Tools – Wrench – screwdriver – or driver therefor – Rigid jaws
Patent
1992-10-29
1993-10-26
Meislin, D. S.
Tools
Wrench, screwdriver, or driver therefor
Rigid jaws
811247, 811771, B25B 1306
Patent
active
052555780
ABSTRACT:
A wrench includes a positioning device for engagement with an object to be driven in order to retain the object in place relative to the head portion of the wrench. The positioning device includes a protrusion formed on the head portion, a depression formed in the protrusion, a spring and a stub received in the depression. The stub is biased outward of the protrusion for engagement with the object.
REFERENCES:
patent: 3447405 (1969-06-01), Lennon et al.
patent: 4823652 (1989-04-01), Morrissey et al.
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