Electricity: circuit makers and breakers – Electric switch details – Actuators
Patent
1978-08-15
1980-04-29
Pollard, Steven M.
Electricity: circuit makers and breakers
Electric switch details
Actuators
200303, H01H 312, H01H 1300
Patent
active
042007810
ABSTRACT:
A manual switch for portable electric tools having minimum parts and ease of assembly. The switch is of the trigger actuated type and includes a single-piece molded housing, single-piece stationary contact-terminals, single-piece movable contact-terminals, and a snap-in assembled trigger. The double-pole stationary and movable contact-terminals are placed in slots in the single-piece molded housing member, this molded member is folded to form a switch housing, the return spring is inserted into the groove in the trigger, the cam end of the trigger along with the spring is inserted into the housing, the housing is closed by the rivet, and the trigger is snap-in assembled fully into its hole in the housing to complete assembly of the switch. The switch is connected to a tool motor circuit by pressing electrical conductors into holes in the bottom of the housing. These connections can be released by inserting a release tool alongside the lead, or by depressing built-in release buttons in an alternate design.
REFERENCES:
patent: 3142741 (1964-07-01), Bury
patent: 3249725 (1966-05-01), Hutt et al.
patent: 3412225 (1968-11-01), Rogers et al.
patent: 3548131 (1970-12-01), Piber
patent: 3552595 (1971-01-01), Gerner et al.
patent: 3676627 (1972-07-01), Happe
patent: 3715450 (1973-02-01), Martin
patent: 3732388 (1973-05-01), Taylor
patent: 3813636 (1974-05-01), Mason
patent: 3814886 (1974-06-01), Piber
Autio William A.
Eaton Corporation
Pollard Steven M.
Rather Hugh R.
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