Electricity: circuit makers and breakers – Electric switch details – Contact
Patent
1979-03-13
1979-12-18
Tudor, Harold J.
Electricity: circuit makers and breakers
Electric switch details
Contact
200153LB, 200250, 200325, H01H 900
Patent
active
041795938
ABSTRACT:
A change-over switch for a printed circuit board comprises an electrically conductive, resilient wire which is disposed in the manner of a torsion spring, on an electrically conductive support stud which in turn, is secured on an insulating substrate so as to be in electrical contact with a patterned electrical circuit printed thereon. The wire has a pair of limbs which are formed as movable electrical contacts and which are biased by the resilience of the wire material to move in opposite directions along a path on which are disposed a pair of stationary contacts in the form of studs secured to the substrate in electrical contact with other portions of the patterned electrical circuit. An operating member either constrains or permits a movement of the resilient wire under its bias, thus operating the movable contacts into and out of engagement with the stationary contacts.
REFERENCES:
patent: 3595092 (1971-07-01), Mayer et al.
patent: 3622934 (1971-11-01), Yano
patent: 3746803 (1973-07-01), Cryer
patent: 3946185 (1976-03-01), Gruner
patent: 3965319 (1976-06-01), Lockard
Olympus Optical Company Ltd.
Tudor Harold J.
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