Patent US3307131A successfully refreshed from Google Patents.
US3307131A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic actuator with detent means
Assignee: Motors Liquidation Co
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Filing: 1965-05-06
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Granted: 1967-02-28
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Expires: 1985-05-06
Abstract
No abstract record available.
Inventors
- 👤 Gerald E Hook
- 👤 Albert J Sobey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:24
CPC Classifications
H; H01; H01F; H01F7/00; H01F7/06; H01F7/08; H01F7/16; H01F7/1607
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
142 words
AN ELECTROMAGNETIC ACTUATOR COMPRISING: A FIXED CHAMBER OPEN AT ONE END, SAID CHAMBER INCLUDING A SOLENOID, ACTUATOR MEANS RECIPROCABLY MOUNTED IN SAID CHAMBER AND TRANSLATABLE BETWEEN A FIRST AND A SECOND POSITION, AN ABUTMENT SURFACE ON SAID ACTUATOR MEANS, SPRING MEANS DISPOSED BETWEEN SAID CHAMBER AND SAID ACTUATOR MEANS RESILIENTLY URGING SAID ACTUATOR MEANS TO SAID FIRST POSITION, DETENT MEANS ON SAID ACTUATOR MEANS, SAID DETENT MEANS BEING EXTENDABLE OUT OF SAID ABUTMENT SURFACE AND ENGAGEABLE WITH SAID CHAMBER TO LOCK SAID ACTUATOR MEANS IN SAID FIRST POSITION, AN ARMATURE RECIPROCABLY MOUNTED ON SAID ACTUATOR MEANS AND ENGAGEABLE WITH SAID ABUTMENT SURFACE TO TRANSLATE SAID ACTUATOR MEANS IN AN OPPOSITE DIRECTION TO SAID SECOND POSITION, AND CAM MEANS ON SAID ARMATURE EXTENDING TOWARD SAID ABUTMENT SURFACE OF THE ACTUATOR MEANS ADAPTED TO ENGAGE SAID DETENT MEANS AND CAM IT OUT OF LOCKING
References Cited (Backward Citations)
US3201545A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |