Canadian Patents Database / Patent 2514817 Summary

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(12) Patent Application: (11) CA 2514817
(54) English Title: RECIPROCATING DOUBLE ACTING PUMP
(54) French Title: POMPE ALTERNATIVE A DOUBLE EFFET
(51) International Patent Classification (IPC):
  • F04B 5/02 (2006.01)
  • F04B 17/00 (2006.01)
  • F04B 49/06 (2006.01)
  • F04B 53/16 (2006.01)
(72) Inventors :
  • ABOU-RAPHAEL, AFIF (Canada)
(73) Owners :
  • ABOU-RAPHAEL, AFIF (Canada)
(71) Applicants :
  • ABOU-RAPHAEL, AFIF (Canada)
(74) Agent: NA
(74) Associate agent: NA
(45) Issued:
(22) Filed Date: 2005-08-11
(41) Open to Public Inspection: 2007-02-11
(30) Availability of licence: N/A
(30) Language of filing: English

English Abstract



This invention relates to the construction, of a double acting linear
compressor of the type
described in Canadian patent no 2473077 that can be used as an air compressor
or as a liquid
pump. Said compressor is operated by a screw of a screw jack that needs a
fairly little torque in
order to compress air when it is used as an air compressor, or to pump liquid
as water, oil or the
like when it is used as a liquid pump. Said screw, communicates a linear and
reciprocating
movement to all pistons of said reciprocating double acting pump the subject
of the present
invention, through cables and pulley systems in addition, to be able to pump
especially oil from
deep wells. Said double acting cable oil pump uses less energy for the same
pumped quantity of
oil, comparing with conventional cable oil pump that are not double acting.


Note: Claims are shown in the official language in which they were submitted.




CLAIMS
The embodiments of the invention in which an exclusive property or privilege
is claimed are
defined as follows:
1- Reciprocating double acting pump, including
a solid frame, that supports the strain of any force caused by a pressure of
compressed fluid
counteracting on a screw of a screw jack through pistons that are attached to
said screw, during the
compression of said fluid in all cylinders of said reciprocating double acting
pump;
said cylinders in which said double acting pistons are moved alternatively by
said screw of said
screw jack of said reciprocating double acting pump, in order to suck-in fluid
into their respective
cylinders, then to compress and finally to exhaust said fluid, compressed at a
predetermined
discharge pressure toward a storage facility;
inlet and outlet valves placed on both ends of each cylinder of said
reciprocating double acting
pump, in which said fluid is admitted and expelled, two times in every period;
said screw jack, to overcome resistant forces as the one developed inside the
cylinders of the pump
and counteracting on all of the pistons during compression cycle;
a mechanical, electrical, hydraulic, or pneumatic motor to provide a torque,
and motion to said
screw of the said screw jack,
electrical contactors needed to operate circuit breakers that are used to
control the motor or a
gearbox of said screw jack;
2- Reciprocating double acting pump, as claimed in claim 1 and characterized
by:
said screw, that is driven by a free turning gear-nut located in a boring
machined in a brace affixed
to said frame of said pump.
24




3- Reciprocating double acting pump, as claimed in claim 1 and characterized
by:
a pinion combined to a gear box to give a linear and reciprocating movement to
said screw of said
screw jack, through said free turning gear-nut, in order to control the
frequency of cycles of
compression that determine the flow of compressed air of said pump the subject
of the present
invention.
4- Reciprocating double acting pump, as claimed in claim 1 and characterized
by:
a casing full of oil to lubricate said screw and all gears of said screw jack.
5- Reciprocating double acting pump, as claimed in claim 1 and characterized
by:
a tongue, affixed to said screw of said screw jack, that is used to stop and
restart the motor of said
screw jack at the end of every exhaust stroke of compressed air of every
cycle, through the
electrical contactors and the circuit breakers.
6- Reciprocating double acting pump, as claimed in claim 1 and characterized
by:
the contactors that are distant one from the other, exactly the same distance
of a run that any one of
the said pistons of said pump, travels inside its respective cylinder from the
beginning and the end
of said compression cycle of any cycle.
7- Reciprocating double acting pump, as claimed in claim 1 and characterized
by:
a linear and reciprocating movement of said screw of said screw jack, that
allows said pump to be
build with one, two or even with multiple cylinders according to the flow of
fluid needed.
8- Reciprocating double acting pump, as claimed in claim 1 and characterized
by:
a small torque that is needed to push-in or to pullback said screw of said
screw jack of said
reciprocating double acting pump the subject of the present invention.
9- Reciprocating double acting pump, as claimed in claim 1 and characterized
by:
the use of an undetermined number of cylinders in order to increase the flow
of said pump, that are
installed on one or on both ends of said screw of said screw jack that
operates said pistons in their
respective cylinders.




10- Reciprocating double acting pump, as claimed in claim 1 and 9, and
characterized by:
a functioning in a parallel way of all said cylinders.

11- Reciprocating double acting pump, as claimed in claim and characterized
by:
a diameter that is the same or different, for said cylinders of said pump.

12- Reciprocating double acting pump, as claimed in claim 1 and characterized
by:
the same length of each of the cylinders of the said pump, that is equal to
the total run located
between the beginning and the end of the compression cycle.

13- Reciprocating double acting pump, as claimed in claim 1 and characterized
by:
pistons that are installed in line and attached together in a way that, the
first piston adjacent to the
said screw, receives the force and the linear and reciprocating movement, in
order to transmit them
directly and at the same time to the other pistons of the other cylinders.

14- Reciprocating double acting pump, as claimed in claim 1 and characterized
by:
intermediary coupling shafts and couplings that must be installed between
every two adjacent
pistons of each side of the screw, in order to operate them all at once in a
parallel way as if they
are only one piston.

15- Reciprocating double acting pump, as claimed in claim 1 and characterized
by:
cylinders that are installed side by side, and their respective pistons are
operated directly by the
screw of the screw jack.

16- Reciprocating double acting pump, as claimed in claim 1 and characterized
by:
braces used to attach through connections, all pistons of all cylinders that
are placed in rows one
beside the other on every end of the screw of the screw jack, in a way to have
said screw, pushing-
in or pulling-back directly on all of the pistons.

17- Reciprocating double acting pump, as claimed in claim 1 and characterized
by:
the use of said pump as a pump to be used to pump water, oil or the like.



26




18- Reciprocating double acting pump as claimed in claim 1 and characterized
by:
cables that are used to communicate the torque and the alternative movement to
said pistons of
said reciprocating double acting pump, especially in very deep oil wells.

