US2420850A

US2420850A - Mixing faucet for dispensing beverages

Info

Publication number: US2420850A
Application number: US617709A
Authority: US
Inventors: Yuza Rudolph
Original assignee: DALKIN Co A
Current assignee: A DALKIN Co; DALKIN Co A
Priority date: 1945-09-21
Filing date: 1945-09-21
Publication date: 1947-05-20
Anticipated expiration: 1964-05-20
Also published as: US2491633A

Description

May 20, 1947. R. YUZA 2,420,850

.7 MIXING FAUCET FOR DISPENSING BEVERAGES Filed Sept. 21, 1945 4 Sheets-Sheet l 4Z INVENTOR.

l /a4a 1 14 R. YUZA Filed Sept. 21, 1945 May 20, 1947.

MIXING FAUGET FOR DISPENSING BEVERAGES V n. \v n a vh l 7/ v 1 v\ E H x H 4 Sheets-Sheet 3 V IN VEN TOR. /,o y0z4 f w fizz/,

N2 w \\\\%\\Y\\\ 1 Pkwy R. YUZA l. in i 1 i i l I May 20, 1947.

MIXING FAUCET FOR DISPENSING BEVERAGES Filed Sept. 21, 1945 u l 33 Th1" 7 ,1 1

m an mm May 20, 1947. R. YUZA 2,420,850

MIXING FAUCET FOR DISPENS ING BEVERAGES Filed Sept. 21, 1945 4 Sheets-Sheet 4 '67 INVENTOR.

Tad 440i yuzd Patented May 20, 1947 r 2,420,850 mxmc moon-r roa DISPENSING BEVERAGES Rudolph Chicago, 111., assignor to A. Dalkin Company, Chicago, 111., a corporation of Illinois Application September 21, 1945, Serial No. 61l,'l09

GCIaims. 1

This invention relates to a dispensing apparatus particularly though not necessarily designed for use in connection with soda fountains from which a beverage from a mixture of liquids is principal object is to provide an apparatus of the character described hereinafter which will be highly efllcient in use and economical in manufacture and of a simplified and improved construction.

A stillfurther and equally important object of the invention is the provision for moving the syrup ejecting piston by resilient pressure, resulting from and by reason of a spring connection between the driving piston and the driven piston, with the resulting structure affording a predetermined movement of the driving piston prior to the movement of the driven piston, against a body of syrup previously drawn into a measuring chamber.

Yet another and equally important object of the invention is the provision of a dispensing apparatus of the character hereinafter described, wherein there is obtained a high volume of gas in the carbonated water at the dispensing area, resulting in the dispensing of a highly carbonated drink, with the minimum amount of foam.

Still a further object of the invention is the provision of an apparatus of the character hereinafter described which, by its employment, assures a rapid dispensing of a mixed drink, usually consisting of a syrup and carbonated water. It is common knowledge that delay is encountered in preparing and serving a mixed drink'by reason of the fact that in the dispensing ofa drink consisting of a syrup and carbonated water, a large or deep foam head results, with the consequence that the operator must wait until the foam is substantially dissipated before adding to the drink additional carbonated water and syrup to provide a mixed drink of proper volume. With this in mind, it. is an object of the invention to dispense the syrup and carbonated water in the drinking glass in a manner such that a relatively small foam head is formed, during the mixing operation, thereby facilitating rapid succession in the dispensing of the mixed drink.

Other objects will appear hereinafter.

The invention consists in the novel combination and arrangement of parts to be hereinafter described and claimed.

The invention will be best understood by reference to the accompanying drawings showing the preferred form of construction, and in which:

- dispensed. In this aspect of the invention, a g

Fig. 1 is an elevational view of the dispensing apparatus embodying my invention;

Fig. 2 is a sectional detail view taken substantially on line 2-2 of Fig. 1;

Fig. 3 is a rear view of the same;

Fig. 4 is a sectional detail view taken substantially on line 4-4 of Fig. 1;

Fig. 5 is a sectional detail view taken substantially on line 5-5 of Fig. 1

Fig. 6 is a fragmentary elevational view illustrating the piston within its cylinder as embodied in the invention;

Fig. 7 is a front elevational view of the piston embodied in the invention;

1| Fig. 8 is a rear elevational view of the piston embodied in the invention; and

Fig. 9 is a sectional detail view taken substantially on line 9-9 of Fig. 2.

Referring to the drawings illustrating the preferrecl form of construction by means of which the several objects of the invention are accomplished, a refrigerator is indicated at l0, and it is within this refrigerator that a container containing the syrup and a container containing the carbonated water are arranged, said containers not being shown in the drawings as they may be of any conventional type of construction and do not constitute any part of this present invention.

