Abstract: A hand tool consists of a movable jaw, a slide bar wherein the movable jaw is mounted to the slide bar. A support assembly is provided for supporting the slide bar. A stationary jaw is spaced away from the support assembly and is provided with at least a front portion. A one-way drive arrangement is designed having at least a driving lever. A cam having a longitudinally extending handle is pivotally mounted at the support assembly and contacts the driving lever. The cam disengages the driving lever when the one-way drive arrangement is released from the slide bar, and the cam engages the driving lever when the one-way drive arrangement engages the slide bar.

Abstract: A bar clamp having a fixed jaw and a movable jaw which is radially movable over both short and long distances to clamp against a workpiece and is operable using one hand with complete control by the operator at all times. The jaws may either face one another while being mounted on the same side of a handle/grip assembly or face in opposite directions while being mounted on opposite sides of the handle/grip assembly whereby they may be incrementally advanced by the trigger handle/driving lever. The movable jaw may also be a clamp jaw affixed to a handle assembly which moves toward a substrate.

Abstract: A bar clamp having a fixed jas and a movable jaw which is radially movable over both short and long distances to clamp against a workpiece and is operable using one hand with complete control by the operator at all times. The jaws may either face one another while being mounted on the same dise of a handle/grip assembly or face in opposite directions while being mounted on opposite sides of the handle/grip assembly whereby they may be incrementally advanced by the trigger handle/driving lever. Another embodiment uses a substrate comprising a plurality of apertures to receive posts thus acting as a vise type of clamp/wrench.

Abstract: A bar 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 grip, releasably engages the slide bar and advances the movable jaw toward the fixed jaw. Return motion of the movable jaw is accomplished manually when the one-way drive means is disengaged. A braking lever, biased to bind against the slide bar, prevents reverse motion of the movable jaw except when disengaged from the slide bar. The trigger handle advances the slide bar by driving a second lever which binds against a slide bar surface. The second lever returns by spring force to its original position after each stroke of the trigger handle.

Abstract: A bar clamp having a fixed jaw and a movable jaw which is radially movable over both short and long distances to clamp against a workpiece and is operable using one hand with complete control by the operator at all times. The jaws may either face one another while being mounted on the same side of a handle/grip assembly or face in opposite directions while being mounted on opposite sides of the handle/grip assembly whereby they may be incrementally advanced by the trigger handle/driving lever.

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.

Abstract: A bar 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 grip, releasably engages the slide bar and advances the movable jaw toward the fixed jaw. Return motion of the movable jaw is accomplished manually when the one-way drive means is disengaged. A braking lever, biased to bind against the slide bar, prevents reverse motion of the movable jaw except when disengaged from the slide bar. The trigger handle advances the slide bar by driving a second lever which binds against a slide bar surface. The second lever returns by spring force to its original position after each stroke of the trigger handle.