|Publication number||US2934243 A|
|Publication date||Apr 26, 1960|
|Filing date||May 7, 1958|
|Priority date||May 7, 1958|
|Publication number||US 2934243 A, US 2934243A, US-A-2934243, US2934243 A, US2934243A|
|Inventors||Metzger John A|
|Original Assignee||Stanley Knight Corp|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (8), Referenced by (13), Classifications (14)|
|External Links: USPTO, USPTO Assignment, Espacenet|
, April 26, 1960 J. A. METzGER DISPENSING APPARATUS Filed May '7. 1958 United States DISPENSlNG APPARATUS John A. Metzger, Chicago, Ill., assignor to Stanley Knight Corporation, Chicago, lll., a corporation Application May 7, 1958, Serial No. 733,562
7 Claims. (Cl. 222-145) My invention resides in the iield of dispensing apparatus and is particularly utilized in the soda fountain equipment trade for dispensing fountain beverages.
Accordingly, a primary object of my invention is the provision of a dispensing assembly composed of a dispenser unit, a supply unit and a flow regulating unit.
Yet another object is the provision of a dispenser assembly whereby any individual unit of the assembly may be speedily and easily removed by a single simple adjustment without removing the other units.
Another object is the provision of a dispensing assembly having a dispensing spout which may serve as a mixing point, flow restrictor, and delivery spout for a variety of dispensed beverages such as pure soda water, carbonated mixed drink, pure syrup, plain water, or noncarbonated mixed drinks.
Another object is the provision of a syrup or pin point soda delivery structure which may be readily adjusted to vary the rate of flow of syrup or to obtain the proper mix of soda or plain water with the syrup.
Another object is the provision of a syrup delivery tube which will prevent the residual syrup in the spout from dripping after the delivery pressure is shut off.
Yet another object is the provision of a simple adjustment whereby sealing engagement between the engaging surfaces of the individual component units may be easily and quickly obtained by manipulation ofv a single sealing and adjusting means.
Another object is the provision of a dispensing assembly including a dispenser unit, a supply unit, a normally electrically operated flow regulating unit, and stand-by manually operated actuating means to permit continued operation of the latter unit in the event of a power failure.
Other objects will become apparent from time to time throughout the course of the following specication.
My invention is illustrated more or less diagrammatically in the following drawings, wherein:
Figure 1 is a perspective View showing a plurality of my dispensing units assembled in a soda fountain;
Figure 2 is a sectional View of my dispensing assembly; and
Figure 3 is a partial sectional view of a modification of my dispensing assembly.
Like reference numerals will be used to indicate like parts throughout the specification.
Referring now to the drawings, and particularly to Figure l, a perspective View of my dispenser assembly suitable for installation in a fountain or other mounting means is shown. The fountain unit shown consists of a cover assembly with a mounting face and a pair of side adjusting knobs 12 and 14 for a purpose to be explained hereafter. A plurality of dispenser assemblies including dispenser units each having a discharge outlet for the drink to be dispensed are shown mounted on the forefront of the mounting face and each dispenser unit has an actuating bar 16. The actuating bar is operated by hand pressure or by the impingement of a glass passage 26.
as shown. Suitable conventional Wiring mechanism initiates operation of the dispenser assembly to cause ow of the drink through the dispensing unit and into the glass 18 as indicated in Figure 1.
Turning now to Figure 2 -my dispenser assembly is shown as consisting essentially of three parts including a dispenser unit 20, a flow regulating unit 70 consisting of a pair of flow regulators 71 and 72 and a supply unit 50.
The dispenser unit 20 consists `of a spout 22 made of either molded plastic or metal which fits into an aperture 11 in the mounting face 10. The mounting face 10 serves as a support for the dispenser units 20. As illustrated in Figure 2 the spout is mounted in a position downwardly inclined with respect to the horizontal and is held in place by means of C-retainer washer 23 which ts into a suitable external groove 24 of the spout. The washer 23 projects outwardly beyond the exterior surface of the spout so that upon contact of the washer with the mounting face 10 further forward and downward movementof the spout will be prevented.
