Patent US3354731A successfully refreshed from Google Patents.
US3354731A
Expired / Lapsed
US
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Plunger actuated switch
Assignee: KELEK CO
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Filing: 1966-02-25
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Granted: 1967-11-28
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Expires: 1986-02-25
Abstract
No abstract record available.
Inventors
- 👤 Edwin E Kussmaul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:46
CPC Classifications
H; H01; H01H; H01H15/00; H01H15/02; H01H15/06; H01H15/10; H01H15/102; H01H15/105; H01H19/00; H01H19/54; H01H19/60; H01H19/62; H01H19/623; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18296
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
A PLUNGER ACTUATED SWITCH MECHANISM HAVING, IN COMBINATION, A SHELL DEFINING AN ENCLOSURE AND HAVING A PAIR OF ALIGNED OPENINGS DEFINING BEARINGS IN THE WALL THEREOF, A SWITCH MOUNTED IN SAID ENCLOSURE AND HAVING A PROJECTING OPERATOR ELEMENT DISPLACEABLE NORMALLY TO THE BEARINGS, A THREADED SCREW SLIDABLE IN ONE OF SAID BEARINGS AND HAVING A HEAD EXTERIOR TO AN ENGAGEABLE WITH THE SHELL, A PLUNGER SLIDABLE IN AND EXTENDING FROM THE OTHER OF SAID BEARINGS AND THREADED UPON THE SCREW, A BLOCK THREADED UPON THE SCREW BETWEEN THE HEAD AND THE PLUNGER AND ADAPTED UPON SLIDING OF THE SCREW AND PLUNGER TO ENGAGE THE OPERATOR ELEMENT, AND A SPRING URGING THE BLOCK TOWARD SAID OTHER BEARING AND THEREBY URGING THE HEAD TOWARD ENGAGEMENT WITH THE SHELL.
Claim 2
Dependent Claim
126 words
A PLUNGER ACTUATED SWITCH MECHANISM HAVING, IN COMBINATION, A SHELL DEFINING AN ENCLOSURE AND HAVING A PAIR OF ALIGNED OPENINGS DEFINING BEARINGS IN THE WALL THEREOF, A SWITCH MOUNTED IN SAID ENCLOSURE AND HAVING A PROJECTING OPERATOR ELEMENT DISPLACEABLE NORMALLY TO THE BEARINGS, A THREADED SCREW SLIDABLE IN ONE OF SAID BEARINGS AND HAVING A HEAD EXTERIOR TO AN ENGAGEABLE WITH THE SHELL, A PLUNGER SLIDABLE IN AND EXTENDING FROM THE OTHER OF SAID BEARINGS AND THREADED UPON THE SCREW, A BLOCK THREADED UPON THE SCREW BETWEEN THE HEAD AND THE PLUNGER AND ADAPTED UPON SLIDING OF THE SCREW AND PLUNGER TO ENGAGE THE OPERATOR ELEMENT, AND A SPRING URGING THE BLOCK TOWARD SAID OTHER BEARING AND THEREBY URGING THE HEAD TOWARD ENGAGEMENT WITH THE SHELL.
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) | 1970-11-27 | 1971-05-29 | 1971-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-27 | 1975-05-29 | 1975-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-27 | 1979-05-29 | 1979-11-28 | $7700.00 | Window Closed / Lapsed |