Note: Descriptions are shown in the official language in which they were submitted.
CA 02247088 1998-08-19
PROCESS AND DEVICE FOR THE CONTINUOUS PRODUCTION OF SODA
WATER OR THE LIKE AND MIXING VESSEL USED
0
DeK r~ption
l'he invention is a met~d a~d a device for
thc co. .~ ~lu~ .. of soda w~tes or
sada-lllce water by gastrono~i~
b~c;~ c.cr c, cc.. :c~. ;f s andJor e~d
~ a- ~ g-tankwhich i5u5ed
in the fo.~ , ~ de~
Ma~y people prefer be~dg~s C~ inin~
10 COz bcA~usc of the~r s~ . L l; ~ effect If you
buy bottled soft drir~, mine~ water or
beer, th~y have already ba~n f..~ I.c.d with
c&~l,o~c aad by the b~sL~ g co..l~a..y. ~or
the saie in ~L.ol-o~ b~ r-s soft
rinks are usually available in barrelIike
beverage ~..1..;... ~ which have t~;vo
cn~--cvl~on~ at the~r top~ When in.~ll~
~n~ a r,~ ;"~i~p~ e~ ~ g~nnmi~l
~Isin~sses one conn~io" is coupled to a
20 C02-source, usual~y a CO2-gasboetle, its
iS s~ nt to dissol~e the
prickling CO2 ir~ the soft drink and also
provides s~ci--nt ~ ure to press the soft
drink treated as ... -;nnP~ above through a
2~ col---r~ ~g tube inct~ J L~ ,n a eap and
the second co~ , of thc bc.~ag~
c~ . When ~ d, the CO, e",i~L~d
sof't drink i9 taken f~om the cv~ by
operling the ~ap. Ihis me~hod is used for al~
ru~..L~ ~ P.n~ beverages. a~so for beer
(where the CO~-prcssure is needed only to
transport the beer ~-o~gh the piping).
Oehe~ beverages such as fiuit Juices or
w~es are not sold ~n those
3~ con~inf~ whic~ means ~lwds cs-.~l~.. ~,
carbonic acid must be added to produce
S~)~Lt~5 or f~it 3uice mi~ces. ~or t~-s
purpose mineral-w~ters rnust bc purchase d
bec~LIse pure soda-water is for reasons of
40 taste not a~,ailable or cannot be pro~duced
by ~ o--omical b~ s~--at the s~Q~nrnt
~neral-waters are bottled or~y from
C~2isl mineral spr~gs w~ch lea~s ~o
decrcasing availabil~ty And ~;.cascd costs.
45 An ~dA;ti.~n~l cost ~or is oftenthe long
transport from mine~al spnngs to
consurners The G~r~in~ll rninerals on the
CA 02247088 1998-08-19
PROCESS AND DEVICE FOR THE CONTINUOUS PRODUCTION OF SODA
WATER OR TEIE LIKE AND MIXING V13SSEL USED LH~
.,
other t.~_d are not le~ L in any way if
min~al water is mixed wil:h wine or JuiCes,
,. Gfo..; it is no~ possible to acbieYe a
better tashng product aside fr~m the
5p:~rklin~ eff~
The ~~e~allCy ofthe e~nomic~l value of
a mineral-water used to produce w~ne or
~it-Ju~ee muccd-be~rerages and its
inf~ Pncc on the taste of that drink is ~he
reaSOn for the demand of ga .L..~ t
b~ i and/or CQr~ Jm~rs
to develop a method to produce d~ . hl~
CO2-~nn~hed ~fater for use w~th juicc--
and/or ~nne-mixes that i~ d this
mven~ion
Closely related to this problem is to obtain
a device that allows the procedure of the
P~{ mcthod, as well ~s the
com,~o..ents specific for this patent,
required for such a device.
To pr~ducc soda water this invention pians
to take water ~om the water supply, fee~l it
mto ~ rnixing-~ank where it is ~;chcd with
COl and then Lli~ sed fi-om a tap do~n
Q~rrent The onl~r raw ~ . used in this
method are tap water asld CO,-gas. Since
tap water is ~ ." the costs for soda
water in mi~c-bevesagc s with the method
;fL~ c1 in thi~s inven~on are L~ ~1i
.he produced soda ~rater can also be
served as is bc~ ,.,c it is from pure tap
water and therEfore without harmfill
s~lbst~n~.~.c The cost fi~or compared to
store-bought mineral-watess is e~.ren
g~ater.
