Inlet control valve

B - Operations – Transporting – 23 – B

Patent

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77/17, 251/25

B23B 45/04 (2006.01)

Patent

CA 1132119

IMPROVED INLET CONTROL VALVE Abstract of the Disclosure The inlet control valve described herein is use- ful in connection with pneumatic tools or the like that include a hollow tool body containing an air motor. A control valve is disposed in an inlet passageway extending to the air motor. The valve includes a first valve member that has a seal engaging an annular valve seat. A second valve member extends through a bore in the first valve member and is disposed in sealing engagement with a second annular seal member carried by the first valve member. The second valve member includes an operating member that also extends through the bore into engagement with the trigger mechanism of the tool so that displacement of the trigger to a first position tilts the second valve member off its seat permitting restricted flow through the passageway. Additional movement of the trigger displaces the first or main valve member off its seat permitting the maximum flow through the passageway.

363033

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