19- Reciprocating double acting pump, as claimed in claim 18 and characterized
by:
pulleys combined to said cables in order to communicate a continuous and
alternative movement
to said piston or pistons of said double acting pump during its functioning.

20- Reciprocating double acting pump, as claimed in claim 1 and characterized
by:
flexible hoses that are used to replace the pistons of said reciprocating
double acting compressor
when it is used as air compressor or liquid pump.

21- Reciprocating double acting pump, as claimed in claim 20 and characterized
by:
flexible hoses made out of clothe or the like that replace said cylinder or
cylinders of said
reciprocating double acting compressor when it is used as an air compressor or
a liquid pump.

22- Reciprocating double acting pump, as claimed in claim 20 and characterized
by:
braces that replace said piston or pistons of said reciprocating double acting
compressor and
operate said flexible hoses by said screw of said screw jack during the
functioning of said air
compressor or said liquid pump.

23- Reciprocating double acting pump, as claimed in claim 20 and characterized
by:
a stationary head for every said flexible hose that hold the said needed inlet
and outlet valves for
the good functioning of said double acting air compressor or said double
acting pump , and on
which is affixed one end of said flexible hose.

24- Reciprocating double acting pump, as claimed in claim 20 and characterized
by:
a protrusion that is a part of said brace and on which the other end of said
flexible hose is affixed.
Said protrusion is used to hold said flexible hose during every compression
cycle while
eliminating almost all of a dead volume that is formed by said flexible hose
at the end of said
compression cycle.



27




25- Reciprocating double acting pump, as claimed in claim 20 and characterized
by:
a well predetermined quantity of liquid as water, oil or the like that is
placed permanently inside
said flexible hose. This liquid is used to evacuate all of the remaining
compressed air out of said
reciprocating double acting compressor at the final end of every compression
cycle, aided by said
protrusion when said compressor is used as an air compressor.

26- Reciprocating double acting pump, as claimed in claim 20 and characterized
by:
a wire or the like that is used to keep a round shape for said flexible hose
while preventing said
flexible hose from collapsing during admission cycles of said reciprocating
double acting
compressor.

27- Reciprocating double acting pump, as claimed in claim 20 and characterized
by:
a support that is used to hold said flexible hose in a straight line during
the functioning of this type
of reciprocating double acting compressor.



28

Note: Descriptions are shown in the official language in which they were submitted.

CA 02514817 2005-08-11
Reciprocating double acting pump.
This invention relates to the construction of a reciprocating double acting
pump according mainly
to the methods of the Canadian patent no 2473077.
The prior art includes cable linear pumps that are not double acting and where
the time needed for
their pistons to go back to the pumping position of next cycle is not
productive. More over In these
pumps, powerful motors are needed in order to develop the necessary torque
needed to pump
water, oil or the like, depending on the heads that can be very high
especially in oil wells or on the
needed discharge pressure.
The subject of this invention is a reciprocating double acting linear
compressor of the type
described in Canadian patent no 2473077 that can be used as an air compressor
or as a liquid
pump. Said compressor is operated by a screw of a screw jack that needs a
fairly little torque in
order to compress air when it is used as an air compressor, or to pump liquid
as water, oil or the
like when it is used as a liquid pump. Said screw, communicates a linear and
reciprocating
movement to all pistons of said reciprocating double acting linear pump the
subject of the present
invention, through cables and pulley systems in addition, to be able to pump
especially oil from
deep wells. Said reciprocating double acting linear cable oil pump uses less
energy for the same
pumped quantity of oil, comparing with conventional linear cable oil pump that
are not double
acting. The time needed for the pistons to go back to the pumping position of
the next cycle, is not
productive in conventional linear cable oil pump, while it is productive in
this reciprocating double
acting linear cable oil pump the subject of the present invention.
My patent no CA 2473077 disclose the embodiment and the functioning of a
reciprocating
double acting air compressor, and the following is the embodiment of a
reciprocating double
acting liquid pump that is the subject of the present invention, including.
1- A frame, that supports large forces caused by the pressure of pumped
liquids that
counteract on the screw of the screw jack, through the piston or the pistons
that are attached to it,
during the operation of said reciprocating double acting pump.

CA 02514817 2005-08-11
2- A screw jack, used to overcome large resistant forces as the one developed
by the pressure
of the pumped liquid on the total surface of the piston or all the pistons of
the same pump that are
pumping at the same time during the same cycle. Said screw jack transmits the
force and the linear
and reciprocating movement of its screw to all said pistons of said
reciprocating double acting
pump, while pushing-in or pulling-back, or pushing-in and pulling-back at the
same time said
pistons. Liquid is admitted and compressed inside the respective cylinders of
the pistons, two
times by period according to the configuration of said reciprocating double
acting pump.
Said screw jack includes:
A- A screw that is driven by a free turning gear-nut located in a boring
machined in a
brace affixed to the main frame described above which is capable of sustaining
big stress.
This stress is caused by the force of the pressure of the pumped liquid
depending on the
heads that can be very high especially in oil wells or on the discharge
pressure when said
double acting pump is used as a pressure pump. Said force is the result of the
pressure that
exerts on the surface of all the pistons of said reciprocating double acting
pump during its
operation, while A fairly little torque is needed to push-in or to pull-back
said pistons
inside their respective cylinders. Said screw is set to move reciprocally in a
straight line,
either right and left if the pump works horizontally, or up and down if the
pump works
vertically like in water or oil wells.
B- A pinion that is used to operate said free-turning gear-nut that can be
combined to a
gearbox in order to provide a controlled linear and reciprocating movement to
the screw of
the screw j ack.
C- A mechanical, electrical, hydraulic, or pneumatic motor to provide the
needed
torque and motion to said screw of said screw jack. In the example of the
present
application the chosen motor is electrical.
D- A casing full of oil to lubricate the screw and all of the gears of the
screw jack.
E- Electrical contactors needed to operate circuit breakers that are used to
control the
motor or the gearbox of said screw jack at the end of every cycle in order to
alternate the
2

