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US3588401A Expired / Lapsed US ⏱️ 0.0 years remaining

Inverted pendulum oscillating controller impact switch with decreasing returning forces acting upon the pendulum as it pivots from its normal position

Assignee: Eaton Corp
•
Filing: 1969-08-14
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Granted: 1971-06-28
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Expires: 1989-08-14
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Abstract

Abstract A SWITCH MECHANISM IN WHICH A BIASING SPRING IS CONNECTED TO A MOVABLE MEMBER WHOSE INERTIA ACTUATES THE SWITCH THROUGH A CONNECTION WHOSE MECHANISM ADVANTAGE DECREASES AS THE MOVABLE MEMBER MOVES RELATIVE TO ITS SUPPORT TOWARD A SWITCH OPERATED POSITION AND IN WHICH THE TOTAL FORCES OPPOSING MOVEMENT TO THE SWITCH OPERATING POSITION DECREASE AS THE MOVABLE MEMBER APPROACHES A POSITION IN WHICH THE SWITCH IS OPERATED. THIS DECREASING MECHANICAL ADVANTAGE IS A RESULT OF CONNECTING A NONEXTENSIBLE MEANS TO THE MOVABLE MEMBER AT A POINT SPACED FROM THE PLANAR SURFACE AND OUTWARDLY OF THE CENTER OF GRAVITY OF THE MOVABLE MEMBER. THE MOVABLE MEMBER MAY MOVE IN A PLURALITY OF DIRECTIONS.

Inventors

  • 👤 Charles O Berryman

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 09:56
CPC Classifications
H; H01; H01H; H01H35/00; H01H35/14

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-06-27 1974-12-27 1975-06-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-06-27 1978-12-27 1979-06-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-06-27 1982-12-27 1983-06-28 $7700.00 Window Closed / Lapsed

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