Tools – Wrench – screwdriver – or driver therefor – Having work engaging and force exerting portion inserted...
Patent
1994-11-30
1996-07-09
Kisliuk, Bruce M.
Tools
Wrench, screwdriver, or driver therefor
Having work engaging and force exerting portion inserted...
81438, B25B 2300
Patent
active
055334296
ABSTRACT:
In order to enhance the effectiveness of a tool for driving a fastener in a clockwise and/or counterclockwise direction, the tool includes a fastener engaging portion, a rotational movement imparting portion, and a releasably retaining portion. The fastener engaging portion is adapted to matingly engage a fastener for clockwise and/or counterclockwise driven movement in response to rotational movement of the fastener engaging portion. The rotational movement imparting portion is adapted to impart rotational movement to the fastener engaging portion to thereby impart driven movement of the fastener in the clockwise and/or counterclockwise direction. The releasably retaining portion is adapted to releasably retain the fastener engaging portion in operative relationship with the rotational movement imparting portion. In addition, the releasably retaining portion transmits rotational movement in a direct and positive manner and includes an expandable/contractible spring for releasably gripping the fastener engaging portion.
REFERENCES:
patent: 3114401 (1963-12-01), Johnson
patent: 4404874 (1983-09-01), Lieser
patent: 4926721 (1990-05-01), Hsiao
patent: 5309798 (1994-05-01), Markwart et al.
patent: 5335409 (1994-08-01), Elvebak
patent: 5341705 (1994-08-01), Lin
Danganan Joni B.
Kisliuk Bruce M.
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