Abstract: A locking pin tool to facilitate removal and/or installation of locking pins of a well head assembly includes an elongated shaft and a jaw assembly configured for engaging an end of a locking pin. A hammer body is mounted on the shaft and is movable along the shaft. A hammer stop provided on the shaft engages the hammer body to absorb a striking force from the hammer body as the hammer body is moved along the shaft towards the hammer stop. By moving the hammer body along the shaft, the hammer strikes the hammer stop to impart a force on the locking pin to facilitate removal or installation of the locking pin.

Abstract: A clamping device includes a fixing clamp and a positioning clamp for clamping two plate pieces. The positioning clamp includes a main body having a first abutment surface and a second abutment surface separated by an abutment angle and suitable for respectively abutting against first plate surfaces of the plate pieces. A reversing mechanism includes a reversing member rotatably disposed in the main body and having a limiting portion. The reversing member is rotatable relative to the main body between a first side and a second side, in which the limiting portion is aligned with the first abutment surface and the second abutment surface, respectively, and is suitable for abutting against the end surfaces of the plate pieces.

Abstract: A pivoting pliers jaw (18) having a design including plates for manually actuated crimping pliers (1). The pivoting pliers jaw (18) which includes a supporting plate (23) at which on both sides pliers jaw plates (25) are held. The pliers jaw plates (25) form an accommodation for a die insert or support the accommodation. According to the invention the pivoting pliers jaw (18) is L-shaped. Bolts (27, 28) for mounting the pliers jaw plates (25) to the supporting plate (23) are arranged in a way such that a connecting axis of the longitudinal axes of the bolts (27, 28) have an orientation approximately perpendicular to a supporting plane (36) for the effective crimping force.

Abstract: A ratchet clamp, comprises a first clamp arm, a second clamp arm and a ratchet mechanism provided between the first clamp arm and the second clamp arm. An elastic member is arranged between the ratchet mechanism and the second clamp arm. The ratchet mechanism includes a toothed bar, a pivoting member. The pivoting member includes a toothed piece, a housing and a lever. The self lock state of the ratchet clamp of the invention is very safe and stable, the maximum clamping force at the jaw opening portion can reach about 50 Kg, and 85% of the maximum clamping force can be maintained after the user releases the clamp arms.

Abstract: An apparatus and method for affixing soft tissue to bone is provided. The apparatus comprises first and second arms including first and second jaws on distal ends. The second arm is mated to the first arm at a hinge located between the proximal ends of the first and second arms and distal ends of the first and second arms. To enter into an engaged position, the first and second arms pivot around the hinge such that the distal ends of the first and second arms close towards one another, and the proximal ends of the first and second arms move apart from one another. The engaged position causes the first jaw on the distal end of the first arm and the second jaw on the distal end of the second arm to compress and hold soft tissue.

Abstract: A pair of locking pliers includes a first grip structure including a first jaw and an adjustment screw connected to a first handle. A second grip structure cooperates with the first grip structure. The second grip includes a second jaw pivotally connected to the first handle about a first pivot axis and a second handle pivotally connected to the second jaw about a second pivot axis. A lock mechanism is pivotally connected to the second handle about a third pivot axis. The lock mechanism abuts the adjustment screw which restrains the lock mechanism to the first handle. The second handle extends longitudinally and terminates at an end at a first length from the second pivot axis. A second length measures a distance between the second and third pivot axes. The second length is smaller than 0.19 times of the first length.

Abstract: A locking pliers preferably includes a fixed jaw, a moveable jaw, a fixed handle, a toggle link, a power link and a moveable handle. The fixed jaw is retained in a first end of the fixed handle. The moveable jaw is pivotally retained in substantially the first end of the fixed handle. An adjustment screw is retained in a second end of the fixed handle. An end of the adjustment screw engages a first end of the toggle link. The moveable handle is pivotally engaged with the toggle link. A first end of the power link is pivotally engaged with a second end of the toggle link. The power link is also slidably engaged with the moveable handle. The moveable jaw is pivotally engaged with a second end of the power link.

