Electricity: circuit makers and breakers – Cam operates contact or microswitch
Patent
1992-12-24
1994-06-28
Barrett, Glenn J.
Electricity: circuit makers and breakers
Cam operates contact or microswitch
200 6B, 200 6BA, 200551, H01H 342
Patent
active
053249038
ABSTRACT:
An arm switch assembly, for an electrical instrument having a casing and electrical contacts, comprises an elongated insulating body member with a conductive member moved into engagement with and disengagement from the electrical contacts in response to operation of a camming mechanism. The camming mechanism is slidably mounted to the casing and has a cam surface movable between first and second positions. The insulating body member includes first and second ends, and a lateral arm connected to the first end permits the insulating body member to pivot relative to the casing. A cam follower is connected to and extends laterally from the second end of the insulating body member. The cam follower engages the cam surface in the first position and disengages the cam surface in the second position. The conductive member is mounted on the second end of the insulating body member and is positioned adjacent to the electrical contacts. The conductive member engages the electrical contacts in response to movement of the cam surface to the second position and disengages the electrical contacts in response to movement of the cam surface to the first position. A compressive element mounted to the insulating body member biases the conductive member generally toward the electrical contacts.
REFERENCES:
patent: 3015002 (1961-12-01), Laviana
patent: 4063204 (1977-12-01), McFarlin
patent: 4418257 (1983-11-01), Muller et al.
patent: 4540859 (1985-09-01), Lemmer
patent: 4659879 (1987-04-01), Hasegawa
patent: 4983788 (1991-01-01), Pardini
patent: 5047603 (1991-09-01), Pardini
Barrett Glenn J.
Coe R. N.
Miles Inc.
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