Tool driving or impacting – Automatic control of power operated means – Tool advance causing or controlling means
Patent
1983-11-30
1986-06-03
Meister, James M.
Tool driving or impacting
Automatic control of power operated means
Tool advance causing or controlling means
173163, B23P 1900
Patent
active
045924309
ABSTRACT:
A tool has a housing, a reversible fluid-pressure operated rotary motor which is arranged to drive a bit holder via reduction gear boxes and a clutch which is designed to slip at a predetermined torque. When a trigger is pressed, pressure air is delivered via a valve to the motor, and in a first position of the valve the motor is driven in a forward direction. When the predetermined torque is reached, the clutch slips and displaces an actuator which opens another valve. This in turn creates a pressure differential across the valve which causes it to move to its second position in which pressure air is delivered to the motor to drive it in the reverse direction. When the trigger is released, the valves return to their original positions.
REFERENCES:
patent: 3791459 (1974-02-01), Workman
patent: 4154308 (1979-05-01), Goldsberry et al.
Burton Ian S.
Hall Raymond J.
Compair Power Tools Limited
Knoble John L.
Meister James M.
LandOfFree
Fluid-pressure operated tools does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fluid-pressure operated tools, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fluid-pressure operated tools will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1228526