Abstract: A clamping device has a removable handle to move a clamp between an opened and clamped position. A receiving member is on the clamp to receive the handle. The handle has a latching member to couple with the receiving member. An actuating member is coupled with the handle to move the clamp from an opened to clamped position. A release mechanism is coupled with the clamp or handle to move the clamp from a clamped to an opened position.

Abstract: A clamping system includes a housing, a clamping lever pivotally coupled relative to the housing, a clamping arm pivotally coupled relative to the housing and the clamping lever, and an expandable link coupled to the clamping arm. The clamping lever and the clamping arm are rotatable from an open position to a closed position. A method of mounting a device on a substrate using the clamping system is also provided.

Abstract: Pliers include upper structure including an upper jaw and handle extending therefrom, and lower structure including a lower jaw and handle. The lower jaw may pivot relative to the upper jaw, and the lower handle may pivot relative to the lower jaw. An overcenter linkage operatively connects between the upper and lower structure, biasing the lower handle and jaw away from the upper handle and jaw, respectively, when in a jaw-opening position, and enabling the lower jaw and handle to be retained in a closed configuration when the linkage is in a jaw-closing position. A lock member is movable between a locking configuration preventing pivoting of the lower handle from the closed configuration and retaining the jaws in a closed position, and a release configuration enabling the lower handle to be moved away from the closed configuration, allowing the jaws to move to an open position.

Abstract: A one handed locking pliers preferably includes a fixed jaw, a movable jaw, a fixed handle, a toggle link, a power link and a movable handle. The fixed jaw is retained in a first end of the fixed handle. The movable jaw is pivotally retained in substantially the one end of the fixed handle. An adjustment screw is retained in a second end of the fixed handle. An end of the adjustment screw engages a first end of the toggle link and a first end of the power link is pivotally engaged with a second end of the toggle link. The movable handle includes a handle portion and an actuation portion, which extends from the handle portion. The movable jaw is pivotally engaged with a first end of the actuation portion and the power link is pivotally engaged with a second end of the actuation portion.

Abstract: Disclosed is a locking electrical circuit apparatus connection device capable of making a firm electrical connection where more certainty is a premium. The locking electrical connector creates electrical connections of temporary and semi-permanent nature improving the quality of connections than was heretofore possible, drastically reducing the prospect of unintentional disconnection, reducing health and safety hazards, making a new and useful improvement over electrical connectors of this kind in the past.

Abstract: A one handed quick release locking pliers preferably includes a fixed jaw, a movable jaw, a fixed handle, a toggle link, a power link and a movable handle. The fixed jaw is retained in one end of the fixed. The movable jaw is pivotally retained in the one end of the fixed handle. A toggle link release surface extends from the second end of the toggle link. A toggle link stop projection extends outward from the actuation portion. The toggle link stop projection provides an over-center stop for clamping an object. A power link release projection extends outward from the movable handle, substantially perpendicular to the toggle link stop projection. The power link release projection contacts the power link. Moving a second end of the movable handle away from the fixed handle will cause the power link release projection to push the power link and release a clamped object.

Abstract: A locking tool is provided that comprises an adjustment mechanism that can adjust the distance between the jaws, and the clamping force exerted by the jaws on a workpiece, using the same hand that grips the handles of the tool. A locking tool is also provided where the tool can be locked by moving the handles toward one another. Once locked, the pliers can be unlocked and the jaws opened by squeezing the handles toward one another in the same manner, in the same direction and using the same hand as was done to lock the pliers. As a result the pliers can be locked and unlocked using one-hand and using the same hand movement to both lock and unlock the pliers.

