Power wrench

Details Power wrench Power wrench

1994-09-01

1996-05-14

Meislin, D. S.

Tools

Wrench, screwdriver, or driver therefor

Machine

81 5744, B25B 1346

Patent

active

055157530

ABSTRACT:
The power wrench comprises a housing (10) consisting of a head portion (11) and a driving portion (12). The driving portion (12) includes a cylinder bushing (21) which is introduced into the housing (10) through an opening (22) on the side facing away from the head portion (11). The cylinder bushing (21) with the piston (28) contained therein can easily be exchanged. With a lock connection, the piston rod (29) engages the pivotable lever (17) included in the head portion so that it can be pulled off by the lever (17).

REFERENCES:
patent: 3272088 (1966-09-01), Kistler
patent: 4805496 (1989-02-01), Wagner et al.
patent: 4854197 (1989-08-01), Walton
patent: 4982626 (1991-01-01), More et al.
patent: 5165375 (1992-11-01), Hu
patent: 5167182 (1992-12-01), Sims
patent: 5263388 (1993-11-01), Beuke
patent: 5311797 (1994-05-01), Ruessmann et al.

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