This refrigerator ill may be of any approved construction having insulated walls Ii for obvious purposes. In the front wall of the refrigerator is arranged a mounting block l2 having a central opening I3. Through this opening I 3 is arranged the cylinder body H of my improved dispensing apparatus. This cylinder body ii at its forward end portion is provided with a collar l6. Between the cylinder body I 4 and the block I2 is an insulating sleeve l8 formed preferably of rubber or the like and having a flange l9 disposed between the collar l6 and the outside wall plate 25 of the cylinder body It are threaded a pair of bolts 21 which draw the cylinder body It in a direction to compress the collar l8 against the flange I8 and the annular seat 24 against the sealing ring 25, thus effecting a complete seal between the cylinder body I 4 and the wall H.

The collar l6 has an internal recess 28 into which seats the inner portion 29 of a head plate 33 formed as an integral part of a nozzle head 3|. This plate 33 provides an annular peripheral flange .32, which, when the plate is connected to the cylinder body H by means of screws 33, is tightly drawn up against the edge of the collar l6, as shown in Figs. 1 and 4.

The cylinder body |4 provides a substantially thick rear wall 34 having formed therein, as shown in Fig. 5, a bore 35, the inner end portion of which is reduced to provide an orifice 33 communicating with a measuring chamber 31, hereinafter more fully described.

In this bore 35 is threaded a nipple 33. Carried by the inner end of this nipple 33, as at 39, is a check valve 43 of a well-known and approved construction. To this nippleds adapted to be connected a supply conduit (not shown) leading from a syrup container (not shown) for the admission of syrup through the nipple and orifice into the measuring chamber 31. The arrangement is such that the syrup is permitted by the check valve to be drawn into the measuring chamber 31, but when the syrup is ejected from the measuring chamber through an outlet bore, the check valve will automatically close because of its resilient structure, and prevent flow of the syrup from the measuring chamber 31 back into the container.

In this end wall 34, there is formed a bore 4|, and mounted in this bore 4| is a nipple 42 carrying, as in the case of the nipple 38, a check valve 43. This nipple 42 communicates with a vertical bore 44 formed preferablythough not necessarily by a drilling into the wall 34, with a plug 45 closing the bore 44 at its upper end portion. This bore 44 communicates with a horizontal delivery passage 46 formed in the-side wall of the cylinder body i4, also preferably though not necessarily by a suitable drilling operation.

The arrangement is such that the measured syrup may be forced into the bore 44 through check valve 43, but cannot be drawn back into the measuring chamber by reason of the closing of check valve 43 in a manner well-known in the art.

The means for drawing the syrup into the measuring chamber 31 and for ejecting the measured syrup therefrom, will now be explained.

In the cylinder body I4 is arranged a piston assembly P consisting of outer piston 41. This piston 41 at its rear end portion and immediately adjacent its forward end portion, is provided with l4 and are provided with a. number of openings 49 to permit the escape of air so as to allow freedom of movement of the piston assembly in the cylinder body l4. Embracing the outer piston 41 and having rolling engagement with the inner walls of the cylinder body I4, is a resilient piston ring 5| of a'construction and form similar to that shown in United States Letters Patent No. 2,317,034, dated April 20, 1943, for providing an eflective seal between the outer piston 41 and the cylinder body 4..

In the lower end portion of the collar I6 is provided an opening 52 which communicates with the interior of the head M and with the space 53 between the cylinder body l4 and outer piston 41 for the dual purpose of permitting the exit of air from within the head 3| and the space 53 to permit the freedom of movement of, the

piston 41 by means hereinafter described and for the additional purpose of allowing exit through the weep hole 52 of any condensation which might form in the head 3| or in the space 53.

The outer piston 41 has a cap 53' threaded thereon constituting the front wall of the piston 41, and this front wall is provided with an opening 53. Arranged within the outer piston 41 is an inner piston 54 having its side walls partially relieved as at 55 from.the inner walls of the piston 41 to facilitate by reduction of friction the movement of the inner piston by means hereinafter set forth. This inner piston 54 provides a mounting stud 53 in line with a mounting stud 51 formed on the rear wall '53 of the piston 41. In the stud '53 is an escape opening 53' which allows for the escape of air from within the piston assembly when the inner piston is moved relatively to the outer piston.