Abstract: A tool for crimping at least two members together and confirming that the crimp is acceptable. The tool includes a pair of opposed clamping jaws. Each of the clamping jaws has a crimping surface that contacts at least one of the members when crimping the members together. The tool also includes a pair of opposed arms that move the crimping surfaces of the opposed clamping jaws toward one another to define a crimping position and away from one another to define a release position. The tool also includes a gauge that defines a first size determining member that allows receipt of the members crimped together and a second size determining member that rejects receipt of the members crimped together.

Abstract: A strap wrench includes a strap that is a continuous loop and has notches. No portion of the strap is affixed to any portion of the wrench. The strap is placed around an object that needs to be turned such as an oil filter on an engine. A tension mechanism is then used to tighten the strap into place around the object to be turned. A ratchet mechanism engages one or more notches on the strap to prevent movement of the strap in one direction while allowing movement of the strap in the opposite direction. The combination of the notched continuous loop strap and ratchet mechanism allow the strap wrench to have a ratcheting action after the strap is tightened into place around the object to be turned.

Abstract: A pliers is adjustable between at least two distinct selectable size ranges. A movable pivot pin is held stable in a selected recess of a slot in both loaded and unloaded conditions. A lower jaw is adjustable between a small and a large size range. A multifunction spring is movably attached to a body to both firmly bias a lower jaw and handle to an open position and to retain the pin in a constant selected pivot position of the body for normally used conditions. The pliers include a familiar function and compact shape without additional bulk from the structures of the improved features. Only a simple wire form is required to provide the improvement of the invention in a preferred locking pliers embodiment.

Abstract: Pulling pliers are provided. The pulling pliers include a pair of pliers having a set of jaws; and an attaching point connected to a jaw of the pliers for attaching a slide hammer mechanism. A method for pulling using pulling pliers is provided. The method includes gripping an object with the pliers; locking the pliers in a gripping position; and actuating a slide hammer attached to the pliers.

Abstract: A device is provided for use to securely clamp a medical mechanism to a person carrier, such as a lifter, stretcher, gurney, or the like, to facilitate providing medical treatment to a person during transport of the person to a medical facility, The device has an open condition released from the person carrier and a closed condition whereupon it clamps very securely to a rail of the person carrier; with the material of the person carrier facilitating securing to the person carrier the device as well as the medical mechanism to be secured to the person carrier. The medical mechanism may, by way of example, be a relatively heavy mechanism for providing infusate to the person or a relatively heavy control for the infusate providing device. No matter what it could be severely damaging to the person on the carrier, medical personnel and transport personnel if a relatively heavy mechanism loosened from the person carrier and moved uncontrolled around the transport.

Abstract: A push button locking pliers has a plurality of macro jaw width stations for grasping a wide variety of objects. A positioning mechanism is connected to a movable jaw member having a pivot that cooperates with a jaw adjustment slot in the main handle. The positioning mechanism is released by pushing on a push button on the pivot against a spring allowing the movable jaw member to move along the slot. The user places the positioning mechanism at the jaw positioning station that creates a macro spacing between the fixed and movable jaws that best fits the object to be grasped. The push button is then released allowing the pivot to engage the rounded hole of the new positioning station. The pivot is made self centering on the rounded hole of the new positioning station by having a frustoconical section that engages the side of the hole even if the pivot is not centered on the hole.

Abstract: A jaw release mechanism for locking pliers which utilize an over-center toggle locking mechanism and wherein the normally stationary upper jaw of the pliers is pivotally fastened to the main body of the pliers. This normally stationary upper jaw is releaseably retained in a normally stationary position relative to the main body of the pliers by a thumb actuated trigger release mechanism whereby the locked pliers may be safely released with the same hand which grasps and manipulates the pliers.

