Patent US1972124A successfully refreshed from Google Patents.
US3275802A
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Pulsed heating system
Assignee: Reynolds Elect & Eng
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Filing: 1963-11-08
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Granted: 1966-09-27
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Expires: 1983-11-08
Abstract
No abstract record available.
Inventors
- 👤 Edward J Vandivere
- 👤 Lawson M Phyfe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:16
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/19; G05D23/20; G05D23/24; G05D23/1927; G05D23/193; G05D23/1931
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
63 words
A HEATING SYSTEM COMPRISING A HEATER, A DIRECT CURRENT PULSATING SOURCE FEEDING SAID HEATER, A FIRST MEANS SENSITIVE TO THE TEMPERATURE OF SAID HEATER TO CONTROL THE REPETITION RATE OF THE PULSES APPLIED TO THE HEATER, AND OTHER MEANS OF LESS SENSITIVITY THAN THE FIRST MEANS, SENSITIVE TO AMBIENT TEMPERATURES UNINFLUENCED BY SAID HEATER TO ADDITIONALLY CONTROL THE AVERAGE TEMPERATURE OF THE HEATER.
References Cited (Backward Citations)
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US3069087A
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US2981479A
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US3107285A
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US3149224A
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US3161759A
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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) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |