Abstract: An air wrench, with a compressed air motor, a wrench head and a gearing for transferring the power of the motor to the head, as well as a control mechanism, which comprises at least one adjustable pressure reducer for limiting the torque and which permits the wrench to be switched on and off manually by opening and closing a main air valve in the compressed air line to the motor of the wrench.
Type:
Grant
Filed:
November 12, 1987
Date of Patent:
July 11, 1989
Assignees:
Gunter Otto, Johannes Lubbering, Christian Reckendrees