider assembly 832 is moved rearwardly, in an indirect
manner, as will be discussed in greater detail subsequently.
[000132) The spout BOO also comprises a receptac.i.e erigaging trigger
means generally referred to by 871 operatively mounted on the casing 823.
More specifically, the receptacle engaging trigger means 871 comprises a
trigger assembly disposed in sliding relation on the s1.i-der assernbly B32.
The receptacle engaging trigger means 871 i_nal,udes an upper hook 833 and
a lowcr hook 834 for engaging the inlet rim of a container B. Each of the
upper hook 833 and the lower hook 834 is corinected to, and preferably
formed ati an integrally molded part of thereceptacle engaging trigger
means 871.
[0001331 The receptacle engaging trigger means 871, and more
specifically the trigger assembly, are movable along the casing 823
between a valve-open position, and a valve-closed position. The trigger
assembly 871 is biased to the forward valve-closed position by means of
- 43 -
CA 02574443 2007-01-09
a trigger return spring 825 mounted in substantially surrounding relation
on a trigger spring guide shaft 826 that extends rearwardly from the upper
hook 833, and also seats in a trigger spring guide 827 on the slider
assembly 832.
[000134) In the valve-closed position (see F.ig. 15A) of the trigger
assembly 871, the closure member 840 is biased closed by the trunk spring
824 such that the "O"-ring 841 seats against the inner annular surface of
the tip of 821 of the casing 823. Accordingly, the valve 101 is closed.
In the valve-open position (see Fig. 15B) of the trigger assembly 8']1, the
closure member 840 is moved to its open position against the biasing of
the trunk spring 824 such that the "O"-ring 841 disposed in space relation
from the inner annular surface that defines the dispensing outlet 821, at
the tip of the casing 823. Accordingly, the valve 101 is open, and liquid
can flow through the casing 823 and out the dispensing outlet 821.
[000135] The spout 800 according to the present invention further
comprises linkage means 872 operatively connecting the receptacle engaging
trigger means 871 and the valve 101. The linkage means generally referred
by 872 has an enabled configuration, and a disabled configuration. In its
enabled configuration, the receptacle engagiryg trigger means 871 and the
valve 101 are operatively connected such that movement o~ the receptacle
engaging trigger means 871 from the valve-closed position to the
valve-open position causes the valve 101 to open. More specifi,cally, as
can be best seen in figures 15C and 15D the linkage means 872 transmits
a rearwardly directed force from the receptacle engaging trigger means
871, specifically the upper hook 834 and the lower hook 833 and the
- 44 -
CA 02574443 2007-01-09
trigger assenibly 871, to the linkage means 872, as will be discussed in
greater detail subsequently.
[000136] In the diaabled oonfiquration, as in Figure 15E the valve 101
is closed such that fluid cannot be dispensed from the dispensing outlet
of the casing 823. Further, the valve 101, is precluded from being
re-opened by movement of the receptacle engaging trigger rneans 871 until
the linkage means 872 is reset to its enabled configuration as in Fig.
15C.
[000137] More specifically, the linkage means 872 comprises a first
linkage member 873 and a second linkage member 874 connected together in
angularly variable relation at a linkage elbow 875, so as together to be
movable between the enabled configuration, and the disabled configuration.
The first linkage member 873 and the second linkage member 874 each have
two parallel identical arms, for the sake of redundancy and strength.
[000138] In the preferred embodiment, as illustrated, the first linkage
member 873 and the second linkage member 874 are connected together in
pivotal relation at the linkage elbow 875. A "C"-shaped axis clasp 876
disposed at the back end of each of the arms of the first linkage member
873 receives and retains in pivotal relation a slider linkage axis shaft
877 disposed that the front end of the second linkage member 874.
[000139] The first linkage ,nember 873 is opera-L-ively mounted Un the
receptacle engaging tri,gger means 871 and the second linkage member 874
is operative].y mounted on the slider assembly 832. Accordingly, the first
linkage member 873 may be referred to as the trigger linkage member And
- 45 -
CA 02574443 2007-01-09
the second linkage member 874 may be referred to as the slider linkage
member. The trigger linkage member 873 has a trigger linkage axis shaft
878 disposed at its front end, which is received and retained in pivoting
relation within a trigger linkage axis shaft clasp 879 that is integrally
formed on the trigger assembly 871.
