Rachet wrench

Details Rachet wrench Rachet wrench

1997-10-16

1999-10-19

Smith, James G.

Tools

Wrench, screwdriver, or driver therefor

Machine

81 63, 81438, B25B 1346

Patent

active

059670029

ABSTRACT:
The present invention relates to an air driven and manual rachet wrench. The wrench of the present invention includes a rotor which is rotated by way of an oscillatory member. The oscillatory member, in turn, is driven by way of an air powered drive assembly. A star shaped aperture is centrally formed within the rotor. This aperture is adapted to accept the stems of a variety of sockets. Although the rotor only rotates in one sense, the sockets can be inserted into either of the opposing faces of the rotor. Thus, through changing the face into which the socket is inserted, both clockwise and anti-clockwise socket rotation can be achieved.

REFERENCES:
patent: 3151512 (1964-10-01), Charczenko
patent: 3344518 (1967-10-01), Roth
patent: 3786698 (1974-01-01), Diehl et al.
patent: 3941017 (1976-03-01), Lenker et al.
patent: 4346630 (1982-08-01), Hanson
patent: 4372181 (1983-02-01), Tinsley
patent: 4646594 (1987-03-01), Tien
patent: 4722252 (1988-02-01), Fulcher et al.
patent: 4987802 (1991-01-01), Chern
patent: 4993288 (1991-02-01), Anderson et al.

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