F - Mech Eng,Light,Heat,Weapons – 01 – N
Patent
F - Mech Eng,Light,Heat,Weapons
01
N
172/20
F01N 1/00 (2006.01) B23Q 11/00 (2006.01) G10K 11/172 (2006.01)
Patent
CA 1161764
ABSTRACT OF THE DISCLOSURE The sound produced by the movement of the teeth of a circular saw or band saw blade in air is substantially reduced by providing a cover including a pair of closely spaced parallel hard-wall plates positionable on both sides of the teeth. Pre- ferably the plates are spaced apart by a distance less than 21 mm and extend beyond the tips of the teeth by a distance several times the space between the plates. Portions of the plates may be movable to expose the teeth during the cutting operation.
332947
Bies David A.
Gowling Lafleur Henderson Llp
LandOfFree
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