[000140] The slider linkage member 874 has a"C"-shaped axis clasp 882
disposed at the back end of each of the arms of the silder linkage member
874, which is received and retained in pivot.i.ng relation a slider linkage
axis shaft 883 that is integrally formed on the slider assembly 832. When
assembled together, the trigger linkage member 873 and the slider linkage
member 874 are spring biased to the enabled configuration by means of a
reed spring 883 corineoted to the trigger linkage member 873. Preferably,
the reed spring 883 is integrally formed as part of the trigger linkage
member 873.
[000141] The spout 800 further comprises a deactivation means for
changing the linkage means 872 from the enabled configuration to the
disabled configuration. The deactivation means includes a venturi means
885 disposed within the casing 823. Mox'e specifically, the venture means
comprises a venturi that is disposed at the tip of the jet 812. As liquid
leaves the jet tip 886, which is an integral part of the venturi, it will
expand becoming turbulent. The expansion and the turbulence of the flow
will cause the liquid to collect and mix with air and that air will exit
the spout 8D0 with the liquid being dispensed through ~he dispensing
outlet 138. The liquid flowing through the casing 823 will create a
negative pressure within the trunk body 823 which will continually draws
air into the trunk body 823 through airway 822 as the liquid is flowing.
- 46 -
CA 02574443 2007-01-09
This negative pressure is the force which is used to ehange the linkage
means 872 from its enabled configuration to its disabled configuration,
as will be explained in gz=eater detail subsequently.
(000142] The deactivation means also comprises an air conduit having an
air inlet 850 at a front end thereof and an air outlet 886. When the
spout 800 is in the open orientation, the air conduit is in fluid
communicatiori with the fluid flow channel 820, to interact with the
venturi means 895. More specifically, the air conduit is in fluid
communication with the fluid flow channel 820 via an air hole 861 in the
slider assembly 832 and an expandable and retractable chamber 860 between
the air conduit 851 and the air hole 861. The expandable and retractable
chamber 860 comprises a bellows 887. Arms 888 extend laterally outwardly
from opposite sides of the bellows 88'7, so as to be able to engage the
linkage elbows 875 on each side of the linkage means 872.
[000143] The air conduit 851 is in fluid communication with the fluid
flow channel 820, as described above, to permit the drawing of air into
the fluid flow channel 820 through the air inlet 850 when the air pressure
is reduced by the venturi means 885, but inhibiting the flow of air into
the fluid flow channel 820 when the liquid level of dispensed liquid
reaches the air inlet 850 and blocks access of air into the air inlet 850.
When the airflow into the fluid flow channel 820 is inhibited, the air
pressure within the expandable and retractable chamber 860 or cylinder
produces a downward force on the bellows 887, thus lowering the bellows
arms 888 from a raised position, to a lowered position. As the bellows
887 moves downwardly, the bellows arms $88 push on the trigger linkage
member 873 and the slider linkage member 874 of the linkage means 872 at
- 47 -
CA 02574443 2007-01-09
the linkage elbow 875. The triggez linkage member 873 and the slider
linkage member 874 go from their enabled configuration as in Figure 15C,
past an over-the-cen~er point, and essentially fall to their disabled
configuration as in Figure 15E. In this manner, the deactivation means has
caused the linkage means 872 to change to the disabled configuration,
which in turn causes the valve 101 to close, thus precluding the delivery
of liquid from the dispensing outlet 821 of the casing 823.
[0O0144] In a more general sense, it cdn readily be seen that the
deactivation means is an auto-shutoff feature for changing the linkage
means 872 from the enabled configuration to the disabled configuration,
in response to detecting the proximity of dispensed liquid in a
receptacle, to thereby allow the valve 101 to close, thua precluding the
delivery of liquid from th dispensing outlet 821 of the casing 823.
[0001453 The two-channel spout further comprises a vapour flow channel
within the main body. The vapour flow channel has a vapour flow channel
inlet 850 and a vapour flow channel outlet 850a. The liquid flow channel
within the main body has liquid flow inlet 815and liquid flow oiitlet 821.
.Uhe liquid flow channel and the vapour flow channel are separate and
distxnct one from the other, and thereby permit liquid Within the liquid
flow channel and vapour within the vapour flow channel to be kept separate
and distinct one from the other.