The spout may include any suitable number of passages for dispensing liquids but I preferably employ an upper passage 26 and a lower passage 28. Although I have shown passages of different diameters, it will be understood that the diameters may be varied to adapt to the ow characteristics of the liquid to be dispensed. Upper Vpassage 26 terminates forwardly in an internally threaded substantially vertical bore 27 making an angle of slightly greater than with respect to the axis of Directly in line with threaded bore 27 and extending upwardly into the body of the spout I have shown a recessed area 27a the purpose of which will be explained hereinafter.
Upper passage 26 and lower passage 28 meet at a junction 30 which in elect forms a mixing chamber having a discharge outlet 32.
A syrup orpin point soda deliverytube is indicated at 3.4 and has an upper externally threaded portion 36 in engagement with the threaded bore 27. Thus tube 34 is vertically adjustable in bore 27. An upper smooth surfaced or anged portion 35 extends into passage 26 directly in line with the internal recess 27a. in the lower end of the tube may be used for the reception of an adjusting tool so that the position of the delivery tube may be adjusted while the tube is in place in the spout.
At the inner or right hand end of the spout I have shown a hub 38 which forms an extension of upper passage 26 projecting substantially beyond the inner surface 39 of the spout. The lower passage 28 terminates in an internal recess 40 to thereby form a shoulder for the reception of a soda water restrictor or a plain water insert bushing 41. The soda water restrictor illustrated may be formed with a plurality of cross drilled holes 42, whereas a plain water bushing will usually be formed with a single, central bore. The portion of the restrictor received within the spout will be of a lesser diameter than lower passage 2S to permit liow of the soda toward the mixing chamber. The plain water insert may also be of a reduced diameter.
At the right side of my dispenser assembly a supply unit is indicated generally at 50 and consists of a clamp.
ceived within the channel 52 `are a pair of clamp screws4 54 and 56. Upper clamp screw S4 impinges upon a iitting 58 having a projecting portion 59 engaging a suitable bore 73 in a conduit 79 along the bottom of upper A groove 37 solenoid 76. Lower clamp screw 56 impnges upon a similar fitting 60 having a projecting portion 61 received within a similar bore 74 in the lower solenoid 78 Clamp screws 54 and 56, in association with support 52 serve as adjustable sealing and securing means as moreY fully described below. Suitable leader lines -62 and 64 are connected to the supplyttings 58 and 60 Vrespectively and to suitable sources of either soda,syrup, plain Water or drink beverage. It will be understood that the connection to these sources are conventional and accordingly have not been illustrated. The sources will usually be under pressure which may be created by gravity or carbon dioxide or any other suitable means. Y interposed -between the dispenser spout unit 20 and the supply unit G is a pair of actuating or flow regulators 71 and 72 consisting essentially of 'an upper solenoid valve 76 and a lower solenoid valve 78. Upper solenoid valve 76 has an internal conduit 79 terminating in bores 73 and 81. Bore 81 is of a suliicient diameter ceives projection 59 of the supply connection fitting.
Solenoid 76 has a plunger 83 adapted to reciprocate between a position above the conduit 79 to a position below it whereby communication between the supply fitting 58 and passage 26 of the spout is cut olf, lSolenoid 78 has a similar plunger 84 adapted to reciprocate between a position below conduit 80 in ow regulator 72 to a position above it whereby communication between the supply unit 60 and passage 28 of the spout is cut oi. Bore 81a in ow regulator 72 receives the soda water restrictor or plain water insert bushing 41 and may have a diameter equal to bore 81 so that the flow regulators are completely interchangeable.
The knobs 12 and 14 (Figure 1) provide mechanical means to manually operate the solenoid valves in the event of a power failure. Turning the knob actuates a small lever within the valve which lifts the valve plunger and thereby permits flow of the material being controlled without electrically actuating the solenoid coil.
O-ring seals 63, 63a, 65 and 66 encircle upper and lower littings 58 and 60 respectively and hub 38 and soda restrictor or plain water insert bushing 41 respectively.Y
These rings seal the connections between the leader line ttings and the solenoid valves and between the solenoid valves and the spout.
In Figure 3 the syrup or pin point soda delivery tube has an insert or pin soda ow restrictor 34a therein.
This ilow restrictor has at least one internal passage 34b which substantially lessens the cross-sectional area of the delivery tube 34.
