US3874189A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for producing frozen confections
Assignee: Individual
•
Filing: 1973-05-02
•
Granted: 1975-04-01
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Expires: 1993-05-02
Abstract
Abstract A machine for producing frozen confections such as ice cream, or the like, wherein liquid mix is delivered from a storage tank through a freezing chamber to a draw-off valve from which the frozen mix is dispensed to cones or cups. The machine is characterized by a mix tank arrangement which utilizes disposable flexible bags removably confined within a rigid container which arrangement eliminates the necessity of returning mix tanks to the dairy for sterilization and refill. The machine is further characterized by a mix tank arrangement which utilizes a gaseous propellant to agitate the mix as well as to propel the mix through the machine thereby achieving homeogenity of mix without the need for special shaking machines.
Inventors
- 👤 Thomas F Calim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:00
CPC Classifications
A; A23; A23G; A23G9/00; A23G9/04; A23G9/22; A23G9/20
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
153 words
A machine for dispensing soft ice cream or the like comprising, in combination, frame means; heat exchanger means for chilling a mix; a metering valve for sequentially dispensing portions of said mix from said heat exchanger means; a refrigerated storage compartment on said frame means; a pressurized mix tank mounted in said storage compartment and comprising a tank inlet and a tank outlet; a flexible mix bag removably mounted in said mix tank and including a sanitary bag interior sealed from said tank and a bag outlet; gas delivery conduit means for delivering a flow of gas to pressurize said mix and extending outwardly through said tank inlet to a source of pressurized gas; mix delivery conduit means communicating with said bag outlet means and extending outwardly through said tank outlet to said heat exchanger means; and disconnect means in said conduit means for connecting and disconnecting mix bags to said conduit means.
Claim 2
Dependent Claim
153 words
A machine for dispensing soft ice cream or the like comprising, in combination, frame means; heat exchanger means for chilling a mix; a metering valve for sequentially dispensing portions of said mix from said heat exchanger means; a refrigerated storage compartment on said frame means; a pressurized mix tank mounted in said storage compartment and comprising a tank inlet and a tank outlet; a flexible mix bag removably mounted in said mix tank and including a sanitary bag interior sealed from said tank and a bag outlet; gas delivery conduit means for delivering a flow of gas to pressurize said mix and extending outwardly through said tank inlet to a source of pressurized gas; mix delivery conduit means communicating with said bag outlet means and extending outwardly through said tank outlet to said heat exchanger means; and disconnect means in said conduit means for connecting and disconnecting mix bags to said conduit means.
Claim 3
Dependent Claim
27 words
The machine defined in claim 1 wherein said flexible mix bag includes a bag inlet; and wherein said gas delivery conduit means communicates with said bag inlet.
Claim 4
Dependent Claim
29 words
The machine defined in claim 2 wherein the gas delivery conduit means includes an inner conduit portion provided with gas discharge orifice means for discharging gases within the mix.
Claim 5
Dependent Claim
23 words
The machine of claim 1 wherein said metering valve includes a valve inlet in direct communication with outlets of said heat exchanger means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-31 | 1978-09-30 | 1979-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-31 | 1982-09-30 | 1983-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-31 | 1986-09-30 | 1987-04-01 | $7700.00 | Window Closed / Lapsed |