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US3110792A Expired / Lapsed US ⏱️ 0.0 years remaining

Lock-open contact latch

Assignee: General Electric Co
•
Filing: 1961-03-03
•
Granted: 1963-11-12
•
Expires: 1981-03-03
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Abstract

No abstract record available.

Inventors

  • 👤 George E Gauthier

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 00:06
CPC Classifications
H; H01; H01H; H01H71/00; H01H71/10; H01H71/50; H01H71/504

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 186 words
SWITCHING APPARATUS COMPRISING A HOUSING OF SUBSTANTIALLY RIGID INSULATING MATERIAL, AT LEAST ONE CONTACT ARM PIVOTALLY SUPPORTED IN SAID HOUSING, A MOVABLE CONTACT CARRIED BY SAID CONTACT ARM, A STATIONARY CONTACT MOUNTED IN SAID HOUSING, SAID MOVABLE CONTACT BEING MOVABLE ALONG A PREDETERMINED PATH OF MOVEMENT BETWEEN ENGAGED AND DISENGAGED POSITIONS WITH RESPECT TO SAID STATIONARY CONTACT, A LATCH MEMBER PIVOTALLY MOUNTED IN SAID HOUSING ADJACENT SAID PATH OF MOVEMENT OF SAID CONTACT ARM, MEANS BIASING SAID LATCH MEMBER INTO ENGAGEMENT WITH A PORTION OF SAID HOUSING, SAID LATCH MEMBER INCLUDING A LATCH PORTION MOVABLE UPON ROTATION OF SAID LATCH MEMBER INTO THE PATH OF MOVEMENT OF SAID CONTACT ARM TO DIRECTLY ENGAGE SAID CONTACT ARM TO LIMIT MOVEMENT THEREOF, SAID LATCH MEMBER HAVING MOST OF ITS MASS AT THE SAME SIDE OF SAID PIVOTAL SUPPORT AS THE ENGAGEMENT WITH SAID HOUSING WHEREBY SHOCK FORCES EXERTED ON SAID HOUSING CAUSE SAID LATCH MEMBER TO MOVE AWAY FROM ITS ENGAGEMENT WITH SAID HOUSING AND INTO THE PATH OF MOVEMENT OF SAID CONTACT ARM, BEFORE SAID MOVABLE CONTACT ARM HAS MOVED AN APPRECIABLE DISTANCE FROM SAID OPEN-CIRCUIT POSITION.
Claim 2
Dependent Claim 186 words
SWITCHING APPARATUS COMPRISING A HOUSING OF SUBSTANTIALLY RIGID INSULATING MATERIAL, AT LEAST ONE CONTACT ARM PIVOTALLY SUPPORTED IN SAID HOUSING, A MOVABLE CONTACT CARRIED BY SAID CONTACT ARM, A STATIONARY CONTACT MOUNTED IN SAID HOUSING, SAID MOVABLE CONTACT BEING MOVABLE ALONG A PREDETERMINED PATH OF MOVEMENT BETWEEN ENGAGED AND DISENGAGED POSITIONS WITH RESPECT TO SAID STATIONARY CONTACT, A LATCH MEMBER PIVOTALLY MOUNTED IN SAID HOUSING ADJACENT SAID PATH OF MOVEMENT OF SAID CONTACT ARM, MEANS BIASING SAID LATCH MEMBER INTO ENGAGEMENT WITH A PORTION OF SAID HOUSING, SAID LATCH MEMBER INCLUDING A LATCH PORTION MOVABLE UPON ROTATION OF SAID LATCH MEMBER INTO THE PATH OF MOVEMENT OF SAID CONTACT ARM TO DIRECTLY ENGAGE SAID CONTACT ARM TO LIMIT MOVEMENT THEREOF, SAID LATCH MEMBER HAVING MOST OF ITS MASS AT THE SAME SIDE OF SAID PIVOTAL SUPPORT AS THE ENGAGEMENT WITH SAID HOUSING WHEREBY SHOCK FORCES EXERTED ON SAID HOUSING CAUSE SAID LATCH MEMBER TO MOVE AWAY FROM ITS ENGAGEMENT WITH SAID HOUSING AND INTO THE PATH OF MOVEMENT OF SAID CONTACT ARM, BEFORE SAID MOVABLE CONTACT ARM HAS MOVED AN APPRECIABLE DISTANCE FROM SAID OPEN-CIRCUIT POSITION.

References Cited (Backward Citations)

US2409115A Cited
US2534906A Cited
US2438373A Cited
US2653202A Cited
US2932706A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1966-11-11 1967-05-13 1967-11-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1970-11-11 1971-05-13 1971-11-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1974-11-11 1975-05-13 1975-11-12 $7700.00 Window Closed / Lapsed

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