Motor-driven wrench

Details Motor-driven wrench Motor-driven wrench

1993-02-26

1994-10-18

Meislin, D. S.

Tools

Wrench, screwdriver, or driver therefor

Machine

81 573, B25B 2100

Patent

active

053557514

ABSTRACT:
A motor-driven wrench has an open rotatable wrench wheel having a wrench opening and an engaging formation, and a drive for rotary driving the wrench wheel and having at least two engaging portions which engage the engaging formation of the rotary wheel and are spaced from one another by a distance which is greater than a width of the wrench opening, a marking for identifying a position of the wrench opening, and a sensor recognizing the marking and controlling the position of the wrench wheel.

REFERENCES:
patent: 3535960 (1970-10-01), Borries
patent: 3602071 (1971-08-01), Juhasz
patent: 3987692 (1976-10-01), Lesner et al.
patent: 4064772 (1977-12-01), Boyd et al.
patent: 4357843 (1982-11-01), Peck et al.
patent: 4674366 (1987-06-01), Lauer et al.
patent: 5048377 (1991-09-01), Varis

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