CA 02514817 2005-08-11
rotation of the gear-nut that can be clockwise or counter clockwise. The
alternation of the
rotation of the gear-nut gives to the screw of the screw jack an alternative
movement that
enhances at the same time admission by one side and compression by the other
side of
every piston in its respective cylinder.
F- A tongue that is affixed to said screw of said screw jack and used to
control the
rotation of said motor or said gear box of said screw jack through said
electrical contactors.
The direction of rotation of said gear-nut changes at the end of the
compression stroke of
every cycle. In addition said electrical contactors are distant one from the
other, exactly the
same distance of the run that any one of the pistons travels inside its
respective cylinder,
from the beginning to the end of the compression cycle.
3- Cylinders, in which double acting pistons are moved alternatively by said
screw of said
screw jack, in order to pump water, oil or the like.
4- Inlet and outlet valves placed on both ends of each cylinder of said
reciprocating double
actW g pump.
5- Coupling shaft that is attached to the bottom of a piston of the pump in a
way to operate the
same piston alternatively when said piston is pulled through its rod or
through its coupling shaft by
a cable. When a pump has more than one piston placed one after the other, the
coupling shaft is
used to operate all of the pistons like if they are only one piston.
6- Said reciprocating double acting pump can be built with one cylinder, but
the linear and
reciprocating movement of its screw of the screw jack, allows us to install
cylinders on one or on
both ends of said screw according to the configurations of every pump. The
number of cylinders is
calculated according to the needed flow of liquid. In addition all of the
pistons have the same
length, which is exactly equal to the same distance of the run that said screw
of said screw jack,
travels from the beginning to the end of the compression cycle. The cylinders
of the same pump
can have Same or different diameters, while all of these cylinders are set to
operate all the time in
a parallel way.
3

CA 02514817 2005-08-11
7- The pistons of said pump are joined together and moved like only one piston
by the linear
and reciprocating movement that the screw of the screw jack transmit to them
without the need of
any crank or crank handle, through:
A- Couplings and intermediary coupling shafts that are installed between every
two
pistons of every two cylinders that are placed one after the other.
B- Brace attached to all pistons of all cylinders that are placed side by side
on every
end of the screw of the screw jack through connections. Said brace is attached
to said
pistons in a way to have the screw pushing-in or pulling-back all the pistons
directly
without the need of any coupling shafts of the sort described above.
The pumping of liquid in this reciprocating double acting pump the subject of
the present
invention is done accordingly to the following:
With a pump having one cylinder:
1- before running the pump, all of its components have to be in place:
2- Let's consider that liquid exists already inside the cylinder of the pump,
and the
piston is in the beginning of its run of this cycle which is equal to the
depth of its respective
cylinder.
3- The tongue that is affixed to the screw of the screw jack of said
reciprocating
double acting pump sets on a first electrical contactor in order to set on a
first circuit
breaker. Then the electric motor starts turning in the right direction needed
to push-in said
piston in its respective cylinder through the screw of the screw jack that is
affixed to it.
4- The gear-nut starts turning freely in its bore of the brace
that is a part of the main frame when it is operated by the above mentioned
motor through
the pinion that can be combined to a gear box. The rotation of the gear-nut in
one direction
or in the other, communicates a linear and reciprocating movement to the screw
of the
4

CA 02514817 2005-08-11
screw jack. In addition said screw of said screw jack transmits a linear and
reciprocating
movement with the needed torque to the piston of said reciprocating double
acting pump, in
order to compress and push the liquid out of the cylinder toward a pipe line.
5- As the pump is reciprocal and double acting, it means that, while
compressing
liquid in the cylinder by one side of the piston, fresh liquid will be sucked-
in by the other
side of the same piston in the same cylinder.
6- When the piston arrives at the end of its run, at this moment all of the
liquid of that
cycle is compressed and expelled to the pipe line, while it has sucked-in, all
the needed
fresh liquid to fill up the same cylinder, but by its other side.
7- At the end of the first cycle, the rotation of the gear-nut changes when
the gearbox
is controlled through the above-mentioned tongue that operates a second
electrical
contactor. Said screw of said screw jack is than set to move in the other
direction in order
to pullback the same piston in the same cylinder.
8- The same way, the gear-nut starts turning freely in the other direction
allowing said
screw of said screw jack to pull the same piston in the other direction that
starts another
cycle. The imprisoned liquid is then compressed in the same cylinder by the
other side of
the same piston, and fresh liquid is admitted in the same cylinder by the
other side of the
same piston that was compressing during the previous cycle.
9- At the end of its new run which is the same run traveled in the other
direction for
the previous cycle, the piston finishes to push out of the cylinders the new
batch of liquid.
In addition and at the same time fresh liquid is sucked-in by the other side
of the same
piston in order to fill up again the same cylinder for another new cycle of
compression
while the pumping is in progress.
10- Instead of having the motor stopping and restarting in the other direction
every time
the piston arrives at the end of every cycle, the screw jack can be equipped
with an
automatic planetary gearbox with electrical commands. Said automatic planetary
gearbox
5

CA 02514817 2005-08-11
alternates the rotation of the gear-nut in order to alternate the movement of
the screw of the
screw jack. The alternative movement of said screw is than transmitted to the
pistons of
said reciprocating double acting pump, while the motor of the screw jack keeps
turning in
the same direction.
11- The screw and the gears of the screw jack are kept lubricated by the oil,
which is in
the casing of the screw jack.
The other aspects of this invention:
A- A pump with two cylinders installed one cylinder on each end of the screw
of the
screw jack; where said screw operates the two pistons as follow:
1- The two cylinders of the same pump can have the same or different
diameters, but
both of them must have the same length. The length of every cylinder is equal
to the total
run (L) of the screw of the screw jack traveled between the beginning and the
end of the
same compression stroke of the same cycle that is equal to the length of every
piston. All
of the pistons of the same pump travel one distance at the same time in one
direction or in
the other. This distance is equal to the same run (L) of the screw of the
screw jack traveled
between the beginning and the end of the same compression stroke of the same
cycle. The
functioning of these two cylinders is done in a parallel way that means; when
there is
admission in one cylinder on one side of its piston, it will be compression in
the same
cylinder, but by the other side of the same piston. Exactly the same thing
will happen in
parallel and at the same time in the other cylinder of the same pump, and the
operation will
be for both of them; admission with admission, and compression with
compression.
2- the pistons of the same pump are attached one on each end of the screw of
the
screw jack that transmits its force and its motion with its direction to both
pistons at the same
time while operating them in parallel as described above. Hence, the distance
that the screw
travels in one direction or in the other does not change for one or for two
pistons. The power
needed for the operation of said pump is proportional to the force to overcome
and which is
exerting at the same time on the total surface of both pistons, by the
pressure of the liquid
6

