A carrying device is provided. The carrying device includes a stand, an upper clamp connected to the stand, a lower clamp assembled to the stand, a manipulation mechanism assembled to the stand and interlinked with the lower clamp, and a supporting column assembled to the lower clamp. The manipulation mechanism can drive the lower clamp to move relative to the upper clamp, and the upper clamp and the lower clamp jointly define a receiving space therebetween. The supporting column is movable relative to the lower clamp, so that the carrying device can be adjusted in a first clamping mode or a second clamping mode. When the carrying device is in the first clamping mode, the supporting column is located in the receiving space and faces toward the upper clamp, so that the supporting column and the upper clamp can jointly clamp a plate part of a first structure.

The Trapdoor Clamp is the only product of its kind that allows individuals to safely place tools onto a highly adjustable platform to improve functionality of modern aerial lifts. The Trapdoor Clamp is uniquely designed with durable materials like rubber and metal to withstand force and ensure sustainability during operation. The clamp includes a channel having three sides defining open ends thereto, a trapdoor configured to create an open ended box with the three sided channel, a hinge configured to lengthwise join the trapdoor with the three sided channel, a trapdoor extension from the trapdoor, a stationary extension from the three sided channel configured to be in an opposing relation with the stationary extension and a fastener configured to put the trapdoor extension and the stationary extension in a compression.

A tool for installation and removal of flexible couplings includes a first plate having a hinge member rigidly extending from the first plate and a shaft engaging feature defined in the first plate opposite the hinge member thereof. A second plate has a hinge member rigidly extending from the second plate and a shaft engaging feature defined in the second plate opposite the hinge member thereof. The hinge members of first and second plates are hinged together for rotation of the first and second plates about a hinge axis to actuate the shaft engaging features toward and away from one another.

A clamping tool includes a strut having one end and defining a longitudinal axis. Arranged on the one end of the strut is a mount which includes a bushing that is arranged on the strut. The bushing includes recesses and a receptacle which interacts with the recesses so as to be rotatably mounted in the bushing. The bushing has an interior provided with at least one groove for receiving an O-ring which is sized to extend beyond the groove to inhibit a rotational mobility of the receptacle. A clamping device is received in the receptacle of the mount and configured to swing about an axis perpendicular to the longitudinal axis of the strut.

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 fire damper tool is provided for assisting a user opening the shutters of an HVAC fire damper after the shutters have closed. The device comprises a scissor tool that is hand-driven for separating the closed shutters without requiring the user to exert force on the doors while opening. The tool comprises a first and second set of scissor arms connected to a common pin. A threaded rod connects the proximal ends of the scissor arms along one side of the pin, while the distal ends of the scissor arms are positioned between the closed fire damper doors. A hand driven nut draws the proximal ends of the scissor arms together, causing the proximal ends thereof to spread, and in turn spread the fire damper doors. The tool is useful for confined areas where mechanical advantage is necessary for separating items, and is particularly suited for commercial HVAC applications.

Disclosed herein is a clamping apparatus that includes an upper jaw structure having a hinge end and a clamp end, a lower jaw structure having a hinge end and a clamp end, and a hinge located at the hinge ends of the upper and lower jaw structures, the hinge providing for rotation of upper jaw structure with respect to the lower jaw structure. The clamping apparatus includes an elongated element threadably attached to the first and second upper jaw structures between the hinge end and the clamp end of each of the first and second upper jaw structures, wherein rotation of the elongated element in a first direction causes the clamp end of the upper jaw structure to move closer to the clamp end of the lower jaw structure. The elongated element includes an end configured to receive a tool configured to facilitate the rotation of the elongated element.

A clamp includes a jaw assembly, and an actuator device for moving the jaw assembly between clamped and unclamped positions. The actuator device includes a handle, and a keyed shaft coupled to the handle via a spring biased releasable torque transfer mechanism.

The pinch clamp has a ratchet mechanism for selectively securing two jaw assemblies of the pinch clamp together. The ratchet mechanism includes a ratchet with a plurality of notches fixedly mounted on an end of one jaw assembly and a pawl member integrally mounted on an end of the other jaw assembly for selectively engaging in one of the notches of the ratchet. A finger release portion extends integrally from the pawl member for moving the pawl member from engagement with the ratchet.

The pinch clamp has a locking assembly that includes two members for securing the jaw assemblies of the pinch clamp in place. The two members are a stud and a nut threaded on the stud. The stud has a spherical base pivotally mounted on an end of one jaw assembly and an arcuate boss projecting from the spherical base into mating sliding relation with the arcuate recess of the jaw assembly to limit pivoting of the base to a single plane. A threaded stern extends from the spherical base and is disposed in a bifurcation of the jaw assembly.