Patent US3291383A successfully refreshed from Google Patents.
US3291383A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerating apparatus
Assignee: Motors Liquidation Co
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Filing: 1965-01-26
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Granted: 1966-12-13
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Expires: 1985-01-26
Abstract
No abstract record available.
Inventors
- 👤 Mervin R Butts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:46
CPC Classifications
F; F25; F25B; F25B31/00; F25B31/02; F25B31/026; Y; Y10; Y10S; Y10S417/00; Y10S417/902
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
IN A REFRIGERANT APPARATUS, THE COMBINATION OF, REFRIGERANT COMPRESSOR MEANS INCLUDING A PISTON, ELECTRIC MOTOR MEANS INCLUDING A STATOR AND A ROTOR, FIRST DRIVE CONNECTION MEANS INCLUDING MEANS FIXEDLY CONNECTED TO SAID ROTOR, SECOND DRIVE CONNECTION MEANS INCLUDING MEANS FIXEDLY CONNECTED TO SAID COMPRESSOR PISTON, SAID FIRST AND SECOND DRIVE CONNECTION MEANS INCLUDING MEANS FOR FORMING A FLUID CHAMBER, FLUID COUPLING MEANS WITHIN SAID FLUID CHAMBER FOR OPERATIVELY CONNECTING SAID DRIVE ROTOR TO SAID COMPRESSOR PISTON WHEN SAID DRIVE ROTOR ATTAINS A PREDETERMINED SPEED, A SHELL ENCLOSING SAID COMPRESSOR AND ELECTRIC MOTOR AND INCLUDING A LUBRICANT CONTAINING SUMP
Claim 2
Dependent Claim
98 words
IN A REFRIGERANT APPARATUS, THE COMBINATION OF, REFRIGERANT COMPRESSOR MEANS INCLUDING A PISTON, ELECTRIC MOTOR MEANS INCLUDING A STATOR AND A ROTOR, FIRST DRIVE CONNECTION MEANS INCLUDING MEANS FIXEDLY CONNECTED TO SAID ROTOR, SECOND DRIVE CONNECTION MEANS INCLUDING MEANS FIXEDLY CONNECTED TO SAID COMPRESSOR PISTON, SAID FIRST AND SECOND DRIVE CONNECTION MEANS INCLUDING MEANS FOR FORMING A FLUID CHAMBER, FLUID COUPLING MEANS WITHIN SAID FLUID CHAMBER FOR OPERATIVELY CONNECTING SAID DRIVE ROTOR TO SAID COMPRESSOR PISTON WHEN SAID DRIVE ROTOR ATTAINS A PREDETERMINED SPEED, A SHELL ENCLOSING SAID COMPRESSOR AND ELECTRIC MOTOR AND INCLUDING A LUBRICANT CONTAINING SUMP
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) | 1969-12-12 | 1970-06-13 | 1970-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-12 | 1974-06-13 | 1974-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-12 | 1978-06-13 | 1978-12-13 | $7700.00 | Window Closed / Lapsed |