B - Operations – Transporting – 25 – D
Patent
B - Operations, Transporting
25
D
172/25
B25D 17/12 (2006.01) B25C 1/04 (2006.01)
Patent
CA 1170577
MUFFLER FOR FASTENER DRIVING TOOL Abstract of the Disclosure A tool for driving fasteners includes a housing defining a handle portion and a nose portion. A driver is reciprocally mounted within the housing as is an assembly for driving the driver through a fastener driving stroke. A muffler is mounted in the housing adjacent and in fluid communication with the nose portion. The muffler includes a chamber defined within the housing and a tubular muffler element mounted within the chamber. The tubular muffler element includes a plurality of holes therein and communi- cates with at least one exhaust port. A second muffler element is mounted within the chamber and encircles the tubular muffler element.
377120
Geist Bernard W.
Novak Raymond F.
Duo-Fast Corporation
Smart & Biggar
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