Safety start switch for a pneumatic tool

Electricity: circuit makers and breakers – Electric switch details – Actuators

Reexamination Certificate

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Details

C200S043170, C200S322000, C200S334000

Reexamination Certificate

active

11143136

ABSTRACT:
A safety start switch for a pneumatic tool including a main body, a compression strip, a push knob, a coupling element, a spring, and a pivot pin. After a corresponding arrangement of the above-mentioned components, the compression strip is not compressible in the ordinary state since the coupling element rests on the blocking portion of the main body. Meanwhile, the compression strip is downwardly swiveled to move the piston in the same direction responsive to the removal of the coupling element from the blocking position of the coupling element when the push knob is shifted against the resilience of the spring.

REFERENCES:
patent: 3881081 (1975-04-01), Schilling et al.
patent: 4381037 (1983-04-01), Cuneo
patent: 5698122 (1997-12-01), Lubieniecki et al.
patent: 6025574 (2000-02-01), Colangelo, Jr.
patent: 6695072 (2004-02-01), Izumisawa
patent: 6700091 (2004-03-01), Jones et al.
patent: 6854631 (2005-02-01), Burke et al.

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