US3818977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thawing frozen food
Assignee: KUEPPERSBUSCH
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Filing: 1972-03-30
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Granted: 1974-06-25
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Expires: 1992-03-30
Abstract
Abstract A method and apparatus for thawing blocks of frozen food by vibrating them on a grate within a thawing chamber while they are thawed by circulating hot air. The vibrations cause pieces to be ejected from a block after the required amount of heat has been supplied to melt these pieces. The ejected pieces are received in a collecting vessel which is maintained at a predetermined temperature to bring these pieces to serving temperature.
Inventors
- 👤 A Lohr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:14
CPC Classifications
A; A23; A23B; A23B2/00; A23B2/80; A23B2/82
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A method for thawing blocks of frozen food in an externally accessible thawing chamber in which the blocks are thawed by means Of circulating hot air, comprising the steps of: a. placing a block of frozen food on a vibration producing device disposed within the thawing chamber; b. causing a stream of hot air at a controlled high temperature to flow past the block; c. operating the vibration producing device at an optimum frequency to keep the block of frozen food continuously moving on the device, for causing pieces of the block of frozen food to separate from the block after the required amount of heat for melting these pieces has been supplied; d. collecting the separated pieces in a vessel which is associated with the thawing chamber; and e. maintaining the vessel at a controlled temperature to bring the pieces therein to consumption temperature.
Claim 2
Independent Claim
145 words
A method for thawing blocks of frozen food in an externally accessible thawing chamber in which the blocks are thawed by means Of circulating hot air, comprising the steps of: a. placing a block of frozen food on a vibration producing device disposed within the thawing chamber; b. causing a stream of hot air at a controlled high temperature to flow past the block; c. operating the vibration producing device at an optimum frequency to keep the block of frozen food continuously moving on the device, for causing pieces of the block of frozen food to separate from the block after the required amount of heat for melting these pieces has been supplied; d. collecting the separated pieces in a vessel which is associated with the thawing chamber; and e. maintaining the vessel at a controlled temperature to bring the pieces therein to consumption temperature.
References Cited (Backward Citations)
US3682643A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-24 | 1977-12-24 | 1978-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-24 | 1981-12-24 | 1982-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-24 | 1985-12-24 | 1986-06-25 | $7700.00 | Window Closed / Lapsed |