Patent US3344377A successfully refreshed from Google Patents.
US3344377A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic actuator having plural plunger members
Assignee: Individual
•
Filing: 1965-09-09
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Granted: 1967-09-26
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Expires: 1985-09-09
Abstract
No abstract record available.
Inventors
- 👤 Warner W Clements
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:47
CPC Classifications
H; H02; H02K; H02K33/00; H02K33/02; H02K33/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
AN ELECTROMAGNETIC ACTUATOR COMPRISING A SOLENOID; TWO PLUNGER EXTENDER SEGMENTS MOUNTED FOR INDEPENDENT LONGITUDINAL MOTION ALONG THE AXIS OF THE SOLENOID IN AND OUT OF THE HOLE THROUGH SAID SOLENOID FROM RESPECTIVE ENDS THEREOF; MEANS FOR INDEPENDENTLY LIMITING RESPECTIVE OUTWARD TRAVEL OF THE PLUNGER EXTENDER SEGMENTS TO EXTREME POSITIONING WHEREIN EACH OF SAID SEGMENTS HAS ITS INNER END GENERALLY COMMUNICATING WITH A RESPECTIVE OUTER END OF THE SOLENOID; A CENTRAL PLUNGER SEGMENT MOUNTED BETWEEN THE PLUNGER EXTENDER SEGMENTS FOR LONGITUDINAL MOTION SUBSTANTIALLY WITHIN THE HOLE THROUGH THE SOLENOID;
Claim 2
Dependent Claim
88 words
AN ELECTROMAGNETIC ACTUATOR COMPRISING A SOLENOID; TWO PLUNGER EXTENDER SEGMENTS MOUNTED FOR INDEPENDENT LONGITUDINAL MOTION ALONG THE AXIS OF THE SOLENOID IN AND OUT OF THE HOLE THROUGH SAID SOLENOID FROM RESPECTIVE ENDS THEREOF; MEANS FOR INDEPENDENTLY LIMITING RESPECTIVE OUTWARD TRAVEL OF THE PLUNGER EXTENDER SEGMENTS TO EXTREME POSITIONING WHEREIN EACH OF SAID SEGMENTS HAS ITS INNER END GENERALLY COMMUNICATING WITH A RESPECTIVE OUTER END OF THE SOLENOID; A CENTRAL PLUNGER SEGMENT MOUNTED BETWEEN THE PLUNGER EXTENDER SEGMENTS FOR LONGITUDINAL MOTION SUBSTANTIALLY WITHIN THE HOLE THROUGH THE SOLENOID;
References Cited (Backward Citations)
US2515258A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-25 | 1971-03-27 | 1971-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-25 | 1975-03-27 | 1975-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-25 | 1979-03-27 | 1979-09-26 | $7700.00 | Window Closed / Lapsed |