Shut-off apparatus for pneumatic driven tools

Details Shut-off apparatus for pneumatic driven tools Shut-off apparatus for pneumatic driven tools

B - Operations, Transporting

23

P

121/6

B23P 19/06 (2006.01) B25B 23/145 (2006.01)

Patent

CA 1128822

IMPROVED SHUT-OFF APPARATUS FOR PNEUMATIC DRIVEN TOOLS Abstract of the Disclosure The improved shut-off apparatus for pneumatically driven tools includes an auxiliary shut-off valve located in the flow passageway. The valve is controlled by a control rod which extends through the air motor into en- gagement with a latching device. The latching device is held in the latched position with the valve open by a movable weighted control member. The movable weighted control member is responsive to inertia so that as the speed of the air motor decreases due to a torque load im- posed thereon, the shaft slows causing the inertial move- ment of the weighted member to release the latching device permitting the auxiliary shut-off valve to close.

341602

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