US3591051A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control to proportion ingredients supplied to drink dispensers
Assignee: John E Mitchell Co
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Filing: 1969-03-17
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Granted: 1971-07-06
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Expires: 1989-03-17
Abstract
Abstract A control for proportioning ingredients supplied to a drink dispenser. A housing having separate water, syrup and carbon dioxide chambers. A slide reciprocative within the housing and having walls defining a wall of each chamber. Reciprocations of the slide alternately expand and contract the volumes of the chambers while maintaining desired relative proportions of the water, syrup and carbon dioxide. Valves operate in response to reciprocation of the slide to control the introduction of ingredients to and the discharge from their respective chambers, the slide being reciprocative in response to alternate introduction of ingredients to respective chambers.
Inventors
- 👤 Orville Mitchell
- 👤 John D Harris
- 👤 Dudley C Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:44
CPC Classifications
B; B67; B67D; B67D1/00; B67D1/08; B67D1/12; B67D1/1284; B67D1/1286; B67D1/1288; B67D1/0015; B67D1/0016; B67D1/0042; B67D1/0043; B67D1/0044; B67D1/0046; B67D1/0047; B67D2210/00; B67D2210/00028; B67D2210/00099; B67D2210/00104
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
246 words
A control for supplying ingredients to a drink dispenser the control comprising a slide housing, a slide reciprocative within the slide housing, the slide having first, second and third faces, the first face cooperating with walls of the slide housing to define a carbon dioxide chamber, the second face cooperating with walls of the slide housing to define a water chamber, the third face cooperating with walls of the slide housing to define a syrup chamber, means to supply carbon dioxide to the carbon dioxide chamber for driving the slide in one direction of reciprocation, means to supply water to the water chamber to drive the slide in an opposite direction of reciprocation, means to deliver carbon dioxide from the carbon dioxide chamber to the drink dispenser, means to deliver water from the water chamber to the drink dispenser means to deliver syrup to the syrup chamber, means to deliver syrup from the syrup chamber to the drink dispenser, valve means operable in response to reciprocations of the slide for blocking the admission of water to the water chamber and unblocking the delivery of water from the water chamber to the dispenser when carbon dioxide is admitted to the carbon dioxide chamber and vice versa, and valve means for blocking the supply of carbon dioxide to the carbon dioxide chamber and unblocking the delivery of carbon dioxide from the carbon dioxide chamber to the dispenser when water is supplied to the water chamber and vice versa.
Claim 2
Dependent Claim
246 words
A control for supplying ingredients to a drink dispenser the control comprising a slide housing, a slide reciprocative within the slide housing, the slide having first, second and third faces, the first face cooperating with walls of the slide housing to define a carbon dioxide chamber, the second face cooperating with walls of the slide housing to define a water chamber, the third face cooperating with walls of the slide housing to define a syrup chamber, means to supply carbon dioxide to the carbon dioxide chamber for driving the slide in one direction of reciprocation, means to supply water to the water chamber to drive the slide in an opposite direction of reciprocation, means to deliver carbon dioxide from the carbon dioxide chamber to the drink dispenser, means to deliver water from the water chamber to the drink dispenser means to deliver syrup to the syrup chamber, means to deliver syrup from the syrup chamber to the drink dispenser, valve means operable in response to reciprocations of the slide for blocking the admission of water to the water chamber and unblocking the delivery of water from the water chamber to the dispenser when carbon dioxide is admitted to the carbon dioxide chamber and vice versa, and valve means for blocking the supply of carbon dioxide to the carbon dioxide chamber and unblocking the delivery of carbon dioxide from the carbon dioxide chamber to the dispenser when water is supplied to the water chamber and vice versa.
Claim 3
Dependent Claim
18 words
The control of claim 1 with check valves in the syrup-delivering means to prevent reverse flow of syrup.
Claim 4
Dependent Claim
35 words
The control of claim 1 including a diaphragm extending between the first face of the slide and the slide housing and a diaphragm extending between the second face of the slide and the slide housing.
Claim 5
Dependent Claim
51 words
The control of claim 1 wherein the maximum volume of the carbon dioxide chamber is substantially equal to the combined maximum volumes of the water and syrup chambers, and means to regulate the supply pressure of carbon dioxide to the carbon dioxide chamber to about twice the pressure within the dispenser.
Claim 6
Dependent Claim
48 words
The control of claim 1 including means to regulate the supply pressure of carbon dioxide supplied to the carbon dioxide chamber in predetermined relationship to the pressure in the dispenser and to the volume of the carbon dioxide relative to the volumes of the water and syrup chambers.
Claim 7
Dependent Claim
25 words
The control of claim 1 including means responsive to movements of the slide to reverse movement of the slide at each end of reciprocation thereof.
Claim 8
Dependent Claim
32 words
The control of claim 6 wherein the means to reverse movement of the slide includes a switch actuated by a lever arm, and means on the slide to move the lever arm.
Claim 9
Dependent Claim
47 words
The control of claim 1 wherein the slide comprises first and second pistons, the first and second faces being on the first piston and the third face being on the second piston, and means for mounting the second piston for sliding movement relative to the first piston.
Claim 10
Dependent Claim
39 words
The control of claim 8 including means to adjust the distance of sliding movemenT of the second piston relative to the first piston to adjust the volumetric rate of pumping syrup relative to the volumetric rate of pumping water.
References Cited (Backward Citations)
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US3138294A
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US3138290A
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US3355561A
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US3394847A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-05 | 1975-01-04 | 1975-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-05 | 1979-01-04 | 1979-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-05 | 1983-01-04 | 1983-07-06 | $7700.00 | Window Closed / Lapsed |