Power hammer

Details Power hammer Power hammer

1977-12-29

1979-10-16

Staab, Lawrence J.

Tool driving or impacting

Impacting devices

Hammer head driven by electric motor

173119, 173123, 173133, B25D 900

Patent

active

041710240

ABSTRACT:
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.

REFERENCES:
patent: 1029824 (1912-06-01), Rodrigues
patent: 1925289 (1933-09-01), Strobel
patent: 2492840 (1949-12-01), Bugg
patent: 2888246 (1959-05-01), Sieber
patent: 3256946 (1966-06-01), Jansen et al.
patent: 3924692 (1975-12-01), Saari
patent: 4082152 (1978-04-01), Whitworth

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