Tools – Wrench – screwdriver – or driver therefor – Rigid jaws
Patent
1988-12-16
1989-11-28
Smith, James G.
Tools
Wrench, screwdriver, or driver therefor
Rigid jaws
B25B 1306
Patent
active
048829579
ABSTRACT:
A wrench for turning a fastener nut having a central axis and an even-numbered plurality of flat bounding surfaces parallel to the central axis with diametrically opposite pairs being parallel to each other. The wrench includes a fastener nut engaging socket defined about a central socket axis by a plurality of uniformly spaced peripherally and radially disposed protuberances and plurality of uniformly spaced corner recesses disposed between the protuberances. Each protuberance includes side-by-side angularly related straight engaging surfaces at substantially 142.degree. outside obtuse angles to each other for registry with the flat surfaces on the fastener nut and complementary side surfaces outwardly diverging from said engagement surfaces. Each recess is comprised of a first arcuate surface tangential to a circle about the central axis of the socket and transitional surfaces converging from the side surfaces of adjacent protuberances toward the first arcuate surface.
REFERENCES:
patent: 2777353 (1957-01-01), Willis
patent: 3079819 (1963-03-01), Wing
patent: 3125910 (1964-03-01), Kavalar
patent: 3242775 (1966-03-01), Hinkle
patent: 3273430 (1966-09-01), Knudsen et al.
patent: 3354757 (1967-11-01), Grimm et al.
patent: 3466956 (1969-09-01), Bowers
patent: 3495485 (1970-02-01), Knudsen et al.
patent: 3675516 (1972-07-01), Knudsen et al.
patent: 3885480 (1975-05-01), Muenchinger
patent: 3903764 (1975-09-01), Andersen
patent: 3908488 (1975-09-01), Andersen
patent: 4010670 (1977-03-01), Lejdegard
patent: 4100824 (1978-07-01), Marschke
patent: 4361412 (1982-11-01), Stolarczyk
patent: 4512220 (1985-04-01), Barnhill, III et al.
patent: 4581957 (1986-04-01), Dossier
patent: 4598616 (1986-07-01), Colvin
Fleming Brent P.
Vozenilek Theodore M.
Wright Richard B.
Hochberg D. Peter
Smith James G.
Wright Tool Company
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