US3294546A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for popping corn
Assignee: General Foods Corp
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Filing: 1962-03-27
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Granted: 1966-12-27
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Expires: 1982-03-27
Abstract
No abstract record available.
Inventors
- 👤 Arthur L Fingerhut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:07
CPC Classifications
A; A23; A23L; A23L7/00; A23L7/10; A23L7/161; A23L7/174; A23L7/183
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
A METHOD OF POPPING KERNELS CONTINUOUSLY WHICH COMPRISES CIRCULATING HOT GAS UPWARDLY THROUGH A VERTICALLY DISPOSED POPPING ZONE IN A RECIRCULATION PATH AT A VELOCITY SUFFICIENT TO MAINTAIN A BED OF UNPOPPED KERNELS IN SUSPENSION IN SAID ZONE WHILE AIR-VEYING POPPED KERNELS UPWARDLY AWAY FROM SAID BED IN SAID ZONE, REMOVING IN POPPED KERNELS FROM SAID GAS AND RECIRCULATING THE GAS TO SAID ZONE AT SAID VELOCITY WHILE ADDING HEAT THERETO FROM A HEAT SOURCE UPSTREAM FROM SAID ZONE AT A CONSTANT RATE NORMALLY EQUAL TO THE HEAT LOSSES THEREFROM, MAINTAINING THE TEMPERATURE OF THE GAS-KERNEL MIXTURE IN SAID BED AT AN APPROXIMATELY CONSTANT VALUE BY DELIVERING RAW UPPOPED KERNELS INTO SAID PATH UPSTREAM FROM SAID ZONE AND DOWNSTREAM FROM SAID HEAT SOURCE AT AN AVERAGE RATE VARYING DIRECTLY WITH THE TEMPRATURE OF SAID GAS-KERNEL MIXTURE IN SAID BED, AND LIMITING THE TEMPERATURE OF SAID CIRCULATING GASES TO A PREDETERMINED MIXIMUM BY REDUCING SAID RATE OF HEAT SUPPLY IN RE-
Claim 2
Independent Claim
160 words
A METHOD OF POPPING KERNELS CONTINUOUSLY WHICH COMPRISES CIRCULATING HOT GAS UPWARDLY THROUGH A VERTICALLY DISPOSED POPPING ZONE IN A RECIRCULATION PATH AT A VELOCITY SUFFICIENT TO MAINTAIN A BED OF UNPOPPED KERNELS IN SUSPENSION IN SAID ZONE WHILE AIR-VEYING POPPED KERNELS UPWARDLY AWAY FROM SAID BED IN SAID ZONE, REMOVING IN POPPED KERNELS FROM SAID GAS AND RECIRCULATING THE GAS TO SAID ZONE AT SAID VELOCITY WHILE ADDING HEAT THERETO FROM A HEAT SOURCE UPSTREAM FROM SAID ZONE AT A CONSTANT RATE NORMALLY EQUAL TO THE HEAT LOSSES THEREFROM, MAINTAINING THE TEMPERATURE OF THE GAS-KERNEL MIXTURE IN SAID BED AT AN APPROXIMATELY CONSTANT VALUE BY DELIVERING RAW UPPOPED KERNELS INTO SAID PATH UPSTREAM FROM SAID ZONE AND DOWNSTREAM FROM SAID HEAT SOURCE AT AN AVERAGE RATE VARYING DIRECTLY WITH THE TEMPRATURE OF SAID GAS-KERNEL MIXTURE IN SAID BED, AND LIMITING THE TEMPERATURE OF SAID CIRCULATING GASES TO A PREDETERMINED MIXIMUM BY REDUCING SAID RATE OF HEAT SUPPLY IN RE-
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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) | 1969-12-26 | 1970-06-27 | 1970-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-26 | 1974-06-27 | 1974-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-26 | 1978-06-27 | 1978-12-27 | $7700.00 | Window Closed / Lapsed |