Elongated-member-driving apparatus – With interlock means
Patent
1995-03-14
1996-06-04
Smith, Scott A.
Elongated-member-driving apparatus
With interlock means
227130, B25C 104
Patent
active
055225322
ABSTRACT:
A single-shooting/continuous-shooting control switch installed in a pneumatic nail gun for controlling the firing of nails, the control switch including a first valve seat connected to a pneumatic pressure source, a second valve seat connected between the first valve seat and the firing pin of the pneumatic nail gun, a first valve rod moved by the trigger of the pneumatic nail gun to control the air passage between the first air valve seat and the second air valve seat, a second valve rod moved by the trigger of the pneumatic nail gun to control the air passage between the second air valve seat and the firing pin, and a stop block turned about the first valve rod between between a first position for letting the first valve rod be lifted by the trigger to stop the passage between the first air passage and the second air passage for a single-shooting operation, and a second position to stop the trigger from lifting the first valve rod for letting pneumatic pressure be continuosuly drawn from the first air valve seat into the second air valve seat for a continuous shooting operation.
REFERENCES:
patent: 3198412 (1965-08-01), Roosa
patent: 3563438 (1971-02-01), Doyle et al.
patent: 4915013 (1990-04-01), Moraht et al.
patent: 5174485 (1992-12-01), Meyer
Smith Scott A.
Testo Industry Corp.
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