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USRE28251E Expired / Lapsed US ⏱️ 0.0 years remaining

Crash sensing switch

Assignee: —
•
Filing: 1973-09-27
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Granted: 1974-11-26
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Expires: 1993-09-27
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Abstract

Abstract 1. A CRASH SWITCH COMPRISING A HOUSING HAVING AN INTERIOR CHAMBER, THE CHAMBER HAVING FIRST AND SECOND PARALLEL GUIDE SURFACES, SAID SECOND SURFACE TERMINATING AT ONE END AT AN INTERMEDIATE POINT WITHIN THE CHAMBER, A PAIR OF CYLINDRICAL ROLLERS, THE DIAMETERS OF THE ROLLERS BEING LESS THAN THE NORMAL DISTANCE BETWEEN THE FIRST AND SECOND SURFACES BUT GREATER THAN HALF SAID NORMAL DISTANCE, A FLEXIBLE SPRING BAND ANCHORED AT ONE END OF THE HOUSING ADJACENT ONE END OF THE FIRST SURFACE, THE BAND PASSING AROUND A PORTION OF EACH OF THE ROLLERS IN A SUBSTANTIALLY S-SHAPED PATH BETWEEN THE TWO SURFACES, THE OTHER END OF THE BAND EXTENDING BEYOND SAID ONE END OF THE SECOND SURFACE SUCH THAT MOVEMENT OF THE ROLLERS ALONG THE BAND EXTENDS FROM BETWEEN THE TWO PARALLEL SURFACES TO A POSITION BEYOND SAID ONE END OF THE SECOND SURFACE, SPRING MEANS CONNECTED BETWEEN SAID OTHER END OF THE BAND AND THE HOUSING FOR IMPARTING TENSION TO THE BANK, AND A RE-SET PLUNGER EXTENDING INTO THE CHAMBER ADJACENT SAID ONE END OF THE SECOND SURFACE, THE PLUNGER HAVING A PORTION MOVABLE TOWARD AND INTO ENGAGEMENT WITH THE BAND FOR URGING THE BAND IN A DIRECTION TOWARD THE FIRST SURFACE WHEN THE POSITION OF THE ROLLERS IS BEYOND SAID ONE END OF THE SECOND SURFACE.

Inventors

No inventors recorded.

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 06:41
CPC Classifications
G; G01; G01P; G01P15/00; G01P15/02; G01P15/08; G01P15/135; H; H01; H01H; H01H35/00; H01H35/14; H01H35/148

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-11-25 1978-05-27 1978-11-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-11-25 1982-05-27 1982-11-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-11-25 1986-05-27 1986-11-26 $7700.00 Window Closed / Lapsed

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