An ~itionlo ~is ~ncthod would ~e to
filter the tap water before the e~richment
w~th CO2 to f iimin~f~ any odors or c,olors.
Tap water is in any ca~se frce of to~Qc
subct~nc.es. however it could contain
sccrc~ions from the pl..~ that may ~e
noticed by people with ~ taste buds
Withthefilterin~nlr~ allsuspended
p~ticlesareret~nedsothatthe
consistencyisvery pure
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O 3
It is ~ c~ d that thetapwater is
coo1ed dov~n to a temperaturc of 2--lO
de~rees Celsius (35 6--50 de~
Fshrenheit~, ~referab~y 4--6 d~s
Celsius (39 2--42.8 de rees 1~ ~ ~l,eit).
At this t~ LLure C0,~ has ~ts highest
absol~Lion in water and that leads to a ver~
pnc~ efEect. ~so the soda water has an
ideal ser~n~ t .~ Lure. .
Ihe p:ltf~rlt~3 method allows a ~rariation of
the c~nG ~ ion of C0~ in the~ater by
vaI~ati~g the ~ u~, ofthe C0~ a~conl.~lg
to the Law of ~eD~y, w~ich rules tha~ the
solubilit~ of gas at a co.~ al~lre
l~i is propor~onal to ~e par~Ial y~ e of the
gas above the solvent. With the pr~ ssure
valve on the ~s bottle the ~c and
also its a~sorption is controDablc
Another possibilit~ to infl~ he C~2
~0 ~ dLion is to add pure tap water to
the produced soda water.
The de~nce dcs~ il,~ d above, t}~ aUows the
continm~e production of soda water or
soda- like water ~y gastrono~t~
2~5 b tcinr!55~, cnmmi.ee~r~es, or cn~mf~rS
c~ns~sts of a ~r~xin~-~ank, that ~as an inlet
tube .,o....~ ~3 w~t}~ the water supply and a
drain cnnn~.tion that is col~1p~ ith a tap.
FurtheImore the sn~xing tank lus an
di~on~l conncctior~ to ~ E~ tar~
CO~ g C02. Because of ~his
the rni~g tank alway~
receives a s1~ffi~ nt supply i~fC02 and tap
water so ~here is always cnough soda water
35 in the tank for pour~ng and sale 1~1 a very
s~ort time the CO2 gas spreads out through
the rnixing tanlc and therefore the t~p can
be lef~ open for longer periods of ~ne.
To avoid the sea~ing CO2 throug~ the
40 m~x~ng-tar~c into the water supply the
inventors placed a one-way valvcbetween
the mix~ng tank and rhe ~v~ter supply. By
usin~ a g~s~pht valve C02-gas ma~l not exit
and pressure ~5 not lost.
45 ~ even more advantageous: ~,E,L.~ent is
to use a cooling apparatus ahead ofithe
CA 02247088 1998-08-19
mi7ung tank before the tap water is fed into
th~nk This means the warer is cooled to
an ideal temperature to absorb the COz and
also h~ an idea~ selving t~elaL~ even
before it reaches the mix~ ta~
The most ~vu~ble ~ n~ d~s a
filter sihl~tes~ eit~her ~efore the m~nng-~ni~,
the one-way valve or the cooling a~ s
This filter L~WV~_'S v~ioUs hs-~nfil1
~uh~ s ~c well dS a~y ~.v u. . and
odors and if np~.~ss~ly any su ~~,eL~dcd
par~cles which leads to a hi~h degree of
punty. Por ~his pulpose it is inf~ A to use
a filter that allows minerals and calc to pass
through it l:lecause such 5~1.5~ c~c ~nl~..CG
the taste. Other s~-hct~nr~s such as chlorine
or pathoge~c agents are hdd back It is
f~ol r~ nrl~l to use a filtcr w~th an
absorption chamber where ac~vats~d
charcoal ennched with silver is used. Such
filters rnay be eq~ pe~- with dev~ces to shut
offthe water flow, when ~hc filter capacity
is e~ stef-, th~t the b:~rlc-f~epf~ knows
wllen it is time to change the filter. To
L~,e a quick reFl -f~f-Tnf?-1t of the filter,
valves are placed before and bfehind the
fi3ter to stop water flovr, durulg the
f~.hangTnfJ o~the filter.
