Tool driving or impacting – Impacting devices – Spring bodily cyclically moved with hammer head
Patent
1977-07-28
1979-05-29
Staab, Lawrence J.
Tool driving or impacting
Impacting devices
Spring bodily cyclically moved with hammer head
173117, 310 50, H02K 714, B25D 900
Patent
active
041564685
ABSTRACT:
The housing for electric tools comprises a one-piece plastic construction and includes a handle part and a hollow housing part having a metal jacket therein which defines various cavities and bearing bushes and bores for the elements of a drive motor and an eccentric drive for a hammer drill.
REFERENCES:
patent: 2373842 (1945-04-01), Mitchell
patent: 3121178 (1964-02-01), Seyfried et al.
patent: 3517755 (1970-06-01), Badcock
patent: 3630293 (1971-12-01), Moores
patent: 3874460 (1975-04-01), Schmid et al.
patent: 3929195 (1975-12-01), Stiltz et al.
Hoyer Rudolf
Stiltz Erwin
Licentia Patent-Verwaltungs G.m.b.H.
Staab Lawrence J.
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