Locating structure of an adjustable open wrench

Details Locating structure of an adjustable open wrench Locating structure of an adjustable open wrench

2007-10-23

2007-10-23

Thomas, David B (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Slidable jaw adjustments

C081S170000

Reexamination Certificate

active

11448665

ABSTRACT:
A locating structure of an adjustable open wrench including: a main body having a handle and a head section, a first end of the head section being fixedly connected with the handle; a first jaw disposed on a second end of the head section; a second jaw slidably disposed on the second end of the head section and linearly reciprocally movable relative to the first jaw for changing a pitch between two opposite faces of the second and first jaws; an adjustment member including a second rack fixedly disposed at one end of the second jaw, a driving threaded rod with a predetermined guide travel being pivotally located in the head section and engaged with the second rack, whereby via the second rack, the driving threaded rod can be rotated to drive the second jaw to linearly move; and a locating member including a locating body disposed in the head section and reciprocally movable between a locating position and a releasing position. When the locating body is positioned in the locating position, the locating body is engaged with the driving threaded rod. When the locating body is positioned in the releasing position, the locating body is disengaged from the driving threaded rod.

REFERENCES:
patent: 1423803 (1922-07-01), Illig
patent: 1484132 (1924-02-01), Jones
patent: 1617488 (1927-02-01), Johnson
patent: 2719449 (1955-10-01), Johnson
patent: 2722150 (1955-11-01), Green
patent: 2813444 (1957-11-01), Hatch, Jr.
patent: 2849908 (1958-09-01), Swanstrom et al.
patent: 2913942 (1959-11-01), Rozmus
patent: 5960683 (1999-10-01), Malkin et al.
patent: 6116121 (2000-09-01), Kitt, Jr.

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