US3351789A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double oscillator electric motor
Assignee: Energy Conversion Systems Corp
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Filing: 1964-10-12
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Granted: 1967-11-07
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Expires: 1984-10-12
Abstract
No abstract record available.
Inventors
- 👤 Ronald J Bertling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:01
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/06; H02K7/065; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1526
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
96 words
IN AN OSCILLATORY ELECTRIC MOTOR THE COMBINATION COMPRISING: AN OUTPUT SHAFT; A PAIR OF CLUTCHES ASSOCIATED WITH SAID SHAFT, EACH ADAPTED TO BE ADVANCED IN ONE DIRECTION IN WHICH SAID SHAFT IS MOVED WITH THE CLUTCH AND TO BE RETRACTED IN REVERSE DIRECTION IN WHICH THERE IS SLIPPAGE BETWEEN CLUTCH AND SHAFT; A PAIR OF OSCILLATORY MAGNETIC MEMBERS EACH CONNECTED WITH ONE OF SAID CLUTCHES AND EACH HAVING A CENTRAL MAGNETIC LEG, A PAIR OF SIDE MAGNETIC LEGS, AND A MAGNETIC YOKE JOINING THE LEGS WITH ONE ANOTHER; WINDINGS ENCIRCLING BOTH OF SAID CENTRAL LEGS; AND
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) | 1970-11-06 | 1971-05-08 | 1971-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-06 | 1975-05-08 | 1975-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-06 | 1979-05-08 | 1979-11-07 | $7700.00 | Window Closed / Lapsed |