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US 5,005,449 AGranted
Hand tool or improved bar clamp
AssigneePeterson Manufacturing Company
InventorsJoseph A. Sorensen, Dwight L. Gatzemeyer
Life of this patent
Estimating the term…
Abstract
A hand tool or clamp, which is operable with one hand, includes a fixed jaw and a movable jaw. The movable jaw connects at one end to a movable slide bar. One way drive means, by operation of a trigger handle, releasably engages the slide bar with advances the movable jaw toward the fixed jaw or away from the fixed jaw. Disengagement of the one way drive means will allow for manual return movement of the movable jaw.
Claims20
A hand tool comprising:
- a fixed jaw;
- a movable jaw;
- a slide bar, said movable jaw being mounted to said slide bar;
- support means for supporting said slide bar;
- said fixed jaw extending outwardly from said support means and having at least a front portion facing said movable jaw, said support means having a handgrip extending longitudinally along said slide bar;
- receiving means in the vicinity of the junction between said front portion of the fixed jaw and said support means, a braking lever pivotable at said receiving means and having an engaging portion extending outwardly from said support means,
- one-way drive means for releasably engaging and, when engaged, for advancing said slide bar and movable jaw, said one-way drive means having at least a driving lever;
- and
- a trigger handle pivotably mounted at said support means and contacting said driving lever, said trigger handle having a gripping portion extending longitudinally along said slide bar.
6 more elements
A hand tool comprising:
- a fixed jaw;
- a movable jaw opposing said fixed jaw;
- a slide bar, said movable jaw being mounted on one end of said slide bar, said slide bar being movable to bring said movable jaw toward and away from said fixed jaw;
- support means for supporting said slide bar, said fixed jaw being mounted to said support means, said support means having a handgrip extending longitudinally along said slide bar;
- one-way drive means for releasably engaging and, when engaged, for advancing said slide bar and attached movable jaw,
- said one-way drive means having a driving lever, and a braking lever normally engaging said slide bar, said braking lever when engaging said slide bar preventing motion of said movable jaw away from said fixed jaw, and when disengaging said slide bar allowing advancement of said movable jaw away from said fixed jaw;
- a trigger handle pivotably mounted to said support means and contacting said driving lever, said trigger handle having a gripping portion extending longitudinally along said slide bar,
- whereby reciprocal motion of at least said gripping portion of the trigger handle toward and away from said slide bar resulting in said driving lever engaging and moving said slide rod and said movable jaw toward said fixed jaw.
5 more elements
Dependencies are inferred from the claim text.