E - Fixed Constructions – 02 – D
Patent
E - Fixed Constructions
02
D
61/90
E02D 7/06 (2006.01) B25D 9/04 (2006.01) B25D 11/10 (2006.01) E02D 7/14 (2006.01)
Patent
CA 1083367
ABSTRACT OF THE DISCLOSURE A power hammer having an elongated hammer element disposed in a tubular housing for reciprocating motion therein and having a cylindrical cam concentrically mounted with respect to the tubular housing for displacing the hammer element against the force of a compression spring. When a point in the cam profile is reached which drops off abruptly, the hammer element is driven against an anvil member also disposed in the tubular housing. The cam is adapted to be driven by either an electric motor or another suitable source of rotational power.
308546
Frayne & Company Robert
Wilson Roger A.
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