The mixing-tank is the crucial part of this
soda-water producing de~nce. It has a
water connection.. ~hermore, the t~nk
has a nozzle tO feed COl ~nto the tanlc that
is connected to z tube. To avoid CO2
getting into the water inlet tube or w~ter
into the ,gas bottle one-way valves are
inSt~Ue~ The m~ba~g-tanlc m ~st be built so
that there is al~vays sTTffif-if~nt ~ , to
push the CO2 G~ ichcd water to the tap.
However the nozle to feed the CO2 into
the tank should be so constructed as to
avoid a CO, bubble b~lding in the
conta~ner The fIter respectively the
coolirlg apparatus are ~sually belo~ the tap
that it is log~cal that the water inlet nIbe
- should be located at the bottom ofthe
rr~xin~ conta~ner. For the same rcasons the
CA 02247088 l998-08-l9
O S
water drain c~ r~ should be placed at
the top.
The rr~xing-tank itself should be made of
~ol~u5~0nand ~c~u~ S;~ L m~tPri~l
5 e.g. ru~-fi~e ~;n1~c~ ~e~.
This leads to a high durability of the
mixing-~ ,~ AI detsils and
adv~nt~ges ofthis invention are ou~l;ned in
the follow~g dcs~ ;0~) of rn~ Le~0 designs as ~rell as the desc~p~on of the
vings The se ~l~ nw ~;5 show in
fig 1. a design for larE~e
gc~ l bl~cinPssl~c,
fig 2 same r7i~ l.s with a slightly
1~; d~L design f~om figure I
fig 3 a design f~r srnall
~,~""""~... ;Pe and
f~g 4. a desigll for Col-S~
F~3 1 cont~in~ the tubing of a tap fol~nt~in
20 dispenser (~) of a ~3astronomical business,
~rhere a vane~y of beve~ages are offered
These the b~rkf~per can take from the
vanous taps(2-6) held from the fountain
dis~ r {7~ at the b2r cou~L~. (8) To
25 keep available this large a number of sof't
drink or beer c.o..~ f - :, (9-lZ) a shaft (17)
Is built bet~,veen the floor ~13~ s~fthe main
room (14) a~d the ceiIing (15) ofthe
b~ (16) into the ar~a of the bar
~\ colmter (~3). Through this shaft (17} thc
taps (Z-53 are ~ e~ to beverage
co~ rs (9-lZ) ~a tu~es (18). To
~u~tee an ~deal temperatllre of those
beverages a cooling ap~dl v.Lus ~19) is
3~i located between the taps ~ I 8) and the
c~..lA;.~ 9-12) T}~s appa~atus should
have m~lt;r-l~ cham~s with ;nlet tubes
(20-24) and drains (25-29) so that the
corresponding beverages are cooled to a
t~"l~e~ of 4--6 degrees Celsius (39 2
--42.8 degr~s Fai,. ~ ;L) To transport
the beverages fi~m their cont~in~rs ~9-I2)
located in the b~ l (16) to the taps (2-
S) on the fount~in ~ ~er ~?~ each
4~; cont3iner ~9-12) has not only a dra~n
conne -Lion ~30-33) but also an additlonal
inle~ e (3~3?) ~ese inlet tubes(34-37)
CA 02247088 1998-08-19
are c~nn~r,ted v~a tubing ~38) to a C02-gas
bottlc ~39). A plcssu~ re~ e.n~ valve C40)
is set to control the Co2-~reia~ ins de the
beverage collLa~L~ (9-12). Thi~ pf esa~ ~
tl~layO~I~ the beverages ~l~uu~ the drain
(30-33) into the cooling plant (19) and
filrther forward to the 1 e~ taps (2-5).
Beverages low on CO2 like soda pop aIe at
the sa ne time ~ chcd with CO2.
A ~ul~L~ (1) ofthis s~ze
provides the oppolLu~y ta instal~ the
dev~ce ~ nbed in this patent in the
folIowing way: in the baseme~t (16) a filter
(42~, with absorption c~ c. and silver
es~iched a~ted charcoaI, is ~".~ e~ to
the waTer supply to fitt.o-r out flavours,
odors, l~mfi~ ~bsl t,.r~ and suspended
particles. The ac~vated charcoul is
cons~me~ o~er a period of time, and the
f~lter must be r~l~ce-1 To keep this
repl~r:rm~nt as easy as possible valves (45,
46) are plsc~d at the water in~et tube (43)
and at thc water drsin convection ~44).