CA 02514817 2005-08-11
inside the two respective cylinders of the pump.
B- A multi-cylinder pump that has a number of cylinders installed on one or
two sides of
the same screw jack, where said screw operates all of the pistons as follow:
1- the screw of the screw jack will be made like the one of a pump with one
cylinder,
if the cylinders with their pistons are installed on one side of the screw of
the screw jack. Or
like the one of a pump with two cylinders, if the cylinders with their pistons
are installed on
both sides of the screw of the screw jack.
2- the pistons on each side of the pump are attached together in a way that
the first
pistons adjacent to the screw receive directly the force and the movement of
the screw. The
force and the movement of the screw is then transmitted to the other pistons
of the other
cylinders, through intermediary coupling shafts and couplings that have to be
installed
between every two adjacent pistons on each side. This configuration favors a
parallel
functioning for all of the cylinders and their pistons as described above for
the functioning
of a pump with two cylinders. Hence, the distance traveled by the screw in one
direction or
in the other does not change like for one or for two cylinders. The power
needed for the
operation of the pump is proportional to the force to overcome that is
exerting at the same
time on the total surface of all the pistons, by the pressure of the liquid
inside the cylinders
of the same pump.
3- The pistons and the cylinders of the same multi-cylinder pump must have the
same
length for all of the pistons, but said cylinders can have the same or
different diameters, the
same way as for the cylinders and the pistons of a pump with two cylinders.
However the use
of intermediary coupling shafts and couplings between every two adjacent
pistons of each
side is mandatory, to permit to the same screw of the same screw jack to
operate them
together at once like if they are only one piston.
4- the use of an undetermined number of cylinders in order to increase the
flow of said
pump. Said cylinders can be installed on one or two ends of the screw that
operates the
pistons in their respective cylinders.
7

CA 02514817 2005-08-11
C- A double acting cable pump with one or multiple cylinders that can be used
to pump
especially oil from deep wells. Every pump of this type is configured to fit
and be affixed
inside a well at a low point where the pumping is planed to occur. An
appropriate screw jack
has to be installed outside of the well, but the torque and the alternative
movement of its
screw are transmitted to the pistons of said pump according to the following:
1- Through a first cable that is attached from one end to the piston's rod of
the top
cylinder, and from the other end to a coupling bracket that attaches the first
cable to the
screw of the screw jack.
2- Through a second cable that is attached from one end to a coupling shaft
that in turn
is attached to the bottom side of the last piston of the last cylinder. The
other end of the
second cable is attached too to the same coupling bracket that attaches the
first cable to the
screw of the screw jack.
3- Through a first system of pulleys that is affixed to a frame affixed in
turn to the
main frame of the screw jack. This system of pulleys allows the first cable to
loop around it
in a way and in order to pull upwardly the piston or the pistons of said pump
when the
cable is pulled downwardly by the screw of the screw jack.
4- through a second system of pulleys that is affixed to another frame affixed
in turn to
the outside bottom of the lower cylinder of the pump. This second system of
pulleys is
located in a compartment located in turn between the lower cylinder and the
bottom end of
said double acting cable pump that holds one-way valves which in turn let in,
fresh oil
during the functioning of said double acting cable pump. This system of
pulleys allows the
second cable to loop around it in a way and in order to pull downwardly the
piston or the
pistons of said pump when the cable is pulled upwardly by the same screw of
the same
screw jack.
The upper-end of said double acting cable pump, holds one-way valves and it is
designed to have a
sealing device between lower and higher-pressure zones of said well, as well
it is designed to have
8

CA 02514817 2005-08-11
a fixing device that holds the pump in place at a chosen depth in said well.
In addition the lower-
end of said double acting cable pump, is designed to have another sealing and
fixing devices in
order to seal between the pump and the oil of the well, as well to help the
upper-fixing device in
holding said cable pump in place at the desired depth. However this double
acting cable pump that
can be used to pump effectively oil from very deep oil wells can have any
needed number of
cylinders in order to pump the needed flow of oil at a condition to be
equipped with an appropriate
screw jack and a motor that can develop the needed torque in order to pump the
needed flow from
the actual depth to the servicing pipeline. More over appropriate materials
are needed too for the
construction of said pump in order to support the high hydrostatic pressure of
the column of oil.
Note: The above mentioned functioning of said reciprocating double acting
cable pump, is for a
pump that has the screw of its screw jack attached to said first and second
cables through said
coupling bracket between the above mentioned two system of pulleys. When the
screw is attached
to said first and said second cables between the upper-system of pulleys and
the piston's rod of the
top piston, the movement of said piston or pistons will be upwardly when the
screw is moving
upwardly, and downwardly when said screw is moving downwardly. In addition the
needed torque
to operate said screw in order to overcome the force that is developed inside
said cylinders of said
reciprocating double acting pump due to the liquid's hydrostatic pressure or
to the needed liquid's
discharge pressure is calculated according to the following formula:
Torque (mN) _ [The force to overcome (in Newton) x The screw pitch (In metre)]
/ (Divided by)
[2xPior3.1416]
D- A reciprocating double acting compressor having its cylinders made out of
flexible
hoses that can be used as an air compressor or as a liquid pump, including:
1- Flexible hoses made out of clothe or the like that replace said cylinder or
cylinders.
2- Braces that replace said piston or pistons and operated by said screw of
said screw
jack while they are used to operate said flexible hoses during the functioning
of said air
compressor or said liquid pump.
3- A stationary head for every flexible hose that hold the needed inlet and
outlet
9

CA 02514817 2005-08-11
valves for the good functioning of said compressor, and on which is affixed
one end of said
flexible hose.
4- A protrusion that is a part of the above-mentioned brace and on which the
other end
of said flexible hose is affixed. Said protrusion is used to hold the flexible
hose during
every compression cycle while eliminating almost all of the dead volume that
is formed by
said flexible hose at the end of every compression cycle.
5- A well predetermined quantity of liquid as water, oil or the like that is
placed
permanently inside said flexible hose. This liquid is used to evacuate all of
the remaining
compressed air out of said flexible hose at the final end of its compression
cycle, aided by
the above mentioned protrusion when said compressor is used as an air
compressor.
6- A wire or the like that is used to keep a round shape for said flexible
hose while
preventing said flexible hose from collapsing during admission cycles of said
reciprocating
double acting compressor.
7- a support that is used to hold said flexible hose in a straight line during
the
functioning of this type of reciprocating double acting compressor.
To those skilled in the art to which the invention relates, may changes in
construction and widely
differing embodiments and applications of the invention will suggest
themselves without departing
from the scope of the invention as defined in the appended claims. The
disclosures and the
descriptions herein are purely illustrative and are not intended to be in any
sense limiting.
For a better understanding of this invention and to facilitate its
examination, it is represented in the
following 10 Figures.

