Tools – Wrench – screwdriver – or driver therefor – Rigid jaws
Patent
1996-07-17
1998-07-21
Smith, James G.
Tools
Wrench, screwdriver, or driver therefor
Rigid jaws
811211, 811244, 81186, B25B 1300, B25B 1358
Patent
active
057821488
ABSTRACT:
A wrench socket has a fastener receiving recess extending inwardly from an end face of the socket. A first set of equally spaced-apart long points and a second set of equally spaced-apart short points are formed on the inner surface of the recess, each short point located between two long points. The points are parallel to the longitudinal axis of the recess. The long points extend inwardly from the end face for a length that is substantially greater than the height of the fastener element that fits within the recess while the short points extend inwardly from the end face for a length that allows axial pressure to be applied to the fastener element by the inner ends of the short points. Preferably the second set of points extend inwardly from the end face for a length that is slightly less than the height of the fastener element.
REFERENCES:
patent: 445451 (1891-01-01), Miller
patent: 838109 (1906-11-01), Hanes et al.
patent: 2848916 (1958-09-01), Reynolds
patent: 2956462 (1960-10-01), Paul
patent: 3273430 (1966-09-01), Knudsen et al.
patent: 3433018 (1969-03-01), Ondeck
patent: 3620106 (1971-11-01), Dixon
patent: 3668951 (1972-06-01), Talmage
patent: 4598616 (1986-07-01), Colvin
patent: 5544555 (1996-08-01), Corley et al.
patent: 5615587 (1997-04-01), Foerster, Jr.
Smith James G.
Wilson Lee
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