[0001461 In use, when the slidable trigger assembly is in its rorward
closed position, as best seer; in Figure 15A, the Rio@-ring 841 seals
against the tip 821 of the trunk, to thereby close off the spout 800, as
merrtioned above. When the slidable trigger is in its rea,rward open
- 48 -
CA 02574443 2007-01-09
position, as best seen in Figure 15B, the AO@-ring 841 is removed from
sealing engagement against the tip 821 of the trunk. Accordirig1y, liquid
can flow through the fluid channel 812 past the fluid flow valve, and out
the forward end of the -two-channeJ, spout 600. rurther, vapor is suctioned
into the vapor channel inlet 850, through the vapor channel 851, through
apertures 861 and 822 and into the air cavity 813 around the jet, then
through the flange airway through the jets threads 814 which leads to tho
two channel spout couplers 320 and into the air cavity 881 between the
trunk and coupler, whereat it is suctioned into the vapour in'let. 16 of the
elongate flexible vapour recovery hose 12, and to the portable container
(not specifically shown).
[000147] Reference will now be made to Figures 16A throiagh 16C, which
show the second preferred embodiment nozzie body assembly according to the
present invention, as indiGated by the reference numeral 400. The second
preferred ecnbodiment nozzle body assembly is similar to the first
preferred embodiment nozzle body assembly shown in Figure 1.1A, but further
comprises a valve means 470 operatively connected to the two-channel spout
coupler 420 for controlling the flow of liquid into the two-channel spout
coupler 420. The valve means comprises a flow control valve 470
operatively connected in fluid communication to the two-channe7, spout
coupler 420. The elongate flexible liquid delivery hose 11 is operatively
connected in f'luid communication to the flow control valve 470. A tri,gqer
450 is pivotally mounted on the nozzle body 400 via a trigger pivot shaft
451, and is used to open and close the control valve 470 via a control arm
471.
- 49 -
CA 02574443 2007-01-09
[000148] Figure 16C shows a fourth preferx-ed embodiment two-channel
spout coupler 460 that is similar to the third preferred embodiment
two-channe], spout coupler 420, but additionally includes a liquid flow
check valve 480 and a vapor flow check valve 32.
[000149] Re.ference will riow be made to Figures 17A, 17B and 17C.
Figure 17A shows the second preferred embodiment nozzle body assembly 400,
with the fourth preferred embodiment spout 600 attached thereto. Figure
17B shows the second preferred embodiment nozzle body assembly 400, with
the fifth preferred embodiment spout 700 attached theroto. Figure 17C
shows the second preferred embodiment nozzle body assembly 400, with the
si.xth preferred embodiment spout 800 attached thereto.
[000150] Reference will now be made to E'igure 18, which show the third
preferred embodiment nozzle body assembly according to the present
invention, as indicated by the reference numeral 500. The third preferred
embodiment nozzle body assembly is similar to the first pXeferred
embodiment nozzle body assembly shown in Figure 11A, but further comprises
a pump means 580 operatively connected to the two-channel spout coupler
420 for causirig the flow of liquid into the two-channel spout coupler 420.
The pump means comprises a bellows pump 470 operatively connected in fluid
communication to the two-channel spout coupler 420. The elongate flexible
liquid delivery hose 11 is operatively connected in fl.uid communication
to the bellows pump 470. A trigger 550 is pivotally mounted on the nozzle
bodx 350 va.a a trigger pivdt shaft 551, and is used to actuate the bellows
pump 580.
- 50 -
CA 02574443 2007-01-09
[000151] Reference wil]. now be made to Figures 19A, 19B and 19C.
Figure 19A stivws the third preferred embodiment nozzle body assembly 500,
with the fourth preferred embodiment spout 600 attached thereto. Figure
195 shows the third preferred embodiment nozzle body assembly 500, with
the fifth preferred etnbodimenti spout 700 attached thereto. Figure 19C
shows the third eighth preferred embodiment nozzle body assembly 500, with
the sixth preferred embodiment spout 800 attached thereto.
(000152] As can be ynderstood from the above description and from the
accompanying drawings, the present invention provides a liquid delivery
system for supplying liquid from a portable container to at least one
selected remote destination and removing vapour from said at least one
selected remote destination, which liquid delivery system is not Zimited
to use where it is raised above the level of the receiving container, and
tilted so that liquid flows from the da.spensing nozzle into the receiving
container, which liquid delivery system can be used in a more convenient
manner such as where liquids are pumped from one computer container to
another, and which liquid delivery system can be used with or without a
pump, all of which features are unknown in the prlor art.
[000153] Other variations of the above principles will be apparent to
those who are knowledgeable in the field of the invention, and such
variations are contidered to be within the scope of the present invention.
Further, other modifications and alterations may be used ira the design and
manufacture of the liquid delivery system of the present invention without
departing from the spirit and scope of the accompanying claims.
- 51 -