Abstract: The self-adjusting locking pliers include a fixed assembly having a fixed jaw supported at one end. A moveable jaw is pivotably supported on the fixed assembly at a slidable pivot connection. The slidable pivot connection includes a pawl provided with teeth. A rack of teeth includes first and second sets of teeth offset from one another by ½ of the pitch that may each be engaged by the teeth formed on pawl. A lever is attached to the fixed assembly and a linkage transmits a force applied to the lever to the jaws and locks the jaws in the clamping position. The linkage allows the angle between the links to be preset to thereby control the clamping force applied to the work piece. The movable jaw is selectively attached to the linkage in one of two positions such that the jaw span may be adjusted without affecting the geometry of the linkage.

Abstract: A flat clamping hand tool structure includes a left clamping seat having one side with a left fixing portion facing a right fixing portion on one side of a right clamping seat. The first and second fixing members move up and down in left and right mounting slots of the left and right clamping seats by left and right swing plates which are pivotally connected with upper and lower holders. The left and right clamping seats are guided to move by guiding blocks of the upper and lower holders to slide along guiding grooves of the left and right clamping seats. Left and the right arms pivot together through a first pivot member. Left and right limit portions of the left and right swing plates mesh with each other so as to drive the left and right clamping seats to carry out a clamping motion.

Abstract: The pliers comprise a fixed assembly and a second jaw movable relative to the first jaw between an open position and a closed, locked position. A movable pivot connects the second jaw to the fixed assembly such that the movable pivot can move relative to the fixed assembly when the second jaw is in the closed, locked position and a torque is applied to the pliers. The second jaw is configured such that a resultant force on the second jaw is inside of the fixed pivot, between the fixed pivot and the movable pivot.

Abstract: A flat clamping hand tool structure includes a left clamping seat having one side with a left fixing portion facing a right fixing portion on one side of a right clamping seat. The first and second fixing members move up and down in left and right mounting slots of the left and right clamping seats by left and right swing plates which are pivotally connected with upper and lower holders. The left and right clamping seats are guided to move by guiding blocks of the upper and lower holders to slide along guiding grooves of the left and right clamping seats. Left and the right arms pivot together through a first pivot member. Left and right limit portions of the left and right swing plates mesh with each other so as to drive the left and right clamping seats to carry out a clamping motion.

Abstract: A PEX crimping tool includes four rigid links pivotally coupled together in a modified four-bar linkage arrangement. The first link has a first jaw with semicircular work face, a first handle and an elongated slot between the jaw and handle. The second link is pivotally connected with the first link at a first pivot and includes a second jaw with semicircular work face. The third link is pivotally connected with the second link at a second pivot and includes a second handle remote from the second pivot. The fourth link has a first end pivotally connected to the third link at a third pivot and includes a second end connected to the first rigid link so as to swing and move with respect to the first link about a fourth pivot movable along the elongated slot. The tools are designed to crimp ASTM F 1807 rings.

Abstract: An improved locking wrench is provided. The improved locking wrench includes a stationary upper handle which includes a fixed upper jaw, and a lower jaw pivotally connected to said upper handle so that said lower jaw is in opposition to and pivotally movable towards and away from said upper jaw. A lower operating handle having a distal end pivotally is connected to said lower jaw and movable between closed and opened positions which responsively pivotally moves said lower jaw towards and away from said upper jaw. A toggle lever is pivotally coupled at one end to said lower operating handle and has an opposite end coupled operatively to said upper handle.

Abstract: One embodiment of the invention relates to a locking pliers. The locking pliers include a pair of handles and a pair of interconnected jaws coupled to the handles. The jaws are movable between a retracted position within the handles and an extended position extending from the handles. The jaws are slidably coupled to the handles and configured to slide between the retracted position and the extended position without opening the handles. When the jaws are in the extended position, the jaws have an unclamped configuration in which the jaws are adjustable by a user to permit the jaws to lock onto objects of various sizes and clamped configuration in which the jaws are releasably locked onto an object.

Abstract: A lockable pliers comprises a fixed assembly comprising a first handle supporting a first jaw. A second jaw is movable relative to the first jaw between an open position and a closed, locked position. A second handle is movable relative to the first handle and is connected to the second jaw at a fixed pivot. A toggle-link locking mechanism locks the second jaw in the closed, locked position. A movable pivot connects the second jaw to the fixed assembly such that the second jaw can move relative to the fixed assembly when the second jaw is in the closed, locked position and a torque is applied to the pliers.