The use and operation of my invention is as follows: When my dispensing assembly is used to dispense a mixed drink, the operating bar 16 below the spout is depressed either by the drink container or the fountainV passage down to the mixing chamber 30. Actuation of` the operating bar also causes retraction of plunger 84 which permits soda or plain water to flow through the restrictor or insert bushing 41 and into the lower passage 28 where it mixes with the syrup in chamber 30. Should a power failure occur which prevents energization of the coil of the solenoid, the attendant may still dispense drinks by turning the knobs 12 or 14 which will mechanically retract the plungers.
The soda or plain water tends to wash down the syrup tube so that a subsequent draught of water will not be flavored by any residual syrup. The bore of the mixing chamber 30 is formed substantially smoothly so rasage/isY Y f 4 that although there will be a sufcient mixture of the soda and syrup in the mixing chamber to prevent separation of the liquids in a glass, the carbon dioxide will not be expelled and thus produce a at drink. In other words the force of the combined stream of soda or plain water and syrup hitting the glass or the mixture already in the glass will produce anal mixing action to thereby yield a sparkling, lively drink.
An important feature of my invention is the provision of the opstanding flange 35 on the upper end of the soda delivery tube 34, which, in conjunction with the internal recess 27a at the left end of upper passage 26, provides a convenient, simple and ecient drip eliminator. In
i' order to promote instant flow of the syrup through the l the start.
spout, I preferably incline the spout slightly with respect to the horizontal. If the syrup flow begins instantly, the mixing action in chamber 30 will also begin immediately and the drink will be properly proportioned right from When the passage containing the syrup is inclined however, the problem of dripping is intensified.' By verticaladjustment of the delivery tube 34 .drip con' trol may be obtained in two ways. First, flange 35 forms a dam or dike at the end of passage 27 which prevents a residual amount of syrup between the extended plunger- 83 and the recessed portion of the passage 26 from drib bling down the tube. In many instances the mere dike effect of this projection will be sutlicient to prevent a dripping but with some syrups it may secondly be desirable to adjust the delivery tube so that the clearance between the top of 4the tube and the corner of the recess 27a is such that the inherent viscosity of the syrup will prevent flow of the syrup through that aperture andl down the delivery tube, Upon application of a slight amount of pressure the syrup will be instantly forced over the top lip of flange 35 and down the delivery tube.
It will be observed that the internal diameter of tube 34 is less than that of passage 26 with which the tube 34 Y is associated. Consequently, member 34 serves as a com- Y Vbination delivery tube and flow restrictor.
, aitect the dike or darn etiect of the upper extension of tube 34.
It will be understood that whereas in Figure 2 I havel shown a dispenser assembly suitable for dispensing syrup from the upper passage and either soda or plain water from the lower passage, this is not essential. When soda` or plain water flows through the upper passage 26 and syrup through the lower passage, it may be highly desir? able to increase the mixing action by the use of a restrictor 34a.
locity of the soda or water` Thus, without changing the line pressure, a much greater mixing action can be ob-- tained.
Following the same principle, the soda water restrictor' 41 is effective to break up the ow of soda water to promote better mixing action.
Either gas under pressure or static pressure created` by maintaining the source of supply higher than the dispensing assembly may be used to initiate syrup How. f
It will be observed that the mounting face 10 and support channel 52 have positioned between them an inner portion of the dispensing unit 20, the entire mechanisml of the regulating unit 70 and supply unit 50, the retainer 23 being eie'ctive to hold the inner end of dispensing unit' member 20 between mounting face 10 and support 52.' Adjustable securing and sealing means are provided by` the clamp screws 54, 56. When the screws 54,156 are" in extended position, as illustrated for example in Figure 2, they are effective to cause engagement between the` The restrictor limits the ow and increases the ve-` www parts are shown in Figure 2. Similarly, when the members 54, 56 are retracted from the position shown in Figure 2 or, as the parts are illustrated in Figure 2, when the members 54, S6 are moved longitudinally to the right, it will be clear that fittings 58, 60 may be easily and simply removed from the entire assembly without disturbing members 20 and 70. Similarly member 70 can be removed by a mere retrograde movement of fitting 58, 60 and member 70. In like manner, dispenser unit 20 may, when members 54, 56 are retracted, be removed by the simple expedient of retracting retaining washer 23 and thereafter sliding the dispenser unit 20 outwardly through aperture 11 in mounting base 10.
While I have described and shown a preferred embodiment and a variation of my invention, it will be understood that many variations may be made without departing from the essential spirit and scope of my invention.