CA 02514817 2005-08-11
Brief description of the drawings:
1- Figure 1 a front cross-sectional view of a reciprocating double acting
linear pump having
one cylinder and showing compression cycle to the right.
2- Figure 1 a front cross-sectional view of a reciprocating double acting
linear pump having
one cylinder and showing compression cycle to the left.
3- Figure 3 a top view of a reciprocating double acting cable oil pump ready
to pump oil from
an oil well.
4- Figure 4 a cross sectional view along line E-E of figure 3.
5- Figure 5 a cross sectional view along line A-A of figure 4.
6- Figure 6 a cross sectional view along line B-B of figure 4.
7- Figure 7 a cross sectional view along line C-C of figure 4
8- Figure 8 a cross sectional view along line D-D of figure 4.
9- Figure 9 a top view of a reciprocating double acting air compressor having
its cylinders
made out of flexible hoses.
10- Figure 10 a front cross-sectional view along line F-F of figure 9.
n

CA 02514817 2005-08-11
When considered with the description herein, the characteristics of the
invention are apparent from
the accompanying drawings, which exemplify an embodiment of the invention for
purposes of
illustration only, and in which
Figure 1 is a front cross-sectional view of a reciprocating double acting pump
having one cylinder
and showing a compression cycle to the right, including the cylinder l, the
piston 2, the screw 3 of
the screw jack 3-A, the free turning gear-nut 4 sitting in the bore 6-A of the
brace 6 of the frame
21 which is used to operate and alternate the movement of the screw 3 of the
screw jack 3-A, the
motor 11 that is used to operate the gear-nut 4 through the gearbox 11-A, the
shaft 26 and the
pinion 5, the tongue 7 that travels with the screw 3 of the screw jack 3-A the
same distance that the
piston 2 travels between the beginning and the end of the compression stroke
of every cycle of the
pump, to the right to operate the electrical contactor 8 at the end of every
cycle to the right, and to
the left to operate the electrical contactor 9 at the end of every cycle to
the left in order to rotate the
gear-nut 4 in one direction or in the other through the control of said motor
11 or said gearbox 11-
A that gives a linear and a reciprocating movement to the screw 3 of the screw
jack 3-A. Figure 1
includes in addition the inlet valve 15 with the inlet pipe 25, and the outlet
valve 12 with the outlet
pipe 22 of cylinder 1 on the left side 46 of the piston 2, the inlet valve 24
with the inlet pipe 24 and
the outlet valve 13 with the outlet pipe 23 of cylinder 1 on the right side 47
of the piston 2, and the
casing 19 that holds the oil 20 in order to lubricate the screw 3 and all of
the gears of the screw
jack 3-A.
Figure 2 is a front cross-sectional view of a reciprocating double acting pump
having one cylinder,
and showing a compression cycle to the left, including the cylinder l, the
piston 2, the screw 3 of
the screw jack 3-A, the free turning gear-nut 4 sitting in the bore 6-A of the
brace 6 of the frame
21 which is used to operate and alternate the movement of the screw 3 of the
screw jack 3-A, the
motor 11 that is used to operate the gear-nut 4 through the gearbox 11-A, the
shaft 26 and the
pinion 5, the tongue 7 that travels with the screw 3 of the screw jack 3-A the
same distance that the
piston 2 travels between the beginning and the end of the compression stroke
of every cycle of the
pump, to the right to operate the electrical contactor 8 at the end of every
cycle to the right, and to
the left to operate the electrical contactor 9 at the end of every cycle to
the left in order to rotate the
gear-nut 4 in one direction or in the other through the control of said motor
11 or said gearbox 11-
A that gives a linear and a reciprocating movement to the screw 3 of the screw
jack 3-A. Figure 2
12

CA 02514817 2005-08-11
includes in addition the inlet valve 15 with the inlet pipe 25, and the outlet
valve 12 with the outlet
pipe 22 of cylinder 1 on the left side 46 of the piston 2, the inlet valve 24
with the inlet pipe 24 and
the outlet valve 13 with the outlet pipe 23 of cylinder 1 on the right side 47
of the piston 2, and the
casing 19 that holds the oil 20 in order to lubricate the screw 3 and all of
the gears of the screw
j ack 3-A.
Figure 3 is a top view of a reciprocating double acting cable oil pump ready
to pump oil from an
oil well, showing the oil well 62, the screw jack 3-A, the motor 11, the frame
21 of the screw jack
3-A, the upper-part 64 of the reciprocating double acting cable oil pump that
is installed inside the
oil well 62 at a desired depth, and the one-way valve 23 that is located
between the outlet gallery
of the pump it self and the transfer pipe line.
Figure 4 is a cross sectional view along line E-E of figure 3 showing the oil
well 62 and a
reciprocating double acting pump that includes the pump it self which is
located inside the well 62,
the screw jack 3-A that is located outside of said well 62, the cables 59 and
59-A and the systems
of pulleys 60 and 60-A through which the torque and the alternative movement
of the screw 3 of
the screw jack 3-A are transmitted to the pistons of said pump. The chosen
pump that is taken as
an example is a double cylinder pump and it includes the cylinders 1 and 1-B,
the pistons 2 and 2-
B, the piston's rods 2-R and 2-B-R, the inlet valves 14, 15, 14-B and 15-B,
the outlet valves 12,13,
12-B and 13-B, the inlet galleries 37-A through which oil is admitted into
cylinders 1 and 2 during
the functioning of said reciprocating double acting cable pump, the outlet
lines 22, 23, 22-B and
23-B that communicate with the outlet gallery 37 in order to transfer oil from
the pump to a
servicing pipe line, the lower part 65 that holds the one-way valves 63-A and
the seal and fixing
device 65-A that seals between the bottom end of said pump and the well 62
from which oil is
sucked while it holds said pump in place affixed to said well 62 at a desired
depth , the frame 61-A
which is affixed to the outside bottom end 1B-B of cylinder 1-B in a way to
hold the bottom
system of pulleys 60-A that is located inside the compartment 61-B, and
through which the cable
59-A communicates the torque and a downward movement to all the pistons of
said pump through
the coupling shaft 52, the upper end 64 that holds the one-way valve 63 and
the seal and fixing
device 64-A that seals between the upper-part of said pump and the well 62
while it helps the
fixing device 65-A to hold said pump in place affixed to the pipe of said well
62 at the desired
13