Embracing the outer end portions of these mounting studs 53 and '51, is an expansion spring 59 arranged within an expansion spring 33 having its end portions mounted upon the base portion of the

mounting studs

53 and 51. The arrangement is such that the inner piston 54 will be free to move a predetermined distance to compress the springs 59 and 63 to a condition whereby the springs, upon further movement of the piston 54, will impart movement to the piston 41 against a body of syrup previously drawn into the measuring chamber 31. The piston assembly P together v ith the walls of the cylinder body |4, provide the measuring chamber 31. Rearward movement of this piston assembly is limited by a pilot stud 6|, the length of which may be varied according to the distance of movement of the piston assembly in the cylinder body H in a direction toward the rear wall 34.

Provided by the piston 54 and projecting through the opening 53, is a bifurcated lug 32 carrying a pintle 63 projecting through an elongated slot 34 of a connecting link 35.

This connecting link 35 has its end portion 36 pivotally connected by means of a pintle 61 to a bifurcated lug 63 formed as an integral part of a ball-shaped element (i9 arranged for rotation in the slotted end portion 13 of the head 3| the head 3|.

'upon a pivot pin 12 carried by the head 3| as shown in Figs. 2 and 4. To this pivot pin 12 is also connected the end portion 13 of an operating handle 14. The ball-shaped element 69 has a cam face 15 adapted to engage the top edge 13 of a pair of spaced projections 11 formed as an integral part of a, valve operating disc 13. In this head 3| there is provided a distributing chamber 13 in which is seated a resilient ring 83 preferably formed of compressible material such as rubber or the like, and this valve operating disc 13 rests upon this ring 33 as shown in Fig. 4. The distributing chamber 19 has a connecting orifice 3| into-which the stem 32 of the disc 13 projects. This orifice 8| communicates with a valve chamber 33 provided at the base of an ex-' terior bore 34 formed in the neck portion 35 of Threaded into the lower end portion of this exterior bore 34 is a sleeve 36 formed as an integral part of a nozzle tip 31. This nozzle tip 31 is provided with a bore 33 into .which there is slidably mounted the stud shaft 39 formed as an integral part of 'a valve cup supporting a valve disc 9|, which, when in the position shown in Fig. 4, closes communication between the orifice 3| and the valve chamber 33. This valve disc 9| is normally held in valve-closing position through the medium of an expansion spring 92 mounted in the nozzle tip as shown in Fig. 4. The nozzle tip 31 provides an enlarged portion 93 having slidably arranged thereon a valve 5 sleeve 61' having a valve head 94 controlling outlet of. syrup from a syrup well 93 formed in the valve sleeve 91. Communicating with this well 93 is an outlet 91 having communication through a combined sealing ring and restricting duct, with the delivery passage 46. This combined sealing ring and restricting duct includes a rubber sleeve 99 embracing a short metal duct 99' and compressed against an adjacent wall of the body I4 to prevent leakage of the syrup from the passage 46.

Threaded upon the reduced end portion of the valve head is a nozzle cap 96 providing together with the valve sleeve 91' an outlet orifice 95 for the mixed drink into the drinking glass (not shown).

At predetermined points radially with respect to each other, there are formed in the neck 85 vertical openings I00. Positioned in these openings I are control pins IN the upper ends of which, as shown in Fig. 4 are disposed below and in slightly spaced relation with respect to the valve disc 18 and are adapted to be engaged by this disc 18 to bear the tapered end portions I02 against the valve sleeve 81' to move the sleeve 61' against the action'of the spring I03 whereby to open the syrup outlet 91. While I have shown three of these control pins IOI, it is manifest that there may be less or more in number of the same.

, Communicating with the-bore 19 is a passage I04, and this passage in turn through a sealing ring I05, similar to the sealing ring 98, has communication with a passage I06 formed in the cylinder body I4 and communicating with anipple I01 (Fig. 5) to which is attached the conduit leading from the carbonated water tank.

As shown in Fig. 9, there is formed in the upper periphery of the cap 96 one or more openings I09, and communicating with these openings are vertical slots I09 to liberate for reasons hereinbeiore set forth, excess gas in the carbonated water during drawing of the drink and its passage through the outlet orifice.

To expedite and facilitate locating the valvehead 3| in its proper position with respect to the cylinder body I4 and with the handle 14 and the nozzle 39 in a substantially vertical plane, I pro vide as shown in Figs. 2, 3 and 4, on the cabinet 23 a locating finger 2I'. This locating finger H for the purpose of locating the valve aforesaid, cooperateswith a U-shaped projection 22 carried by the inside wall plate 22 of the wall structure II.

