B - Operations – Transporting – 27 – F
Patent
B - Operations, Transporting
27
F
1/32
B27F 7/09 (2006.01) B25C 1/00 (2006.01) B25C 1/04 (2006.01) B25C 5/16 (2006.01)
Patent
CA 1284552
FASTENER DRIVING TOOL Abstract of the Disclosure A pneumatic fastener driving tool includes a return system for efficiently and rapidly returning a drive piston to the static position and effecting a fastener feeding operation. A housing defines a pres- sure fluid reservoir connected by a pneumatic control system to a first side of a drive piston to move a driver blade through a drive track in a drive stroke. A pressure fluid actuated fastener feed assembly ad- vances fasteners along a feed path to the drive track. Following a drive stroke, the return system connects the reservoir to the second side of the drive piston for moving the drive piston and driver blade in a return stroke. The return system also connects the reservoir to the fastener feeding assembly for feeding of a fastener. The return system includes two separate return valves operable at different flow capacities and fluid pressures for drive piston return and for fastener feeding.
533542
Novak Raymond F.
Schaudek Ernest F.
Duo-Fast Corporation
Novak Raymond F.
Schaudek Ernest F.
Smart & Biggar
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