Patent US3172998A successfully refreshed from Google Patents.
US3172998A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heating apparatus
Assignee: Lanteris Space LLC
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Filing: 1962-06-27
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Granted: 1965-03-09
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Expires: 1982-06-27
Abstract
No abstract record available.
Inventors
- 👤 Jr Harry D Ferguson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:31
CPC Classifications
H; H05; H05B; H05B1/00; H05B1/02; H05B1/0202; H05B1/0213
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
IN COOKING RANGE APPARATUS, THE COMBINATION COMPRISING: AN OVEN; AN ELECTRIC HEATER FOR SAID OVEN; A SOURCE OF ELECTRICAL ENERGY; TEMPERATURE RESPONSIVE ELECTRICAL SWITCH MEANS FOR CYCLICALLY CONNECTING SAID HEATER TO SAID SOURCE OF ENERGY, SAID SWITCH MEANS INCLUDING ROTATABLE WHEEL AND SHAFT MEANS MOVABLE BETWEEN A REST POSITION AND A PLURALITY OF OTHER POSITIONS AND ADAPTED UPON BEING MOVED TO MODIFY THE TEMPERATURES AT WHICH SAID SWITCH OPERATES TO CYCLE SAID HEATER; SPRING MEANS DISPOSED AND ADAPTED TO URGE SAID WHEEL AND SHAFT MEANS FROM ANY OF SAID PLURALITY OF POSITIONS TO SAID REST POSITION; A FLEXIBLE AND RESILIENT BIMETALLIC STRIP DISPOSED IN FORCIBLE FRICTIONAL ENGAGEMENT WITH SAID WHEEL AND ADAPTED TO MAINTAIN THE POSITION OF SAID SHAFT MEANS AGAINST THE FORCE OF SAID SPRING MEANS; AND HEATER MEANS ENERGIZABLE AND ADAPTED TO HEAT SAID BIMETALLIC STRIP TO BEND IT AWAY FROM SAID WHEEL AND SHAFT MEANS, WHEREBY TO ACCOMMODATE RETURN OF THE LATTER BY SAID SPRING MEANS TO SAID REST POSITION.
Claim 2
Dependent Claim
163 words
IN COOKING RANGE APPARATUS, THE COMBINATION COMPRISING: AN OVEN; AN ELECTRIC HEATER FOR SAID OVEN; A SOURCE OF ELECTRICAL ENERGY; TEMPERATURE RESPONSIVE ELECTRICAL SWITCH MEANS FOR CYCLICALLY CONNECTING SAID HEATER TO SAID SOURCE OF ENERGY, SAID SWITCH MEANS INCLUDING ROTATABLE WHEEL AND SHAFT MEANS MOVABLE BETWEEN A REST POSITION AND A PLURALITY OF OTHER POSITIONS AND ADAPTED UPON BEING MOVED TO MODIFY THE TEMPERATURES AT WHICH SAID SWITCH OPERATES TO CYCLE SAID HEATER; SPRING MEANS DISPOSED AND ADAPTED TO URGE SAID WHEEL AND SHAFT MEANS FROM ANY OF SAID PLURALITY OF POSITIONS TO SAID REST POSITION; A FLEXIBLE AND RESILIENT BIMETALLIC STRIP DISPOSED IN FORCIBLE FRICTIONAL ENGAGEMENT WITH SAID WHEEL AND ADAPTED TO MAINTAIN THE POSITION OF SAID SHAFT MEANS AGAINST THE FORCE OF SAID SPRING MEANS; AND HEATER MEANS ENERGIZABLE AND ADAPTED TO HEAT SAID BIMETALLIC STRIP TO BEND IT AWAY FROM SAID WHEEL AND SHAFT MEANS, WHEREBY TO ACCOMMODATE RETURN OF THE LATTER BY SAID SPRING MEANS TO SAID REST POSITION.
References Cited (Backward Citations)
US1702480A
Cited
US2767293A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-08 | 1968-09-07 | 1969-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-08 | 1972-09-07 | 1973-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-08 | 1976-09-07 | 1977-03-09 | $7700.00 | Window Closed / Lapsed |