The flow of the syrup, under ejection from the measuring chamber, is through the nipple 42, the check valve 43, the port 44 and into the outlet passage 46, through the restricted duct 98 into the outlet ports 91', from whence it flows from the syrup well 93 with the carbonated water over the valve sleeve 61' into the drinking cup or container.

The flow of the carbonated water from a container (not shownT is through the nipple I01, the passage I06, the restricted duct I05, passage I04, into the distributing chamber 19 for passage through the outlet 95, through which outlet the syrup and carbonated water will by capillary action hug the valve sleeve 81' as the mixture flows into the drinking glass. 7

The diameter of the"duct"90 in its comparison with the diameter of the restricted duct I05 is such that the flow of syrup will be commensurate with the flow of the carbonated water to produce a drink of proper and desirable proportion of the mixture as is conducive to a well mixed drink.

In the dispensing of a mixed dr1"k, it is desir able to draw into the drinking glass prior tothe dispensing of the carbonated water and syrup a small amount of carbonated water only. This will prevent the syrup from sticking and congealing upon the inside bottom of the drinking glass.

To accomplish this feature of my invention, the slot and

pin connection

63 and 64, respectively, between the handle 14 and the piston assembly 41, has been provided. The resulting structure, while opening communication between the outlet ports I I0 and the distributing chamber 19 for the discharge of carbonated water, imparts no pivotal movement to the piston assembly upon initial pivotal movement of the handle 14 about the pintle 12 toward its forwardmost position.

To condition the apparatus for the drawing of a drink, it is necessary to draw a portion of the syrup into the measuring chamber 31. This is accomplished by pivoting the handle 14 about its pintle 12 to its extreme forward position, in which position of the handle 14 the piston assembly 41 will be disposed in its'innermolt posi; tion within'the cylinder body I4. The handlefl' is then pivoted about its pintle 12 to its innermost position or to the position shown in Fig. 4, and during this pivotal movement of the handle 14, the piston assembly 41 will be moved to its forwardmost position within the cylinder body most position, will open the valve disc 18 to allowthe flow of carbonated water through the outlet 95 into the drinking glass so as to screen the in- I side bottom of the drinking glass from the syrup when the syrup and additional carbonated water are dispensed into the glass. Further movement of the handle 14 about its pintle 12 in the above stated direction, will impart movement to the inner piston 54, and this movement will continue until the springs 59 and 60 are compressed to a degree such as will move the outer piston 58 in a direction against the body of yrup previously drawn in the measuring chamber 31. This movement of the piston assembly 41 will force the syrup from the measuring chamber 31 through the check valve 43, into the port 44, passage 46, and restricted passage 99, into the ports 91,- and thence through the outlet 95. During this dispensing of the syrup from the measuring chamber 31, the valve disc 18 is retained open, by engagement between the cam surface 15 and the lugs 11, so that carbonated water will flow through the diverging outlet passages IIO into the outlet where it will commingle with the syrup and flow therewith into the drinking glass.

From a reading of the foregoing description,

it will become apparent that in the dispensing of the mixed drink by the use of an apparatus constructed in accordance with the disclosure herein, there is a flow of carbonated water before, as well as after, the dispensing of the syrup with the water. This feature of the invention accomplishes the dual function of, first, providing a sufficient amount of carbonated water in the drinking glass to screen the inside bottom thereof from the syrup, reducing to a minimum the for- 7 mation of a film of syrup. thereon, and, second, that of washing any remainingsyrup from the nozzle to avoid the presence of a fllm of syrup thereon which would otherwise attract insects or the like.

As a result of the foregoing construction, a measured mixed drink is drawn by the use of my improved dispensing apparatus, in which there is present high carbonation, with the minimum amount of foam and the maximum volume of water, and that the apparatus thus described reduces to a minimum the time required to draw and serv successive mixed drinks.

From the foregoing description, it is apparent that I have provided an apparatus which is capable of the performance of all of the hereinbefore stated objects and that the same is designed with the viewpoint of economy in manufacture and efllciency in use.

While I have illustrated and described the preferred form of construction for carrying my invention into effect, this is capable of variation and modification without departing from the spirit of the invention. I, therefore, do not wish to be limited to the precise details of construction set forth, but desire to avail myself of such variations and modifications as come within the scope of the appended claims.

Having thus described my invention, what I claim as new and desire to protect by Letters Patent is:

l. A nozzle for dispensing a plurality of liquids to produce a mixed drink, comprising a structure having separate liquid passages formed therein, and a nozzle tip at one end thereof and providing a valve chamber communicating with one of said passages, a valve sleeve slidably mounted on said tip and providing a valve for the other of the passages, a valve member in said valve chamber and normally closing passage therefrom, a cap mounted on said structure and surrounding said tip and providing together with said tip a mixing chamber having an outlet orifice, said structure having diverging passages formed therein opening communication between said valve chamber and said mixing chamber, and means for moving said valve member and said valve sleeve from and to valve closing position with respect to said valve chamber and said other of the passages, respectively.

