Tool driving or impacting – Passage in manipulating handle for drive motor motive fluid – Motive fluid control valve in handle passage
Patent
1978-12-26
1980-12-02
Feldbaum, Ronald
Tool driving or impacting
Passage in manipulating handle for drive motor motive fluid
Motive fluid control valve in handle passage
B23B 4504
Patent
active
042365899
ABSTRACT:
A vacuum motor comprising a housing with a eccentrically mounted rotor composed of a rotor-body having a plurality of radially extending equi-spaced slits extending axially and a plurality of slidable vane members, one of which is in each of said rotor slits; there are a plurality of passageways in a sleeve coaxially lining the stator and a pair of spaced holes are provided in a control member slidable captivated on the stator to selectively control suction forces applied to the vanes from a source so as to provide a differential pressure on one of the vanes on one face while the other face of the vane is exposed to atmospheric pressure, whereby, upon selective operation of a trigger mechanism to control suction application, the rotor will turn to deliver power to drive a gear train or other suitable mechanical mechanism for producing useful work, as is set forth more fully hereinafter.
REFERENCES:
patent: 2233163 (1941-02-01), Fosnot
patent: 2382591 (1945-08-01), Warren
patent: 2493957 (1950-01-01), Fitch
patent: 2768546 (1956-10-01), Amtsberg
patent: 3169585 (1965-02-01), Maurer
patent: 3195702 (1965-07-01), Alexander
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patent: 3352368 (1967-11-01), Maffey
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patent: 3951217 (1976-04-01), Wallace et al.
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