Miniature omnidirectional instantly responsive impact switch

Details Miniature omnidirectional instantly responsive impact switch Miniature omnidirectional instantly responsive impact switch

1989-06-08

1990-04-10

Scott, J. R.

Electricity: circuit makers and breakers

Special application

Change of inclination or of rate of motion responsive

200 6151, H01H 3514

Patent

active

049162667

ABSTRACT:
This miniature omnidirectional impact switch has a generally cylindrical electrically conductive mass held by coil spring bias in abutment with a conductive header wall at one end of a cylindrical housing. The mass has a blind bore in one end. The mass is held axially tilted by contact between a free end of a wire conductor and an end wall of the bore. A closed circuit is defined between a second conductor contacting the header wall and the first conductor, via the mass and header wall. The switch is responsive to an impact applied to the other end of the housing or to a side thereof within 200 microseconds after impact to open the closed circuit by separating the mass from the header wall and the end of the first conductor against the spring bias. A movement of the mass of 0.001 of an inch is sufficient to open the closed circuit.

REFERENCES:
patent: 3527906 (1970-09-01), Schwab
patent: 3527907 (1970-09-01), Schwab
patent: 3649787 (1972-03-01), Kasabian
patent: 3657500 (1972-04-01), Gawlick
patent: 3706867 (1972-12-01), Rand et al.
patent: 3899649 (1975-08-01), Jenkins
patent: 4746774 (1988-05-01), Tetrault et al.
patent: 4789762 (1988-12-01), Miller et al.

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