Tools – Wrench – screwdriver – or driver therefor – Rigid jaws
Patent
1988-07-07
1990-01-30
Hartman, Judy
Tools
Wrench, screwdriver, or driver therefor
Rigid jaws
811243, B25B 1304
Patent
active
048965715
ABSTRACT:
A plumbing tool having a ring with a circular structure defining an opening that extends through the circular structure. The circular structure is formed with a slot, and a pair of threaded apertures are disposed on opposite sides of the opening in order to communicate with the same. Each of the threaded apertures terminate in a recess disposed within the circular structure and communicating with the respective threaded aperture. A bolt threadably passes through the pair of threaded apertures for winding and narrowing the opening. A second pair of threaded apertures extend through the circular structure in a generally opposed relationship for threadably receiving a pair of handles.
REFERENCES:
patent: 1228951 (1917-06-01), Morton
patent: 1329560 (1920-02-01), Thomas
patent: 1838278 (1931-12-01), Montagnon
patent: 3231955 (1966-02-01), Taylor
Carpenter John W.
Hartman Judy
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