Tools – Wrench – screwdriver – or driver therefor – Pivoted outer jaw
Patent
1997-02-19
1998-05-05
Smith, James G.
Tools
Wrench, screwdriver, or driver therefor
Pivoted outer jaw
81 97, 81 98, 81126, B25B 1328
Patent
active
057460973
ABSTRACT:
A wrench for driving a fastener includes a fixed jaw formed on one end of a handle. A pivotal jaw is pivotally coupled to the handle at a pivot axle. A knob is slidably engaged on the handle. A resilient blade pivotally couples the knob to the pivotal jaw for allowing the knob to move the pivotal jaw toward the fixed jaw when the knob is moved toward the pivotal jaw. The handle includes a slot, the knob includes a projection extended inward of the slot for engaging with a spring which may bias the knob toward the pivotal jaw.
REFERENCES:
patent: 1635930 (1927-07-01), Forsdahl
patent: 1672804 (1928-06-01), Conrad
patent: 2559974 (1951-07-01), Kunz
patent: 2655064 (1953-10-01), Simon et al.
patent: 4651597 (1987-03-01), Yang
Baxley Charles E.
Smith James G.
Wilson Lee
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