US3308314A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resilient no-back device for small synchronous motors
Assignee: GENERAL TIME CONTROLS Inc 135 SOUTH MAIN ST THOMASTON CT 06787 A CORP OF DE
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Filing: 1964-02-10
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Granted: 1967-03-07
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Expires: 1984-02-10
Abstract
No abstract record available.
Inventors
- 👤 Jr Nelson C Spring
- 👤 Christian M J Jauch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:17
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/10; H02K7/118; H02K7/1185
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
IN A SYNCHRONOUS MOTOR THE COMBINATION OF: ALTERNATE FIELD POLES, A ROTATABLE PERMANENT MAGNET ROTOR CAPABLE OF STARTING AND RUNNING IN A FIRST OR A SECOND DIRECTION ON EFFECTING ALTERNATING OPPOSITE POLARITIES IN SAID ALTERNATE FIELD POLES, A RESILIENT MEMBER ROTATABLE WITH SAID ROTOR, AN ELEMENT PIVOTALLY ARRANGED ADJACENT SAID RESILIENT MEMBER, AND MEANS ON SAID PIVOTAL ELEMENT FOR ARRESTINGLY ENGAGING AND COMPRESSING SAID RESILIENT MEMBER WHEN SAID ROTOR ROTATES IN SAID FIRST DIRECTION WHEREUPON SAID ROTOR IS IMPELLED IN SAID SECOND DIRECTION.
Claim 2
Dependent Claim
83 words
IN A SYNCHRONOUS MOTOR THE COMBINATION OF: ALTERNATE FIELD POLES, A ROTATABLE PERMANENT MAGNET ROTOR CAPABLE OF STARTING AND RUNNING IN A FIRST OR A SECOND DIRECTION ON EFFECTING ALTERNATING OPPOSITE POLARITIES IN SAID ALTERNATE FIELD POLES, A RESILIENT MEMBER ROTATABLE WITH SAID ROTOR, AN ELEMENT PIVOTALLY ARRANGED ADJACENT SAID RESILIENT MEMBER, AND MEANS ON SAID PIVOTAL ELEMENT FOR ARRESTINGLY ENGAGING AND COMPRESSING SAID RESILIENT MEMBER WHEN SAID ROTOR ROTATES IN SAID FIRST DIRECTION WHEREUPON SAID ROTOR IS IMPELLED IN SAID SECOND DIRECTION.
References Cited (Backward Citations)
US2766863A
Cited
US3027469A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |