US3267994A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Household conditioning system
Assignee: Motors Liquidation Co
•
Filing: 1964-08-31
•
Granted: 1966-08-23
•
Expires: 1984-08-31
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
2026-10-24 14:56
CPC Classifications
F; F24; F24F; F24F3/00; F24F3/06; F24F11/00; F24F11/30; F24F11/62; F24F11/63; F24F11/70; F24F11/72; F24F11/74; F24F11/77; F24F11/80; F24F11/86; F24F11/88; F24F2110/00; F24F2110/10; F24F2140/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
168 words
IN COMBINATION, MEANS INCLUDING AN A.C. INDUCTION MOTOR MEANS FOR COOLING A MASS OF AIR, MEANS FOR HEATING THE MASS OF AIR, MEANS INCLUDING A SECOND ELECTRIC MOTOR FOR CIRCULATING THE MASS OF AIR FOR CONDITIONING PREDETERMINED ENVIRONMENTS, MEANS FOR SELECTIVELY CONDITIONING SAID A.C. INDUCTION MOTOR MEANS FOR ENERGIZATION FROM A POWER SOURCE, MEANS FOR SENSING AT LEAST TWO CONDITIONS IN THE ENVIRONMENT AND ADAPTED TO PRODUCE TWO SIGNALS IN PROPORTION RESPECTIVELY TO EACH OF SAID SENSED CONDITIONS, AND A COMPUTER CONTROL MEANS INCLUDING SEMICONDUCTOR SWITCH MEANS IN POWER SUPPLY RELATIONSHIP TO SAID A.C. INDUCTION MOTOR MEANS FOR SELECTIVELY VARYING THE POWER SUPPLY TO SAID A.C. INDUCTION MOTOR MEANS, SAID COMPUTER CONTROL MEANS INCLUDING MEANS FOR SIMULTANEOUSLY PROCESSING SAID SIGNALS TOGETHER TO CONTROL THE VOLTAGE CHARACTERISTIC OF POWER SUPPLIED THROUGH SAID SEMICONDUCTOR SWITCH MEANS TO SAID A.C. INDUCTION MOTOR MEANS WHEREBY THE SUPPLY OF HEAT AND THE COOLING OF THE MASS OF AIR IS REGULATED WITHIN PREDETERMINED LIMITS TO MAINTAIN A SUBSTANTIALLY UNIFORM COMFORT LEVEL IN THE ENVIRONMENT.
References Cited (Backward Citations)
US2429408A
Cited
US2608066A
Cited
US2744388A
Cited
US2918807A
Cited
US3181791A
Cited
US3203473A
Cited
US3131757A
Cited
US3171595A
Cited
US3166120A
Cited
US3182222A
Cited
US3170508A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |