Acceleration sensor with laterally-supported beam contacts

Details Acceleration sensor with laterally-supported beam contacts Acceleration sensor with laterally-supported beam contacts

1994-07-18

1995-11-28

Scott, J. R.

Electricity: circuit makers and breakers

Special application

Change of inclination or of rate of motion responsive

200 6145M, 200 6153, 200238, 200275, H01H 3514, H01H 100

Patent

active

054710219

ABSTRACT:
An improved acceleration sensor (10) includes a housing (12) having an internal passage (14) defined therein, a sensing mass (18) located within the passage which moves from a first position within the passage towards a second position therein in response to acceleration inputs to the sensor housing, and a pair of electrical contacts (22) projecting into the passage so as to be bridged by the sensing mass when it reaches its second position within the passage, thereby closing an electrical circuit. The supported end (28) of each of the contacts includes diametrical arms (32) which are themselves secured to the housing only at their outboard ends (36). The arms are thus free to rotate elastically when the sensing mass deflects the contact's cantilevered free end (30), thereby permitting greater elastic travel of the contact's free end, with its enhanced reliability and an attendant increase in contact dwell.

REFERENCES:
patent: 3272949 (1964-08-01), Lawrence
patent: 4221940 (1980-09-01), Roth
patent: 4922065 (1990-05-01), Behr et al.
patent: 4932260 (1990-06-01), Norton
patent: 5053588 (1991-10-01), Bolender
patent: 5149925 (1992-09-01), Behr et al.
patent: 5210384 (1993-05-01), Shimozono et al.
patent: 5374793 (1994-12-01), Shimozono et al.

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