Tool driving or impacting – Automatic control of power operated means – Tool advance causing or controlling means
Patent
1979-09-11
1984-11-06
Mackey, Robert R.
Tool driving or impacting
Automatic control of power operated means
Tool advance causing or controlling means
81470, B25B 23145
Patent
active
044806990
ABSTRACT:
The invention relates to a compressed-air screwdriver including a tool spindle, displacable against the action of a spring; an automatic shutoff having a valve for the motor, which upon attaining a predetermined torque is turned off and a device whose actuation, after the automatic shutoff, permits the motor to be put back into operation so that a screw can be further tightened or loosened with increased torque.
REFERENCES:
patent: 3195704 (1965-07-01), Linsker
patent: 3612236 (1971-10-01), Klinten
patent: 3811513 (1974-05-01), Wezeh
patent: 3993145 (1976-11-01), Findeli
patent: 4006785 (1977-02-01), Roll et al.
patent: 4088197 (1978-05-01), Roll et al.
Firma Schmid & Wezel
Greigg Edwin E.
Mackey Robert R.
LandOfFree
Compressed-air screwdriver with shutoff bypass means does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Compressed-air screwdriver with shutoff bypass means, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Compressed-air screwdriver with shutoff bypass means will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1038500