Hydraulic power wrench

Details Hydraulic power wrench Hydraulic power wrench

1989-01-11

1990-04-24

Meislin, D. S.

Tools

Wrench, screwdriver, or driver therefor

Machine

B25B 1346

Patent

active

049190180

ABSTRACT:
The power wrench is provided with a hydraulic cylinder unit (12) and a wrench head (10). The cylinder unit (12) is movable with an arm (11) of the wrench head along a female guiding track (15), which is substantially parallel to the axis (16) of the wrench head (10). This way, the wrench head (10) may be less wide than the cylinder unit (12) and the cylinder unit (12) can be set so as not to collide with obstacles near the screw head to be turned.

REFERENCES:
patent: 4309923 (1982-01-01), Wilmeth
patent: 4440046 (1984-04-01), Hirtsiefer et al.
patent: 4663997 (1987-12-01), Junkers

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