Tool driving or impacting – Drive control operable by hand engaging manipulating handle
Patent
1977-11-14
1979-05-15
Hafer, Robert A.
Tool driving or impacting
Drive control operable by hand engaging manipulating handle
173163, B23B 4500
Patent
active
041543092
ABSTRACT:
A housing for a fluid actuated hand tool and of the type for use as a grinder, polisher, or the like, the housing comprising a cylindrical casing formed having a cavity extending substantially inwardly thereof, the rearward portion of the casing being formed having the various passages and channels through which the pressurized air or other fluids under pressure may traverse upon manipulation of a valve for attaining entrance to the motor encased within the cavity and to induce its actuation and rotation as during usage. The casing is comprised of an integral and unitized structure, having the motor cavity formed during its molding, and a cap threads onto the end of the casing so as to hermetically secure the motor therein during tool fabrication and application. A rearwardly extending exhaust passage leads to an integrally molded conduit formed upon the casing exterior surface, with said conduit also extending substantially rearwardly along the length of the tool housing for directing the exhausted spent air to the back of the tool and thereby diverting the exhaust in a direction directly opposite from the location where the work component, such as a grinding wheel, is being applied during tool usage.
REFERENCES:
patent: 1023594 (1912-04-01), Prellwitz
patent: 2939675 (1960-06-01), Karden
patent: 3181428 (1965-05-01), Volkmann
patent: 3724563 (1973-04-01), Wickham et al.
patent: 3753469 (1973-08-01), Tuttle
patent: 4018292 (1977-04-01), Roll et al.
Denk Paul M.
Hafer Robert A.
J & D Tool and Supply, Inc.
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