A self-centering vial clamp is provided. The self-centering vial clamp includes a clamp body including a vial aperture and two or more jaw slots spaced around the vial aperture, two or more clamp jaws spaced around the vial aperture, with a clamp jaw including a vial contact face and one or more jaw projections configured to engage a jaw slot of the clamp body, and two or more lever arms coupled to the two or more clamp jaws. A lever arm of the self-centering vial claim is configured to be manually pivoted, wherein the lever arm translates the pivoting motion into a sliding motion of the corresponding clamp jaw. Interacting lever gears formed on the lever arms constrain the two or more clamp jaws to move substantially in unison during the manual pivoting, aligning the vial.

This apparatus supports gripping, manipulation and/or insertion or removal of a planar workpiece from a receptacle into which it fits tightly. The apparatus has two substantially identical rigid arms attached to one another at a single pivot point near their longitudinal center. One end of each arm forms a handle; pressing or releasing these two handles actuates the gripper. The other end of each arm has attached on its inside surface a rigid plate. Together these two substantially parallel plates form jaws to grip the planar workpiece. A spring attached to the two handles biases the jaws toward the closed position. An optional adjustable stop mechanism supports setting the gap between jaws when the apparatus is in the closed position. An alternative embodiment utilizes step-shaped jaws for applications where flat jaws are difficult to utilize.

A clamping device includes: a clamp assembly and an adjustment assembly, the clamp assembly comprises two symmetrical clamp arms which are oppositely hinged to each other. Each of the clamp arms includes two identical and parallel clamp pieces, and a jaw, the jaw is detachably connected between the two clamp pieces, a lower edge of the jaw includes, in order from left to right, a first arc-shaped section, a second arc-shaped section and a horizontal section, the bottoms of the first arc-shaped section, the second arc-shaped section and the horizontal section are at a same plane, the first and second arc-shaped sections are symmetrical to each other, an angle is defined between the first and second arc-shaped sections, a V-shaped groove is defined between the second arc-shaped section and the horizontal section, and the first and second arc-shaped sections are each longer than the horizontal section.

A clamping device includes: a clamp assembly and an adjustment assembly, the clamp assembly comprises two symmetrical clamp arms which are oppositely hinged to each other. Each of the clamp arms includes two identical and parallel clamp pieces, and a jaw, the jaw is detachably connected between the two clamp pieces, a lower edge of the jaw includes, in order from left to right, a first arc-shaped section, a second arc-shaped section and a horizontal section, the bottoms of the first arc-shaped section, the second arc-shaped section and the horizontal section are at a same plane, the first and second arc-shaped sections are symmetrical to each other, an angle is defined between the first and second arc-shaped sections, a V-shaped groove is defined between the second arc-shaped section and the horizontal section, and the first and second arc-shaped sections are each longer than the horizontal section.

A clamping tool having an elongated housing, a handle, a thrust plate, a screw member, a linearly movable actuator, and first and second clamping arms is provided. When the handle and the screw member are rotated in a first rotational direction, the linearly movable actuator moves in a first longitudinal direction which induces first and second coupling members to slide within first and second end plate slots, respectively, of a first end plate of the linearly movable actuator, and the first and second clamping arms rotate about third and fourth coupling members, respectively, from a first operational position to a second operational position.

A clamping tool having an elongated housing, a handle, a thrust plate, a screw member, a linearly movable actuator, and first and second clamping arms is provided. When the handle and the screw member are rotated in a first rotational direction, the linearly movable actuator moves in a first longitudinal direction which induces first and second coupling members to slide within first and second end plate slots, respectively, of a first end plate of the linearly movable actuator, and the first and second clamping arms rotate about third and fourth coupling members, respectively, from a first operational position to a second operational position.

A tool is used in securing or clamping two or more workpieces together provides a visual indication to a user of the tool of an acceptable range of compression pressure exerted by the tool on a work surface of the workpieces and a visual indication of when a maximum compression pressure exerted by the tool on the work surface has been exceeded.

A tool is used in securing or clamping two or more workpieces together provides a visual indication to a user of the tool of an acceptable range of compression pressure exerted by the tool on a work surface of the workpieces and a visual indication of when a maximum compression pressure exerted by the tool on the work surface has been exceeded.

A clean toggle clamp is configured to operate without creating excessive debris. The clean toggle clamp includes a base; an arm rotationally coupled to the base via a first bearing isolated rod; a clamping element; a handle is rotationally coupled to the arm via a second bearing isolated rod. The handle includes a revolving latching pin and a linkage rotationally coupled on a first end to the handle via at least one third bearing isolated rod and on a second end to the base via a fourth bearing isolated rod. The toggle clamp includes a secondary latch rotationally coupled to the base and configured to engage the revolving latching pin to inhibit movement of the handle and arm. The handle, arm, linkage and secondary latch are configured to rotate without a frictional sliding of any of surface of the arm, the handle, the linkage or the base.

A clean toggle clamp is configured to operate without creating excessive debris. The clean toggle clamp includes a base; an arm rotationally coupled to the base via a first bearing isolated rod; a clamping element; a handle is rotationally coupled to the arm via a second bearing isolated rod. The handle includes a revolving latching pin and a linkage rotationally coupled on a first end to the handle via at least one third bearing isolated rod and on a second end to the base via a fourth bearing isolated rod. The toggle clamp includes a secondary latch rotationally coupled to the base and configured to engage the revolving latching pin to inhibit movement of the handle and arm. The handle, arm, linkage and secondary latch are configured to rotate without a frictional sliding of any of surface of the arm, the handle, the linkage or the base.