US3366167A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Condensing units for refrigeration systems
Assignee: Carrier Corp
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Filing: 1966-08-01
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Granted: 1968-01-30
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Expires: 1986-08-01
Abstract
No abstract record available.
Inventors
- 👤 Gerald L Dapper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:08
CPC Classifications
F; F25; F25B; F25B49/00; F25B49/02; F25B49/027; F25B2700/00; F25B2700/19; F25B2700/195
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
174 words
A CONDENSING UNIT FOR USE IN A REFRIGERATION SYSTEM COMPRISING: (1) A CASING HAVING A PLURALITY OF APERTURES FORMED THEREIN FOR ADMITTING AND EXHAUSTING AIR FROM SAID HOUSING; (2) A HEAT EXCHANGER DISPOSED IN ONE OF SAID APERTURES IN SAID HOUSING, SAID HEAT EXCHANGER BEING ADAPTED TO CONDENSATE REFRIGERANT VAPOR THEREIN; (3) A FIRST FAN DRIVEN BY A FIRST ELECTRIC FAN MOTOR DISPOSED IN ANOTHER OF SAID APERTURES IN SAID HOUSING FOR PASSING AIR OVER SAID HEAT EXCHANGER; (4) A SECOND FAN DRIVEN BY A SECOND ELECTRIC FAN MOTOR DISPOSED IN ANOTHER OF SAID APERTURES IN SAID HOUSING FOR PASSING ADDITIONAL AIR OVER SAID HEAT EXCHANGER; (5) CIRCUIT MEANS FOR ENERGIZING SAID FIRST AND SAID SECOND FAN MOTORS INCLUDING CIRCUIT MEANS FOR SELECTIVELY ENERGIZING AND DE-ENERGIZING ONE OF SAID FAN MOTORS INDEPENDENTLY OF THE OTHER FAN MOTOR UPON THE OCCURRENCE OF A PREDETERMINED CONDITION; AND (6) BRAKE MEANS TO PREVENT REVERSE ROTATION OF SAID ONE FAN MOTOR WHEN IN A DE-ENERGIZED CONDITION AT TIMES WHEN SAID OTHER FAN MOTOR IS IN AN ENERGIZED CONDITION.
Claim 2
Dependent Claim
174 words
A CONDENSING UNIT FOR USE IN A REFRIGERATION SYSTEM COMPRISING: (1) A CASING HAVING A PLURALITY OF APERTURES FORMED THEREIN FOR ADMITTING AND EXHAUSTING AIR FROM SAID HOUSING; (2) A HEAT EXCHANGER DISPOSED IN ONE OF SAID APERTURES IN SAID HOUSING, SAID HEAT EXCHANGER BEING ADAPTED TO CONDENSATE REFRIGERANT VAPOR THEREIN; (3) A FIRST FAN DRIVEN BY A FIRST ELECTRIC FAN MOTOR DISPOSED IN ANOTHER OF SAID APERTURES IN SAID HOUSING FOR PASSING AIR OVER SAID HEAT EXCHANGER; (4) A SECOND FAN DRIVEN BY A SECOND ELECTRIC FAN MOTOR DISPOSED IN ANOTHER OF SAID APERTURES IN SAID HOUSING FOR PASSING ADDITIONAL AIR OVER SAID HEAT EXCHANGER; (5) CIRCUIT MEANS FOR ENERGIZING SAID FIRST AND SAID SECOND FAN MOTORS INCLUDING CIRCUIT MEANS FOR SELECTIVELY ENERGIZING AND DE-ENERGIZING ONE OF SAID FAN MOTORS INDEPENDENTLY OF THE OTHER FAN MOTOR UPON THE OCCURRENCE OF A PREDETERMINED CONDITION; AND (6) BRAKE MEANS TO PREVENT REVERSE ROTATION OF SAID ONE FAN MOTOR WHEN IN A DE-ENERGIZED CONDITION AT TIMES WHEN SAID OTHER FAN MOTOR IS IN AN ENERGIZED CONDITION.
References Cited (Backward Citations)
US3112620A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-29 | 1971-07-31 | 1972-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-29 | 1975-07-31 | 1976-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-29 | 1979-07-31 | 1980-01-30 | $7700.00 | Window Closed / Lapsed |