Accordingly, the drawings and description are intended to be illustrative only and not definitive, and I do not Wish to be limited except by the scope of the following appended claims.
l. A dispensing assembly for dispensing both low and high viscosity liquids including a dispenser unit having at least a rst passage and a second passage, the passages meeting at a junction to form a mixing point and a discharge outlet leading from the mixing point, at least one of the passages having an adjustable liow restricter whereby the volume rate of iiow through that passage may be varied, at least one supply unit leading to a source of liquid to be dispensed communicating with the dispenser unit, and means for controlling the ow of liquid from the supply unit to the dispenser unit and out the discharge outlet, at least a portion of said rst passage being inclined with respect to the horizontal, said first passage further including a generally vertical portion, said adjustable ow restrictor being positioned in the generally vertical portion with its upper end projecting into the inclined portion to form an overflow dam.
2. The dispenser assembly of claim 1 further characterized by and including means for adjustably positioning the upper end of the ow restrictor in the inclined portion of the rst passage.
3. The dispenser assembly of claim 1 further characterized in that the flow restrictor is vertically adjustable and the inclined portion of the rst passage is recessed in the line of movement of the ow restrictor to thereby permit positioning of the flow restrictor in the inclined portion.
4. A dispenser assembly for dispensing both low and high viscosity liquids including a dispenser unit having at least one inlet passage and a discharge passage, a supply unit communicating with the dispenser unit and adapted for communication with a source of liquid, means for regulating the liow of liquid through the assembly, rst support means for the dispenser unit, second support means for the supply unit, said lrst support means including a supporting face slightly inclined from the vertical and having an aperture therein for reception of the dispenser unit, the dispenser unit having a peripheral groove, and a retainer structure positioned within the groove for anchoring the dispenser unit to the supporting face, and means for clamping said supply unit, regulating means and dispenser unit together, the action of said clamping means being resisted by said retainer structure.
5. A dispenser assem-bly adapted to be mounted at an angle with the horizontal on a first support including a dispenser unit having a lrst passage with a portion inclined to the horizontal and a second passage, the said passages meeting at a junction and a third passage leading therefrom to discharge, at least one flow restrictor disposed in one of the ow passages, the dispenser unit having a groove on a portion of its periphery, retainer means cooperable with the peripheral groove of the dispenser unt to secure the unit to the lirst support, a supply unit adapted -for connection to at least one source of iiuid under pressure, a ow regulating unit disposed between and having a passage communicating with the dispenser unit and the supply unit, a iiow regulator disposed within the flow regulating unit, external actuating means connected to the ow regulator adapted to close communication between the dispenser unit and the supply unit, a second support, and adjustable sealing and securing means carried by the second support and engageable with the supply unit and operable upon movement in one direction to cause the mutually engaging surfaces of the Idispenser unit, the regulating unit, and the supply unit to form a tight engagement.
6. The dispenser assembly of claim 5 further characterized by and including a second ow restrictor located within the rst named iiow restrictor, said second ow restrictor having an internal passage in axial alignment with the passage through said first-named liow restrictor and of less diameter than the passage through said firstnamed ow restrictor.
7. The dispenser assembly of claim 5 in which the inclined rst passage is formed with an internal recess, said How restrictor being adjustably positioned in a substantially vertical portion of the first passage with its upper end projecting into the inclined portion to form a vert-ically adjustable ow dam, the internal recess in the inclined portion being substantially in the path of movement of the rst How restrictor.
References Cited in the file of this patent UNITED STATES PATENTS 1,603,082 Jacobs Oct. 12, 1926 2,139,735 Dobkns Dec. 13, 1938 2,146,930 Bassett Feb. 14, 1939 2,371,432 DiPietro Mar. 13, 1945 2,535,835 Burgess Dec. 26, 1950 2,573,888 Benjamin et al Nov. 6, 1951 2,597,093 Gottlieb et al. May 20, 1952 2,845,964 Harland Aug. 5, 1958
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|U.S. Classification||222/145.7, 62/390, 222/571, 137/607, 141/361, 222/173, D07/308|
|International Classification||B67D1/00, A23G9/28, A23G9/04|
|Cooperative Classification||B67D1/0085, A23G9/282|
|European Classification||A23G9/28D2, B67D1/00H8C|