Oil pressure type impulse torque generator for wrench

Details Oil pressure type impulse torque generator for wrench Oil pressure type impulse torque generator for wrench

1989-07-31

1990-11-06

Yost, Frank T.

Tool driving or impacting

Impacting devices

With anvil arranged to transmit torsional impact to tool

173 935, 464 25, B25D 1500

Patent

active

049678523

ABSTRACT:
An oil pressure type impulse torque generator for a wrench. Either one of both seal surfaces on the main shaft side and the liner side is made a variable type by floating in order to eliminate "burning" and wear at the seal surfaces. The seal surfaces may be formed by rollers.

REFERENCES:
patent: 3292391 (1966-12-01), Kramer et al.
patent: 3952814 (1976-04-01), Gelfand et al.
patent: 4553948 (1985-11-01), Tatsuno
patent: 4766787 (1988-08-01), Sugimoto et al.

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