Self-adjusting electric switch and gas cylinder

Details Self-adjusting electric switch and gas cylinder Self-adjusting electric switch and gas cylinder

1990-09-17

1991-08-27

Scott, J. R.

Electricity: circuit makers and breakers

Special application

Actuated concurrently with operation or use of art device

200 52R, 200 82D, H01H 316

Patent

active

050435426

ABSTRACT:
A condition settable combination gas cylinder and electric switch, the switch being mounted on the extended piston rod of the cylinder. The switch has an internal retainer within the switch housing and engageable by the cylinder housing in the first compression stroke of the cylinder, to shift the retainer and two electrical contacts thereon to a set position exactly suiting the cumulative buildout tolerance of the vehicle or other machine on which the novel combination is mounted. The retainer is locked there against reverse movement when the cylinder again extends and thereby withdraws from the switch. Another electrical contact is located on a switch plunger that moves axially back and forth with the retainer and switch housing. Thus, each repeat extension by the cylinder causes interengagement of the three electrical contacts.

REFERENCES:
patent: Re30663 (1981-06-01), Schnitzius
patent: 3919509 (1975-11-01), Schnitzius
patent: 4263488 (1981-04-01), Freitag et al.
patent: 4281884 (1981-08-01), Freitag et al.
patent: 4298194 (1981-11-01), Marx
patent: 4316098 (1982-02-01), Freitag et al.
patent: 4317014 (1982-02-01), Langanke
patent: 4400600 (1983-08-01), Freitag et al.
patent: 4667940 (1987-05-01), Jaillet

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