Patent US794838A successfully refreshed from Google Patents.
Patent US4137724A successfully refreshed from Google Patents.
US4137724A
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US
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Apparatus for producing ice
Assignee: Armalite Inc
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Filing: 1974-04-22
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Granted: 1979-02-06
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Expires: 1994-04-22
Abstract
Abstract An apparatus for the automatic production of ice from water filled stalls and comprised of means applying heat absorption thereto until an iced condition is reached, followed by the simultaneous application of heat thereto to thaw the stall-to-ice interfaces and of refill water thereto to eject the ice by means of floatation; and comprised of one or a series of stalls embraced by the evaporator of a refrigeration system having a hot gas bypass that is intermittently discharged through the evaporator simultaneously with refill water applied to the stall or stalls to eject the ice, a temperature sensor and refrigerant control alternately reacting to effect the iced and thaw conditions of the stall, thereby automatically cycling the apparatus for continued operation.
Inventors
- 👤 Robert W. Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 00:34
CPC Classifications
F; F25; F25C; F25C5/00; F25C5/02; F25C5/04; F25C5/08; F25C5/10; F25C1/00; F25C1/04; F25C1/06
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
175 words
An apparatus for automatically producing multi-form ice and comprising, a series of first to last stalls to be simultaneously filled with water, means alternately absorbing heat progressively from said first to last stalls for progressive ice maturity and progressively applying heat to said first to last stalls for progressive thawing, a water supply means applying floatation water into the stalls at a flow rate greater than the flow rate of water between the ice-to-stall interfaces when the ice is thawed, and a temperature sensor and control means selectively positioned at said last stalls and responsive to thawing and operatively coupled to said first mentioned means activating the same to absorb heat until said last stalls are iced and responsive to freezing and operatively coupled to said first mentioned means activating the same to apply heat until the ice-to-stall interfaces at said last stalls are thawed and operatively coupled to said water supply means activating the same to apply water into the stalls at said greater flow rate to float and eject the thawed ice therefrom.
Claim 2
Independent Claim
175 words
An apparatus for automatically producing multi-form ice and comprising, a series of first to last stalls to be simultaneously filled with water, means alternately absorbing heat progressively from said first to last stalls for progressive ice maturity and progressively applying heat to said first to last stalls for progressive thawing, a water supply means applying floatation water into the stalls at a flow rate greater than the flow rate of water between the ice-to-stall interfaces when the ice is thawed, and a temperature sensor and control means selectively positioned at said last stalls and responsive to thawing and operatively coupled to said first mentioned means activating the same to absorb heat until said last stalls are iced and responsive to freezing and operatively coupled to said first mentioned means activating the same to apply heat until the ice-to-stall interfaces at said last stalls are thawed and operatively coupled to said water supply means activating the same to apply water into the stalls at said greater flow rate to float and eject the thawed ice therefrom.
Claim 3
Dependent Claim
29 words
Apparatus for producing multi-form ice as set forth in claim 1 wherein the water and supply means applies floatation water under pressure beneath the ice formed in the stalls.
Claim 4
Dependent Claim
31 words
Apparatus for producing multi-form ice as set forth in claim 1 wherein the water supply means applies floatation water under pressure through an orifice beneath the ice formed in the stalls.
Claim 5
Dependent Claim
45 words
Apparatus for producing multi-form ice as set forth in claim 1 wherein the stalls are open topped with parallel side walls for uniform flow rate of floatation water between the ice-to-stall interfaces and a bottom with an orifice opening therethrough from the water supply means.
Claim 6
Dependent Claim
65 words
Apparatus for producing multi-form ice as set forth in claim 1 wherein the stalls are open topped with side walls parallel to an axis displaced from vertical for uniform flow rate of floatation water between the ice-to-stall interfaces and a bottom with an orifice opening therethrough from the water supply means, to float the thawed ice for ejection over the dipped side of the stalls.
Claim 7
Dependent Claim
63 words
Apparatus for producing multi-form ice as set forth in claim 1 wherein the water supply means applies floatation water under pressure beneath the ice formed in the stalls and wherein the stalls are open topped with parallel side walls for uniform flow rate of floatation water between the ice-to-stall interfaces and a bottom with an orifice opening therethrough from the water supply means.
Claim 8
Dependent Claim
83 words
Apparatus for producing multi-form ice as set forth in claim 1 wherein the water supply means applies floatation water under pressure beneath the ice formed in the stalls and wherein the stalls are open topped with side walls parallel to an axis displaced from vertical for uniform flow rate of floatation water between the ice-to-stall interfaces and a bottom with an orifice opening therethrough from the water supply means, to float the thawed ice for ejection over the dipped side of the stalls.
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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) | 1982-02-05 | 1982-08-07 | 1983-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-05 | 1986-08-07 | 1987-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-05 | 1990-08-07 | 1991-02-06 | $7700.00 | Window Closed / Lapsed |