US3339628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically controlled heating system
Assignee: Motors Liquidation Co
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Filing: 1966-08-15
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Granted: 1967-09-05
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Expires: 1986-08-15
Abstract
No abstract record available.
Inventors
- 👤 William L Sones
- 👤 James O Elliott
- 👤 George A Neyhouse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:52
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/19; G05D23/20; G05D23/24; F; F24; F24F; F24F11/00; F24F11/30; G05D23/1927; G05D23/193; G05D23/1931
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
IN AN ENVIRONMENTAL CONDITIONING SYSTEM, THE COMBINATION OF, MEANS FOR HEATING A MASS OF AIR, MEANS INCLUDING ELECTRIC MOTOR MEANS FOR CIRCULATING THE MASS OF AIR IN HEAT TRANSFER CONTACT WITH SAID HEATING MEANS AND FOR DISTRIBUTING THE MASS OF AIR TO AN ENVIRONMENT TO BE CONDITIONED, CIRCUIT MEANS FOR OPERATING SAID HEATING MEANS, SAID CIRCUIT MEANS INCLUDING COMPUTER CONTROL MEANS HAVING SEMICONDUCTOR SWITCH MEANS IN POWER SUPPLY RELATIONSHIP WITH SAID MOTOR MEANS, MEANS FOR DERIVING A CONTROL VOLTAGE IN RESPONSE TO PREDETERMINED OPERATING CONDITIONS OF SAID MOTOR MEANS, SAID COMPUTER CONTROL MEANS INCLUDING MEANS FOR PROCESSING SAID CONTROL VOLTAGE TO CONTROL THE CONDUCTIVITY OF SAID SEMICONDUCTOR SWITCH MEANS FOR MAINTAINING SAID ELECTRIC MOTOR MEANS AT A PREDETERMINED SPEED NORM, AND COMFORT CONTROL MEANS FOR VARYING THE CONDITIONING EFFECT OF SAID HEATING MEANS BY INFINITELY VARYING THE EFFECT OF SAID CONTROL VOLTAGE ON SAID SEMICONDUCTOR SWITCH MEANS WITHIN PREDETERMINED LIMITS.
Claim 2
Dependent Claim
150 words
IN AN ENVIRONMENTAL CONDITIONING SYSTEM, THE COMBINATION OF, MEANS FOR HEATING A MASS OF AIR, MEANS INCLUDING ELECTRIC MOTOR MEANS FOR CIRCULATING THE MASS OF AIR IN HEAT TRANSFER CONTACT WITH SAID HEATING MEANS AND FOR DISTRIBUTING THE MASS OF AIR TO AN ENVIRONMENT TO BE CONDITIONED, CIRCUIT MEANS FOR OPERATING SAID HEATING MEANS, SAID CIRCUIT MEANS INCLUDING COMPUTER CONTROL MEANS HAVING SEMICONDUCTOR SWITCH MEANS IN POWER SUPPLY RELATIONSHIP WITH SAID MOTOR MEANS, MEANS FOR DERIVING A CONTROL VOLTAGE IN RESPONSE TO PREDETERMINED OPERATING CONDITIONS OF SAID MOTOR MEANS, SAID COMPUTER CONTROL MEANS INCLUDING MEANS FOR PROCESSING SAID CONTROL VOLTAGE TO CONTROL THE CONDUCTIVITY OF SAID SEMICONDUCTOR SWITCH MEANS FOR MAINTAINING SAID ELECTRIC MOTOR MEANS AT A PREDETERMINED SPEED NORM, AND COMFORT CONTROL MEANS FOR VARYING THE CONDITIONING EFFECT OF SAID HEATING MEANS BY INFINITELY VARYING THE EFFECT OF SAID CONTROL VOLTAGE ON SAID SEMICONDUCTOR SWITCH MEANS WITHIN PREDETERMINED LIMITS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-04 | 1971-03-06 | 1971-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-04 | 1975-03-06 | 1975-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-04 | 1979-03-06 | 1979-09-05 | $7700.00 | Window Closed / Lapsed |