CA 02514817 2005-08-11
depth, the coupling shaft 52-A that is a part of the cable 59-A at the level
of the upper-end 64 of
said pump and which is needed to slide snugly inside a drilling machined in
said upper-end 64 in
order to seal between the lower and higher pressure zones of the well during
the functioning of
said pump. The screw jack 3-A includes the screw 3, the free turning gear-nut
4, the brace 6 of the
frame 21, the motor 11 that is used to operate the gear-nut 4 through the
gearbox 11-A, the shaft
26 and the pinion 5, the tongue 7 that travels with the screw 3 of the screw
jack 3-A the same
distance that the pistons 2 or 2-B travels between the beginning and the end
of the compression
stroke of every cycle of said reciprocating double acting cable pump, upwardly
to operate the
electrical contactor 8 at the end of every compression cycle when said pistons
2 and 2-A are
moved upwardly, and downwardly to operate the electrical contactor 9 at the
end of every cycle
when said pistons 2 and 2-A are moved downwardly in order to rotate the gear-
nut 4 in one
direction or in the other through the control of said motor 11 or said gearbox
11-A, that gives a
linear and a reciprocating movement to the screw 3 of the screw jack 3-A. In
addition figure 4
includes the frame 61 which is affixed to the main frame 21 of the screw jack
3-A in a way to hold
the upper system of pulleys 60 that is located outside of the well 62 and
through which the cable
59 communicates the torque of said screw 3 and an upward movement to all
pistons of said pump
through the piston's rod 2-R and the coupling bracket 10 that affixes the
cables 59 and 59-A to the
screw 3 of the screw jack 3-A
Figure 5 is a cross sectional view along line A-A of figure 4 including the
oil well 62, the cylinder
1, the cable 59-A the piston's rod 2-R, the inlet valve 14, the outlet valve
13, the outlet line 23 that
communicates with the outlet gallery 37, and the inlet gallery 37-A.
Figure 6 is a cross sectional view along line B-B of figure 4 including the
oil well 62, the upper
end 64 of said reciprocating double acting cable pump, the coupling shaft 52-
A, the piston's rod 2-
R, the outlet line 23 that communicates with the outlet gallery 37, and the
inlet gallery 37-A.
Figure 7 is a cross sectional view along line C-C of figure 4 including the
oil well 62, the cylinder
1-B, the cable 59-A, the piston 2-B, the piston's rod 2-B-R, the outlet
gallery 37, and the inlet
gallery 37-A.
14

CA 02514817 2005-08-11
Figure 8 is a cross sectional view along line D-D of figure 4 including the
oil well 62, the outside
bottom end 1B-B of cylinder 1-B on which the frame 61-A is affixed in a way to
hold the bottom
system of pulleys 60-A that is located inside the compartment 61-B and through
which the cable
59-A communicates the torque of said screw 3 and a downward movement to all of
the pistons of
said pump through the coupling shaft 52. In addition figure 8 includes the
frame 61-A, the
coupling shaft 52, the bottom end 65 of said reciprocating double acting cable
pump, the cable 59-
A, the outlet valve 12-B, the outlet line 23 that communicates with the outlet
gallery 37, the inlet
valve 15-B, and the inlet gallery 37-A.
Figure 9 is a top view of a reciprocating double acting compressor that can be
used as an air
compressor or as a liquid pump, having its cylinders made out of flexible
hoses including the
screw jack 3-A, the motor 11 of said screw jack 3-A, the frame 21 that holds
the entire compressor
including the screw jack 3-A, The flexible hoses 69, 69-A, 69-B, and 69-C that
are made out of
clothe or the like to replace the cylinders of said compressor, the braces 66
and 68 that replace the
pistons while they are used to operate said flexible hoses during the
functioning of said air
compressor or said liquid pump, the stationary head 67 that holds one end of
the flexible hose 69,
the stationary head 67-A that holds one end of the flexible hose 69-A, the
stationary head 67-B
that holds one end of the flexible hose 69-B and the stationary head 67-C that
holds one end of the
flexible hose 69-C. In addition figure 9 includes the inlet lines 24, 25, 24-A
and 25-A, and the
outlet lines 22, 23, 22-A and 23-A.
Figure 10 is a front cross-sectional view along line F-F of figure 9 for a
reciprocating double
acting air compressor as an example and having its cylinders made out of
flexible hoses including
the screw jack 3-A, the screw 3 of the screw jack 3-A, the free turning gear-
nut 4, the braces 66
and 68, the frame 21, the motor 11 that is used to operate the gear-nut 4
through the gearbox 11-A
and the pinion 5, the tongue 7 that travels with the screw 3 of the screw jack
3-A the same distance
that the brace 66 or 68 travels between the beginning and the end of the
compression stroke of
every flexible hose 69, 69-A, 69-B or 69-C, to the right to operate the
electrical contactor 8 at the
end of every cycle to the right, and to the left to operate the electrical
contactor 9 at the end of
every cycle to the left in order to rotate the gear-nut 4 in one direction or
in the other, through the
control of said motor 11 or said gearbox 11-A, that gives a linear and a
reciprocating movement to
the screw 3 of the screw jack 3-A. The stationary head 67-A that holds one end
of the flexible hose

CA 02514817 2005-08-11
69-A, the protrusion 68-A from one side of brace 68 that holds the other end
of the flexible hose
69-A. The stationary head 67 that holds one end of the flexible hose 69, the
protrusion 68-B from
the other side of brace 68 that holds the other end of the flexible hose 69.
The stationary head 67-B
that holds one end of the flexible hose 69-B, the protrusion 66-A from one
side of brace 66 that
holds the other end of the flexible hose 69-B. The stationary head 67-C that
holds one end of the
flexible hose 69-C, the protrusion 66-B from the other side of brace 66 that
holds the other end of
the flexible hose 69-C. The coupling brackets 10 that are used to affix the
screw 3 of the screw
jack 3-A from one side to the brace 66 and from the other side to the brace 68
in order to operate
the flexible hoses 69, 69-A, 69-B and 69-C during the functioning of said
compressor. The
grooves 10-A in which the braces 66 and 68 slide during the functioning of the
reciprocating
double acting compressor, the inlet valves 12, 14, 12-A and 14-A, the outlet
valves 13, 15, 13-A
and 15-A, the inlet lines 24, 25, 24-A and 25-A, the outlet lines 22, 23, 22-A
and 23-A. In addition
figure 10 includes a well predetermined quantity of liquid 70 as water, oil or
the like that is placed
permanently inside said flexible hoses, which is used to evacuate all of the
remaining compressed
air out of said air compressor at the final end of every compression cycle
aided by the protrusions
66-A during the compression in the flexible hose 69-B, by the protrusions 66-B
during the
compression in the flexible hose 69-C, by the protrusions 68-A during the
compression in the
flexible hose 69-A, and by the protrusions 68-B during the compression in the
flexible hose 69.
It should be understood, of course, that this pump can be built from various
materials and in
different dimensions according to the quantity of compressed fluid required.
The drawings do not
show every step in the construction of the present invention, but they set out
the overall result
clearly.
16

