Open-ended wrench

Details Open-ended wrench Open-ended wrench

1987-05-19

1988-10-04

Olszewski, Robert P.

Tools

Wrench, screwdriver, or driver therefor

Rigid jaws

811778, B25B 2316

Patent

active

047748621

ABSTRACT:
The invention is a single jaw (52) seven point (70, 72, 74, 76, 78, 80 and 82) open-ended wrench (50) having a double square socket (64) attached to one opposite ends (60) spaced by an opening (62) from the other opposite end (58). The jaw (52) is dynamically stiffened and has a substantial jaw support (66). Where the arc of the jaw ends, there are flat surfaces (96, 102 and 98, 104) to receive opposite flat sides (108, 110) of a six point nut (112) or the nut may be received by moving the wrench in the direction of the axis of the nut to thereby engage it. The drive socket (64) is positioned at 90.degree. from the jaw opening (62).

REFERENCES:
patent: 661011 (1900-10-01), Converse
patent: 1276071 (1918-08-01), Ringling
patent: 1479772 (1924-01-01), Cook
patent: 1861207 (1932-05-01), Burns
patent: 1942492 (1934-01-01), Ratigan
patent: 2334069 (1943-11-01), Collins et al.
patent: 2618996 (1952-11-01), Logan
patent: 3875828 (1975-04-01), Evans
patent: 4130032 (1978-12-01), Giandomenico et al.
patent: 4222293 (1980-09-01), Schreyer et al.
patent: 4688454 (1967-08-01), Scull

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