Locking member for hand-held trigger actuated switch

Details Locking member for hand-held trigger actuated switch Locking member for hand-held trigger actuated switch

1975-09-02

1977-05-10

Schaefer, Robert K.

Electricity: circuit makers and breakers

Liquid contact

Time delay

74527, 200321, H01H 906

Patent

active

040230015

ABSTRACT:
A portable electric tool has an ON-OFF trigger operated switch and a locking member to hold the trigger with the switch in ON position. The trigger has one end pivoted in the handle of the tool. A portion of the trigger extends outwardly from an opening in the handle so that it can be manually moved inwardly to ON position by the operator while holding the tool by its handle. Such inward movement is resiliently resisted and the ON position is momentary so that when the operator releases actuating pressure, the trigger automatically moves to switch OFF position.

REFERENCES:
patent: 2200322 (1940-05-01), Arnesen
patent: 2237646 (1941-04-01), Wilhide
patent: 2450380 (1948-09-01), Perham

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