Patent US3261172A successfully refreshed from Google Patents.
US3261172A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coolant system for hermetically sealed motor
Assignee: Copeland Industrial LP
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Filing: 1963-11-12
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Granted: 1966-07-19
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Expires: 1983-11-12
Abstract
No abstract record available.
Inventors
- 👤 Whitney I Grant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:47
CPC Classifications
F; F25; F25B; F25B31/00; F25B31/006
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
A COOLING SYSTEM FOR A HERMETICALLY SEALED MOTOR IN A REFRIGERATING SYSTEM HAVING A COMPRESSOR DRIVEN BY SAID MOTOR, A CONDENSER, FIRST CONDUIT MEANS CONNECTING SAID CONDENSER WITH AN EVAPORATOR, SECOND CONDUIT MEANS CONNECTING SAID EVAPORATOR WITH THE SUCTION SIDE OF SAID COMPRESSOR, MEANS LOCATED INTERIORLY OF SAID MOTOR WINDING DIRECT HEAT EXCHANGE RELATION WITH THE MOTOR WINDING FOR SENSING MOTOR TEMPERATURE, THIRD CONDUIT MEANS CONNECTING SAID FIRST CONDUIT MEANS WITH SAID MOTOR FOR
Claim 2
Dependent Claim
74 words
A COOLING SYSTEM FOR A HERMETICALLY SEALED MOTOR IN A REFRIGERATING SYSTEM HAVING A COMPRESSOR DRIVEN BY SAID MOTOR, A CONDENSER, FIRST CONDUIT MEANS CONNECTING SAID CONDENSER WITH AN EVAPORATOR, SECOND CONDUIT MEANS CONNECTING SAID EVAPORATOR WITH THE SUCTION SIDE OF SAID COMPRESSOR, MEANS LOCATED INTERIORLY OF SAID MOTOR WINDING DIRECT HEAT EXCHANGE RELATION WITH THE MOTOR WINDING FOR SENSING MOTOR TEMPERATURE, THIRD CONDUIT MEANS CONNECTING SAID FIRST CONDUIT MEANS WITH SAID MOTOR FOR
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) | 1969-07-18 | 1970-01-17 | 1970-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-18 | 1974-01-17 | 1974-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-18 | 1978-01-17 | 1978-07-19 | $7700.00 | Window Closed / Lapsed |