CA 02514817 2005-08-11
Operation of the invention.
A- The patent no 2473077 explains in details the functioning of a double
acting air
compressor, but if the fluid is liquid, then the functioning of the pump will
be the same in
pumping water, oil or the like.
B- Reciprocating double acting cable pump
According to the example of the present invention, the Reciprocating double
acting cable pump
has two Cylinders and is used to pump oil from an oil well, and before
starting it, all of its
components must be in place in order to pump oil from deep depth.
1- The location of said Reciprocating double acting cable pump inside said oil
well is
well chosen at the right depth.
2- The pump will be affixed inside said well 62 at the predetermined depth,
through
the seal and fixing devices 64-A from up and 65-A from down.
3- Said screw jack 3-A will be installed outside of said well.
4- said frame 61 will be in place affixed to the main frame 21 of the screw
jack 3-A in
order to hold said system of pulleys 60.
5- Said frame 61-A will be in place affixed to the outside bottom end 1B-B of
cylinder
1-B in A way to hold the bottom system of pulleys 60-A that is located inside
the
compartment 61-B.
6- The cable 59 will be in place looping around the system of pulleys 60 and
attached
from one end to the piston's rod 2-R of piston 2, and from the other end to
the coupling
bracket 10 that affixes the cable 59 to the screw 3 of the screw jack 3-A in a
way to give an
upward movement to the pistons 2 and 2-B inside their respective cylinders 1
and 1-B
when the screw 3 of the screw jack 3-A pulls downwardly said cable 59.
17

CA 02514817 2005-08-11
7- The cable 59-A will be in place looping around the system of pulleys 60-A
and
attached from one end to the coupling shaft 52, and from the other end to the
same bracket
10 that affixes the cable 59-A to the screw 3 of the screw jack 3-A in a way
to give a
downward movement to the pistons 2 and 2-B inside their respective cylinders 1
and 1-B
when the screw 3 of the screw jack 3-A pulls upwardly said cable 59-A.
8- The outlet gallery 37 will be connected to the servicing pipeline in order
to transit
the oil from the well to a storage facility.
9- Once all the components are in place, the Reciprocating double acting cable
pump
is ready to run.
10- When the electric motor 11 starts turning, the torque will be transferred
to the screw
3 of the screw jack 3-A, through an automatic planetary gearbox 11-A with
electric
commands as an example. Said planetary gearbox 11-A is operated by the
electric
contactors 8 and 9 in order to alternate the rotation of the gear-nut 4 that
in turn it alternates
the movement of said screw 3 upwardly or downwardly.
11- If the screw 3 of the screw jack 3-A is moving upwardly, the cable 59-A
will be
pulled upwardly, but because of the system of pulleys 60-A the pistons 2 and 2-
B will be
pulled downwardly according to the present configuration that shows the
coupling bracket
10 attached to the cables 59 and 59-A between the two systems of pulleys 60
and 60-A.
12- Oil enters said reciprocating double acting pump through the one-way
valves 63-A,
the inlet gallery 37-A, the inlet valve 14 toward cylinder 1 by side 47 of
piston 2, and the
inlet valve 14-B toward cylinder 1-B by side 47-B of piston 2-B.
13- If already oil was inside cylinder 1 by side 46 of piston 2, and inside
cylinder 1-B
by side 46-B of piston 2-B, than this oil will be compressed in cylinder 1 by
side 46 of
piston 2 to go the outlet gallery 37 through the outlet line 22, and in
cylinder 1-B by side
46-B to go the same outlet gallery 37 through the outlet line 22-B. This
compressed oil
goes through the one-way valve 63 to the servicing pipeline that starts in
this case by upper
18

CA 02514817 2005-08-11
part of the piping of said oil well 62 that is located above said
reciprocating double acting
pump, than to a storage facility.
14- The cable 59 will be pulled downwardly in order to be ready for the next
compression cycle by side 47 and 47-B of the same pistons 2 and 2-B in their
respective
cylinders 1 and 1-B.
15- At the end of the downward run of pistons 2 and 2-B, the tongue 7 touches
said
electric contactor 8, and the gearbox 11-A will be commanded to turn the gear-
nut 4 in the
other direction that starts to move the screw 3 of the screw jack 3-A
downwardly.
16- When the screw 3 of the screw jack 3-A is moving downwardly, the cable 59
will
be pulled downwardly, but because of the system of pulleys 60 the pistons 2
and 2-B will
be pulled upwardly.
17- Oil enters said reciprocating double acting pump through the one-way
valves 63-A,
the inlet gallery 37-A, the inlet valve 15 toward cylinder 1 by side 46 of
piston 2, and the
inlet valve 15-B toward cylinder 1-B by side 46-B of piston 2-B.
18- The oil that is now inside cylinder 1 by side 47 of piston 2, and inside
cylinder 1-B
by side 47-B of piston 2-B, will be compressed in cylinder 1 by side 47 of
piston 2 to go
the same outlet gallery 37 through the outlet line 23, and in cylinder 1-B by
side 47-B to go
to the same outlet gallery 37 through the outlet line 23-B. This compressed
oil goes
through the same one-way valve 63 to the same servicing pipeline.
19- The cable 59-A will be pulled upwardly in order to be ready for the next
compression cycle of the same pistons 2 and 2-B in their respective cylinders
1 and 1-B.
20- The oil pumping continuous as long oil exists in the well and the screw
jack 3-A is
running and operating the reciprocating double acting cable pump through the
screw 3 and
the cables 59 and 59-A.
19

CA 02514817 2005-08-11
C- reciprocating double acting compressor having its cylinders made out of
flexible hoses
that can be used as an air compressor or as a liquid pump.
According to the example of the present invention, the reciprocating double
acting compressor that
have its cylinders made out of flexible hoses, can be used as an air
compressor or as a liquid pump.
The following compressor of figure 10 has 4 flexible hoses while it is used to
compress air, and
before starting it, all of its components must be in place in order to
compress air at a fairly low
discharge pressure.
1- The screw jack 3-A has to be in place with its screw 3 that is attached to
the right,
to the brace 66 through the coupling bracket 10, and to the left to the brace
68 through
another coupling bracket 10.
2- The flexible hose 69 will be attached from one side to the stationary head
67 that
holds the inlet valve 15 and the outlet valve 12, and from the other side to
the protrusion
68-B of the brace 68.
3- The flexible hose 69-A will be attached from one side to the stationary
head 67-A
that holds the inlet valve 14 and the outlet valve 13, and from the other side
to the
protrusion 68-A of the brace 68.
4- The flexible hose 69-B will be attached from one side to the stationary
head 67-B
that holds the inlet valve 14-A and the outlet valve 13-A, and from the other
side to the
protrusion 66-A of the brace 66.
5- The flexible hose 69-C will be attached from one side to the stationary
head 67-C
that holds the inlet valve 15-A and the outlet valve 12-A, and from the other
side to the
protrusion 66-B of the brace 66.
6- A well predetermined quantity of liquid as water, oil or the like will be
placed
permanently inside said flexible hoses 69, 69-A, 69-B and 69-C in order to
evacuate all of
the remaining compressed air out of the flexible hoses at the final end of
every

