US3347451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor compressor particularly for small refrigeration machines
Assignee: Danfoss AS
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Filing: 1965-10-26
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Granted: 1967-10-17
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Expires: 1985-10-26
Abstract
No abstract record available.
Inventors
- 👤 Holger V Vind
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:20
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/10; H02K7/118; F; F04; F04B; F04B49/00; F04B49/02; F25; F25B; F25B49/00; F25B49/02; F25B49/022
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A MOTOR-COMPRISING, A REFRIGERATION COMPRESSOR, AN ELECTRIC MOTOR HAVING AN AUXILIARY STARTING PHASE, COUPLING MEANS MECHANICALLY COUPLING SAID MOTOR AND SAID COMPRESSOR POSITIVELY FOR DRIVING SAID COMPRESSOR FROM SAID MOTOR, SAID COUPLING MEANS COMPRISING COUPLING DEVICES COOPERATIVE TO ALLOW SAID MOTOR TO ROTATE FREE OF THE MACHINE LOAD OF SAID COMPRESSOR DURING EACH INITIAL STARTING AND ACCELERATING PERIOD EACH CORRESPONDING TO AT LEAST ABOUT 300 ELECTRICAL DEGREES AND EFFECTIVE TO COOPERATIVELY POSITIVELY COUPLE SAID MOTOR AND SAID COMPRESSOR UPON COMPLETION OF EACH OF SAID INITIAL STARTING AND ACCELERATING PERIODS, AND SAID MOTOR HAVING THE CHARACTERISTIC OF BEING ABLE TO ACCELERATE TO A SPEED OF ROTATION IN SAID INITIAL STARTING AND ACCELERATING PERIOD EFFECTIVE TO ACHIEVE A MAJOR PORTION OF BREAKDOWN TORQUE.
Claim 2
Dependent Claim
121 words
A MOTOR-COMPRISING, A REFRIGERATION COMPRESSOR, AN ELECTRIC MOTOR HAVING AN AUXILIARY STARTING PHASE, COUPLING MEANS MECHANICALLY COUPLING SAID MOTOR AND SAID COMPRESSOR POSITIVELY FOR DRIVING SAID COMPRESSOR FROM SAID MOTOR, SAID COUPLING MEANS COMPRISING COUPLING DEVICES COOPERATIVE TO ALLOW SAID MOTOR TO ROTATE FREE OF THE MACHINE LOAD OF SAID COMPRESSOR DURING EACH INITIAL STARTING AND ACCELERATING PERIOD EACH CORRESPONDING TO AT LEAST ABOUT 300 ELECTRICAL DEGREES AND EFFECTIVE TO COOPERATIVELY POSITIVELY COUPLE SAID MOTOR AND SAID COMPRESSOR UPON COMPLETION OF EACH OF SAID INITIAL STARTING AND ACCELERATING PERIODS, AND SAID MOTOR HAVING THE CHARACTERISTIC OF BEING ABLE TO ACCELERATE TO A SPEED OF ROTATION IN SAID INITIAL STARTING AND ACCELERATING PERIOD EFFECTIVE TO ACHIEVE A MAJOR PORTION OF BREAKDOWN TORQUE.
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) | 1970-10-16 | 1971-04-17 | 1971-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-16 | 1975-04-17 | 1975-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-16 | 1979-04-17 | 1979-10-17 | $7700.00 | Window Closed / Lapsed |