The second valve (46) is ~o.~ cd to the
is~let hlbe (20) ofthe cooling plant (19)
Conn~rteA at the ex~t conn~ion (25) ~s a
plasticmbecornP~t~i to thetubing(l8)
th~t run together with the othe~s through
the shaft (17) ~to the ~ttom ofthe
dispenser (8). At this point 47 the cover
around the tubing (18) is removed and the
~OT.~ nnpd tu~e does not n~n directly to
taps 2-5 but is directed to a one-way ~alve
(48).
'rhis val~e (48) is conn~ete-l to thc water
inlet nlbe (4~ and to the m~xing tank ~50).
In this tank (50) now is filrered tap water
chilled to ~ Ll~re of about 4 de~rees
Celsius (39.2 degrees Fahrenheit), and is
ideal for the eTNichment wlth C~2- To
achieve this, the m~x~ng tank ~50) is
connectecl via a flexible tube ~1) to a srnal~
C02-gas bottle (52) loca.ted under the
fountain c~isp~n~ (8). Via a pressure
gove~n~ng va~ve (53) the a~no~nt of CC)2
fed into the mix~ng tank can casily be
r~ tcrl
CA 02247088 1998-08-19
O 7
Thed~n connP~o~(54)of ~ ~ng
tank (50~ is via a tubc connPc~l to tap 6.
~ fo- e C02 Pn~l~.hP~I soda~ er ~nside
the tanlc ~503 chilted to a tf~ of
ap~ 5 degrees t~elsius ~41
degrees Fahu ~-L~L)canPasllybe ~4~ed
by ope~g tap (6~ n~e o~t~Le one-wa~
valve (483 the CO2 caDnot dii~se into the
wa~er tubings (1 X, 19, 41)
10 The C02-~o~e (563 in~ide~ m~ng t~nk
(50) has a very small o~ , so that even
when the ~02-bottle is ~ o;~Lu
_,~ can not escape This ~s ~
s af ~ty l L L~ ~ 3 S ~ I y .
A slightly di~L~L des~gn is sho~m in
figure 2. The already known palts of the
founta~n ~i:iy~ser 1 are cr ~'c~ '.y
;A~nti~ to figure2. ~denticalparts
the.t;r~.~ have ~e id~ ti~l nu .1.- :, as in
figure l.
Also l-n~ to figure 1 is the m~g
tank (50~ as well as ns tubing u~ regard to
the water inle~ tube (49) and the drain
conrlection ~54) The only di~.cc to
2~ figure 1 is that the COl-~;as fed into the
nozzle (56) v~a tube 51 ~s not ta3~ from an
i~ion~l CO2-bottle but ~om the one
(39'~ located ~n the bE~sement (16?. Recy(~lc~
,_~ of that, the blbe 51 is longer ~n m figure
_.) I and suns to~e~h~r with the o~r 18
tubing throu~h the shaf's 17 into the
b~ n~ 16 a~d to a second y~ul~:
~YelifLIlg valve 57 located at the gas bottle
39' This has the a~lVdll'L~,~ that ~he
3S pressure of the CO2 used to emich the tap
water in the mix~ng tanlc 50 is i...l~ ~,. n~f.nt
f~om the pressure of the CO2 in the
pressure tubes 3~' and can ~e
independen~ly re~ll~t~l To pr~s ~he
~0 bev~rages from the~r co~ta~ners ~I2 up to
the taps 2-~ ususally a pressure cf 4 ~ l Os
Pa is used, because of the pre~c;
gove~n~ valve 57 a higher p~ssure of up
to 7 * 10~ Pa may be use~ to release CO
45 into the rn~x~ng t.~nk 50.
In figure 3 another setup is shown which is
intended for ~nmmiss~r~es beG~se of the
CA 02247088 1998-08-19
smaller fo~a~ ensc. 61. T~e bar
counter 62 has a sink 63 to wash glasses or
other dishes. As inlet tube to t~e sink a tap
(64) is used that is in turn co~ .-.r~l~ d to the
water supply 65.
