Reversible ratchet screwdriver

Details Reversible ratchet screwdriver Reversible ratchet screwdriver

1998-02-12

1999-06-08

Meislin, D. S.

Tools

Wrench, screwdriver, or driver therefor

Handle clutched to head

81 631, 192 431, B25B 1346

Patent

active

059101962

ABSTRACT:
A reversible ratchet screwdriver in which a shank having annular grooves around the periphery is retained in an axial center hole on a control head at one end of a handle by springs and steel balls, a ratchet shifter is moved in a transverse sliding slot on a shell around the control head to shift two stop plates between engaged position and disengaged position, enabling the shank to be turned with the handle in one direction only, or in two directions.

REFERENCES:
patent: 977957 (1910-12-01), Leopold
patent: 1132319 (1915-03-01), Fegley
patent: 2720296 (1955-10-01), Briglia
patent: 4290328 (1981-09-01), Clark
patent: 5379873 (1995-01-01), Shiao
patent: 5642794 (1997-07-01), Chuang et al.
patent: 5749272 (1998-05-01), Phan
patent: 5836430 (1998-11-01), Vasudera

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