Air motor having angular displacement control means

Details Air motor having angular displacement control means Air motor having angular displacement control means

1977-03-18

1978-04-11

Jones, Jr., James L.

Tools

Wrench, screwdriver, or driver therefor

B25B 1900

Patent

active

040832708

ABSTRACT:
A power tool operated by an air motor having a rotor with radially moving vanes, and means for counting the vanes passing an electro-magnetic sensor mounted on the motor housing. A valve connected to the counter is operative to terminate rotation of the motor and the tool when the vanes corresponding to a predetermined angle of rotation have passed adjacent the sensor.

REFERENCES:
patent: 1002139 (1911-08-01), Drisko
patent: 3011480 (1961-12-01), Vilmerding
patent: 3368396 (1968-02-01), Van Burkleo et al.
patent: 3454111 (1969-07-01), Wiess
patent: 3996800 (1976-12-01), Rosso

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