Electrical switch construction and method of making the same

Details Electrical switch construction and method of making the same Electrical switch construction and method of making the same

1978-02-09

1979-07-03

Keenan, Michael J.

Metal working

Method of mechanical manufacture

Electrical device making

200 67E, H01H 1100

Patent

active

041595637

ABSTRACT:
A double throw electrical switch construction having a housing carrying a movable actuator unit for moving a snap switch blade of the housing over center to snap a contact portion of the blade between a pair of spaced contact stops carried by the housing with a contact force being sustained at the "trip point" of the switch construction by an actuator spring of the actuator unit being moved over center before the blade is moved over center by the snap movement of the actuator spring. The actuator unit includes an actuator plunger having lost motion means directly acting against the actuator spring whereby the actuator spring can move relative to the actuator plunger through the lost motion means thereof when the actuator plunger moves the actuator spring over center in either direction thereof.

REFERENCES:
patent: 2490320 (1949-12-01), Pashby
patent: 2821588 (1958-01-01), Fisher
patent: 3233055 (1966-02-01), Russell
patent: 3846600 (1974-11-01), Kolze et al.
patent: 3989914 (1976-11-01), Stearley et al.
patent: 4010337 (1977-03-01), Thompson et al.

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