CA 02514817 2005-08-11
compression cycle in every flexible hose, aided by the above mentioned
protrusions 66-A,
66-B; 68-A and 66-B during the functioning of said compressor.
7- A wire or the like will be used to keep a round shape for said flexible
hoses 69,
69-A, 69-B and 69-C while preventing them from collapsing during admission
cycles of
said reciprocating double acting compressor.
8- A support will be used to hold said flexible hoses 69, 69-A, 69-B and 69-C
in a
straight line during the functioning of this type of reciprocating double
acting compressor.
9- Once all the components are in place, the present Reciprocating double
acting
compressor is ready to run.
10- When the electric motor 11 starts turning, the torque will be transferred
to the screw
3 of the screw jack 3-A, through an automatic planetary gearbox 11-A with
electric
commands as an example. Said planetary gearbox 11-A is commanded by the
electric
contactors 8 and 9 in order to alternate the rotation of the gear-nut 4 that
in turn it alternates
the movement of said screw 3 to the right or to the left.
11- If the screw 3 of the screw jack 3-A is moving to the right, the brace 66
will be
pushed to the right and the brace 68 will be pulled to the right, while the
flexible hoses 69
and 69-C will be compressed, and the flexible hoses 69-A and 69-B will be
extended.
12- Air enters the flexible hose 69-A through the inlet valve 15, and the
flexible hose
69-B through the inlet valve 14-A, while the air that is already in the
flexible hose 69 and
69-B will be compressed, and when its pressure riches the predetermined
pressure limit the
outlet vales 13 and 12-A open in order to let the compressed air to exit said
flexible hoses
69 and 69-C toward a pressure tank through the outlet valves 23, 22-A, and the
outlet lines
23 and 22-A.
21

CA 02514817 2005-08-11
13- When the compression cycle in flexible hoses 69 and 69-C approaches its
final end,
the protrusions 66-B and 68-B are helped by the liquid 70 to evacuate all of
the remaining
compressed air toward said pressure tank.
14- At the end of the run to the right of the braces 66 and 68, the tongue 7
touches said
electric contactor 8, and the gearbox 11-A will be commanded to turn the gear-
nut 4 in the
other direction that starts to move the screw 3 of the screw jack 3-A to the
left.
15- When the screw 3 of the screw jack 3-A is moving to the left, , the brace
66 will be
pulled to the left and the brace 68 will be pushed to the left, while the
flexible hoses 69-A
and 69-B will be compressed, and the flexible hoses 69 and 69-C will be
extended.
16- Air enters the flexible hose 69 through the inlet valve 14, and the
flexible hose 69-C
through the inlet valve 14-5, while the air that is already in the flexible
hose 69-A and 69-B
will be compressed, and when its pressure riches the predetermined limit the
outlet vales
112 and 13-A open in order to let the compressed air to star exiting said
flexible hoses 69-
A and 69-B toward said pressure through the outlet valves 12, 13-A, and the
outlet lines 22
and 23-A.
17- When the compression cycle in flexible hoses 69-A and 69-B approaches its
final
end, the protrusions 66-A and 68-B are helped by the liquid 70 to evacuate all
of the
remaining compressed air toward said pressure tank.
18- At the end of the run to the left of the braces 66 and 68, the tongue 7
touches said
electric contactor 9, and the gearbox 11-A will be commanded to turn the gear-
nut 4 in the
other direction that starts to move the screw 3 of the screw jack 3-A to the
right starting
another period.
19- The air compressing continuous as long the screw jack 3-A is running and
operating
the flexible hoses through the screw 3 and the braces 66 and 68.
22

CA 02514817 2005-08-11
20- This type of compressor with flexible hoses are used to pump fluids at a
fairly low
pressure. But the pumps that have their cylinders made out of steel, composite
or the like,
can be used to pump liquids at very high heads or at very high discharge
pressure, and to
compress gases at very high discharge pressure.
The advantage of using the reciprocating double acting pump the subject of the
present invention,
is that this pump is very effective especially when it is used to pump oil
from oil well specifically
from the very deep ones, where conventional cable pumps are used normally. The
time needed for
the pistons to go back to the pumping position in conventional cable pumps is
not productive,
while it is productive in these cable pumps the subject of the present
invention that help to
conserve a tremendous amount of energy.
It should be understood of course, that the foregoing disclosure relates to
only a preferred
embodiment of the invention. This disclosure is intended to cover all changes,
and modifications
of the example of the invention herein chosen for the purposes of the
disclosure, which do not
constitute departures from the spirit and scope of the invention.
23

A single figure which represents the drawing illustrating the invention.

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Admin Status

Title Date
Forecasted Issue Date Unavailable
(22) Filed 2005-08-11
(41) Open to Public Inspection 2007-02-11
Dead Application 2009-08-11

Abandonment History

Abandonment Date Reason Reinstatement Date
2008-08-11 FAILURE TO PAY APPLICATION MAINTENANCE FEE

Payment History

Fee Type Anniversary Year Due Date Amount Paid Paid Date
Filing $200.00 2005-08-11
Maintenance Fee - Application - New Act 2 2007-08-13 $50.00 2007-06-27
Current owners on record shown in alphabetical order.
Current Owners on Record
ABOU-RAPHAEL, AFIF
Past owners on record shown in alphabetical order.
Past Owners on Record
None
Past Owners that do not appear in the "Owners on Record" listing will appear in other documentation within the application.

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(yyyy-mm-dd)
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Abstract 2005-08-11 1 21
Description 2005-08-11 23 1,062
Claims 2005-08-11 5 198
Drawings 2005-08-11 7 205
Representative Drawing 2006-01-26 1 23
Cover Page 2007-02-01 1 53
Correspondence 2005-09-27 2 58
Assignment 2005-08-11 3 181
Correspondence 2005-09-20 1 18
Correspondence 2005-09-21 1 19
Fees 2007-06-27 1 63