2. A nozzle for dispensing a plurality of different liquids to produce a mixed drink, comprising a structure having separate liquid passages formed therein, and a nozzle tip at one end thereof and providing a valve chamber communicating with one of said passages, a valve sleeve slidably mounted on said tip and providing a. valve for the other of the passages, a valve member in said valve chamber and normally closing passage therefrom, a cap mounted on said structure and surrounding said tip and providing together with said tip a mixing chamber having an outlet orifice, said structure having diverging passages formed therein opening communication between said valve chamber and said mixing chamber, and means for moving said valve member and said valve sleeve from and to valve closing position with respect to said valve chamber and said other of the passages respectively, said cap having means for the liberation of excess gas from liquid entering said mixing chamber for passage through said outlet orifice.

3. A nozzle for dispensing a plurality of liquids to produce a mixed drink, comprising a structure having separate liquid passages formed therein,

and a nozzle tip at one end thereof and providing a valve chamber communicating with one of said passages, a valve sleeve slidably mounted on said tip and providing a valve for the other of the passages, a valve member in said valve chamber and normally closing passage therefrom, a cap mounted on said structure and surrounding said tip and providing together with said tip a mixing chamber having an outlet orifice, said structure having diverging passages formed therein opening communication between said valve chamber and said mixing chamber, and means for moving said valve member and said valve sleeve from and tovalve closing position with respect to said valve chamber and said other of the passages, respectively, said means including a structure common to said valve sleeve and said valve member for moving said valve sleeve and said valve member simultaneously from said valve closing position.

4. A nozzle for dispensing a plurality of liquids to produce a mixed drink, comprising a structure having separate liquid passages formed therein, and a nozzle tip at one end thereof and providing a valve chamber communicating with one of said passages, a valve sleeve slidably mounted on said tip and providing a valve for the other of the passages, a valve member in said valve chamber and normally closing passage therefrom, a cap mounted on said structure and surrounding said tip and providing together with said tip a mixing chamber having an outlet orifice, said structure having diverging passages formed therein opening communication between said valve chamber and said mixing chamber, and means for moving said valve member and said valve sleeve from and to valve closing position with respect to said valve chamber and said other of the passages, respectively, said means including a structure common to said valve sleeve and said valve member for moving said valve sleeve and said valve member simultaneously from said valve closing position, said means including a structure common to said valve sleeve and said valve member for moving said valve sleeve and said valve member simultaneously from said valve closing position.

5. A nozzle for dispensing a plurality of different liquids to a point of merger below the nozzle, comprising a head structure having a nozzle tip at one end, a slidable valve sleeve on said tip and providing together with said head a valve chamber, a liquid discharge passage communicating with said chamber, said head providing a second valve chamber and having a liquid'discharge passage communicating therewith, a valve member in said second chamber and normally closing passage therefrom, a cap mounted on the lower end of said head and having its lower portion spaced from said valve sleeve, said head having diverging passages formed therein opening communication between said valve cha'mber formed in the head and the space between the cap and the valve sleeve, means for moving said valve member and said valve sleeve from and to valve closing position with respect to said head, said means includin a handle pivotally carried by the head, a member having camming engagement with respect to said handle 9 to said valve sleeve to valve closing position with respect to said head.

6. A nozzle" for dispensing a plurality of different'liquids to a point of merger below the nozzle, comprising a head structure havinga nozzle tip at one end, a slidable valve sleeve on said tip and. providing together with saidhead a valve chamber; a liquid discharge passage com:- municating with said chamber, said head providing a second valve chamber and having a liquid discharge passage communicating therewith, a valve member in said second chamber and having diverging passages formed therein opengo Number .10 her having camming engagement with respect to said handle for moving said valve member from valve closing position with respect to the valve chamber in said head, vertically movable pin members caj'ried by the head and engaging said valve sleevb and adapted to be engaged by said-gnember ahd be moved by said member to impartmovement to said valve sleeve to valve closing positicn with respect to said head. said cap having means for the liberation of excess gas from liquid entering said mixing chamber for passage through said outlet orifice.

RUDOLPH YUZA.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Name Date 1,466,760 Scribner et a1. Sept. 4, 1923 1,525,650

Koenlng Feb. 10, 1925