B - Operations – Transporting – 25 – D
Patent
B - Operations, Transporting
25
D
121/28, 143/44
B25D 9/16 (2006.01) B23D 51/01 (2006.01) B23D 51/18 (2006.01) F01B 11/00 (2006.01) F01L 23/00 (2006.01)
Patent
CA 1111321
-1- PNEUMATIC RECIPROCAL ACTION TOOL Abstract of the Disclosure A valving apparatus for a pneumatically driven tool such as a hacksaw actuated by a double acting piston within a pneumatic cylinder having a rod member slidably supported within the piston's piston rod with one end connected to a valve member mounted for movement between detented positions in a housing attached to the cylinder. The rod member includes a pair of flanged sleeve members yieldably mounted thereon with a coil spring interposed therebetween. The flanges of the sleeve members cooperate with abutments within the piston rod to alternately compress the coil spring and effect limited unified movement of the rod member and piston rod to release the valve member from each of its detented positions which is then quickly slid to the other of its detented positions by the energy stored within the coil spring.
328328
Rockwell International Corporation
Smart & Biggar
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