Electricity: circuit makers and breakers – Electric switch details – Actuators
Patent
1981-05-08
1983-08-16
Marcus, Stephen
Electricity: circuit makers and breakers
Electric switch details
Actuators
200157, H01H 920
Patent
active
043993400
ABSTRACT:
The invention is a trigger switch of the type having a pistol grip shaped housing (1) with a first trigger switch (10) mounted in the upward forward portion of the housing (1) and a second trigger switch (20) mounted immediately below said first trigger switch (10) and characterized by a trigger guard (30) which is pivotally mounted at the upward end thereof to said housing (1) so that the guard (30) may be moved from a first lower position that protects the second lower switch (20) from being operated to a second upper position that allows the second switch (20) to be operated and a member (60) fixedly mounted to the housing (1) adjacent to guard (30) and extending between the first and second positions of the guard (1) and including a boss (61) thereon that extends in the direction towards said guard (60) and is adapted to engage the guard (30) when the guard (30) is moved between the first and second positions. The boss (61) being sized to provide enough force between the member (60) and the guard (30) to prevent the guard (30) from returning to the first position, unless an operator of the trigger switch supplies additional force to the guard to return it to the first position.
REFERENCES:
patent: 2348393 (1944-05-01), Krieger
patent: 2712272 (1955-07-01), Trevaskis et al.
patent: 2791664 (1957-05-01), Rohacs
patent: 3142227 (1964-07-01), Stringer
patent: 3170050 (1965-02-01), Buturga
patent: 3198922 (1965-08-01), Rohacs
patent: 4276459 (1981-06-01), Willett et al.
patent: 4363944 (1982-12-01), Poirier
Crandall Norma M.
Doyle Raymond H.
Kunkler Walter F.
Cusick Ernest G.
Eifler Raymond J.
Marcus Stephen
The Bendix Corporation
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