US3253773A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerating apparatus
Assignee: Motors Liquidation Co
•
Filing: 1964-12-28
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Granted: 1966-05-31
•
Expires: 1984-12-28
Abstract
No abstract record available.
Inventors
- 👤 Laura H Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:20
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/00421; B60H1/0045
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
IN AN AUTOMOTIVE VEHICLE, AN INTERNAL COMBUSTION ENGINE, AN AIR CONDITIONING SYSTEM INCLUDING A REFRIGERANT COMPRESSOR, SAID COMPRESSOR HAVING A MAGNETIC CLUTCH INCLUDING A COIL WHICH UPON ENERGIZATION CREATES A MAGNETIC FIELD CAUSING SAID CLUTCH TO DRIVINGLY COUPLE SAID COMPRESSOR TO SAID ENGINE, AND AN IDLE SPACED CONTROL FOR SAID ENGINE COMPRISING PERMANENT MAGNET MEANS ENERGIZED BY THE MAGNETIC FIELD CREATED BY SAID COIL AND ADAPTED UPON ENERGIZATION TO INCREASE THE ENGINE IDLE SPEED.
Claim 2
Dependent Claim
74 words
IN AN AUTOMOTIVE VEHICLE, AN INTERNAL COMBUSTION ENGINE, AN AIR CONDITIONING SYSTEM INCLUDING A REFRIGERANT COMPRESSOR, SAID COMPRESSOR HAVING A MAGNETIC CLUTCH INCLUDING A COIL WHICH UPON ENERGIZATION CREATES A MAGNETIC FIELD CAUSING SAID CLUTCH TO DRIVINGLY COUPLE SAID COMPRESSOR TO SAID ENGINE, AND AN IDLE SPACED CONTROL FOR SAID ENGINE COMPRISING PERMANENT MAGNET MEANS ENERGIZED BY THE MAGNETIC FIELD CREATED BY SAID COIL AND ADAPTED UPON ENERGIZATION TO INCREASE THE ENGINE IDLE SPEED.
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) | 1969-05-30 | 1969-11-29 | 1970-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-30 | 1973-11-29 | 1974-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-30 | 1977-11-29 | 1978-05-31 | $7700.00 | Window Closed / Lapsed |