Switch for timer

Details Switch for timer Switch for timer

1978-01-05

1979-08-28

Ross, Herbert F.

Electricity: circuit makers and breakers

Special application

Liquid or moisture responsive

H01H 2104

Patent

active

041662040

ABSTRACT:
The switch for timer is comprised of a single pole, double throw switch. The switch includes a plurality of contact arms, the two outer arms being substantially fixed in disposition while a center arm is capable of movement therebetween to positions of contact. A slot extends in substantially a longitudinal direction from one end of the center arm. The slot provides a demarcation between the contact carrying portion of the center arm and a portion adapted to be connected with an actuator through a spring. Movement of the actuator imparts movement to the center arm by snap action from one stable position of contact to another. However, up to the instant of a break as the actuator passes through an over center position the slot permits the contact carrying portion to maintain good contact pressure against the contact at one of the positions.

REFERENCES:
patent: 2734959 (1956-02-01), Immel
patent: 2788409 (1957-04-01), Grover
patent: 2839624 (1958-06-01), Stolle
patent: 3548131 (1970-12-01), Piber

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