To comlect the de~rice to pro~ce soda
water the water tube 6~i of the tap 64 is
fiKed with a Te~ fit~ng 67. The j~nc~son
68 can be closed by a s.hut-o~valve 69 is
tlle feed 70 of a filter 71 This ~lter should
as ea~lier described, be e~ ~d with silver
~ns~t~.h~ci activa~ed ch~oal or a s~nilar
typ~ eh~d the filte~ is ano~L~ shut-off
valve 72, to al.'ow easy f~lter ~ ment
by clos~g the shut-off valves 69 and 72
The filtrated water nOws into a coo~ng
apparatus 73 where it is cooled to a
temperature of 2-10 degrees CeIsnus ~35.6-
50 degrees Fa}~ e;L~ The cooled water
then flows through a one-way valve 74 ~nd
into a ~g t~ 75 which may be
i i~nts-~l to the tanlc 50 firom the fountaisl
..- 1. The filtered and cooled wa~er
in the mixing tank 75 is than e~riched w~th
CO2. A CO2-bottle 76 with a pressure
valve 77 ;s c~....~ v~a a
~exible tube 78 to nozzle 79 in the t~nk 75.
By go~rern~ng (77) the press~re in thc tube
(~8) the amount of'CCi2 in the tank (75) Gan
be r~ te~
From the ~ratOE drain connp~;~l~ (80) of
the taIlk (7~3 a nlbe (81) leads to a tap (82)
w~ich is ~n~t~ d above the counter ~61).
~Jhen a guest orders a rn~x-drink such as a
spri~zer orfuic~m~, the barkeeper ~rst
pu~s the wLne or juice ir~to the glass and
then adds cooled soda-water fi~m the tap
82 The resu~ting Tnix-drink has no
~liffereIIce ~n taste col.",~ed to rn~x-drirlks
rnade ~c~ cornmercial mineral walcrs.
In fi~ure 4 is yet another f~l ~mple ofthis
inven~ion shown this t~rne interKied for
private home usage. It is conne~.te~ to the
water supply 97 uuder a sir~ 92 Near the
sinlc 93 ls a fia~.lcet 94 with temperature
ccr (95) for cold and hot ~ter. T~is
CA 02247088 1998-08-19
O 9 "
fi~ucet (95~ is c~ -A î~xl to <96) to the hot
water supply of the b~ ng and also to the
cold water supply (97).
addition to the faucet (94~ for cold and
~; hot water ano~ faucet (9~,) is placed near
the sink ~9:~ from which soda-water can be
taken. Ihe water supply (973 is connecter~
via a tube (100) and a sh~lt-offvalve (101~
to a filter (102). This filter shollld be of the
10 earlier mf~nti-~n~l type w~th silver ~-nnrh
activated eI~o~l. r)ownline fiom the filtcr
(102~ is another shut-off-ralve 103 which
"_~ can be close~i together ~th the shut-off
valve ( 101) for filte~ rt~pl~r,em~n~(lQ2). A
15 Tee fitting (104) is inserted at the drain of
the shut-offv~lve ~03). A drain
cu~ ;on at this crossing leads to the
m~xing tank ~109) and to the soda-water
tap (98), so that the opPning of an armature
(106) from the mixing tank ~109) leads to
filtere~ water flo~om the faucet (98~
This ~ltered v~ater is especia~y suitable for
the elderly and also for infants
A~other tube at the Tee fitting (104) is
Z~ c~;~cd v~a a one-way ~alve (107) to the
mlet tube <108) of a~x~ng-tank (109~.
Ihis tank (109) cas~ be iAPnti~ to ~he
tanks 50 and 75 A no?7le (110) inside the
tank (109) is conn~ec~ via a ~ able tube
(111) to a CO~-bottle ~112) w~th a pressure
gove~ng vaIve ( ~1~) With this valve
(I I3) the CO2-pressure can be re~ red at
the time of the inet~ tion of the C02-
bottle (112) and needs not to be ch~n~
35 The d~ ~o~ n ~114) ofthe ~r~ang
tank (109) is via another tube (1 15~
connP~x~ to the faucet (105) so that by
opening an a~na~ure (116) at the tap (98)
(~02-enr~ched water Mows from th3t tap
4;~ The arrnatures 106,1 16 re~ulatc thc soda
water and the filtered water arnount so that
eaGh farr~ly member can mix a water drink
to personal preference
A coolin~ appAratus ~; not planned
a~;cording to figure 4 however one c;ould be
CA 02247088 1998-08-19
placed ~ the shut-offvalve (I03)
and the Tee fitting (104)