Abstract: A hand tool having first and second plier units attached to one another where a jaw region is operatively configured to have a work piece to be placed therein and a handle region is configured to be used by the user of the tool to grasp the work piece. A tension member is provided to be positioned past a dead point axis so as to apply a clamping force upon the jaw member and the hand tool maintains a grip upon the work piece without continuous interaction with the user of the tool.

Abstract: The self-adjusting locking pliers include a fixed assembly having a fixed jaw supported at one end. A moveable jaw is pivotably supported on the fixed assembly at a slidable pivot connection. The slidable pivot connection includes a pawl provided with teeth. A rack of teeth includes first and second sets of teeth offset from one another by ½ of the pitch that may each be engaged by the teeth formed on pawl. A lever is attached to the fixed assembly and a linkage transmits a force applied to the lever to the jaws and locks the jaws in the clamping position. The linkage allows the angle between the links to be preset to thereby control the clamping force applied to the work piece. The movable jaw is selectively attached to the linkage in one of two positions such that the jaw span may be adjusted without affecting the geometry of the linkage.

Abstract: A pair of locking pliers having an adjusting device that utilizes a cam assembly. The pliers, preferably, include a trolley disposed in a first handle member that defines a channel. The trolley is structured to be coupled to a link assembly wherein the position of the link assembly relative to the distal end of the first handle member affects the spacing of the pliers' jaws. The cam assembly is, preferably, a planar disk-like body having a radially extending handle and, preferably, a plurality of flats about the circumference. The cam assembly is disposed, preferably, in the plane defined by the first handle member and the second handle assembly. The cam is coupled to the first handle member at the distal end of the handle portion and its' axis extends generally perpendicular to the plane defined by the first handle member and the second handle assembly.

Abstract: A push-button locking pliers has a plurality of macro jaw width stations for grasping a wide variety of objects. A positioning mechanism is connected to a movable jaw member and cooperates with a jaw adjustment slot in the main handle. The positioning mechanism is released by pushing on a push button allowing, it to move along the slot. The user places the positioning mechanism at the jaw positioning station that creates a macro spacing between the fixed and movable jaws that best fits the object to be grasped. An adjustment screw adjusts the micro spacing between the jaws to cause the pliers to lock on the object using an over-center mechanism when the handles are squeezed.

Abstract: The self-adjusting locking pliers include a fixed assembly having a fixed jaw supported at one end. A moveable jaw is pivotably supported on the fixed assembly at a slidable pivot connection. The slidable pivot connection includes a pawl provided with teeth. A rack of teeth includes first and second sets of teeth offset from one another by 1/2 of the pitch that may each be engaged by the teeth formed on pawl. A lever is attached to the fixed assembly and a linkage transmits a force applied to the lever to the jaws and locks the jaws in the clamping position. The linkage allows the angle between the links to be preset to thereby control the clamping force applied to the work piece. The movable jaw is selectively attached to the linkage in one two positions such that the jaw span may be adjusted without affecting the geometry of the linkage.

Abstract: An automatically adjustable locking pliers or tool includes a jaw fixed to a first handle and a jaw that pivots about the first handle. The pivoting jaw is connected to a lower tightening handle. A lever connects the tightening handle and first handle. A self-adjusting sizing and locking mechanism includes a thumb jaw sizing piece located near the jaws and movable to open the jaws so that they can be sized around a workpiece. When the thumb jaw sizing piece is released, the jaws automatically size and clamp lightly around the workpiece. The locking mechanism uses balls between a locking rod and a tapered surface. Locking occurs when the balls wedge between the rod and the tapered surface. A release cylinder is connected to a release paddle movable to unlock the mechanism. The sizing piece and locking mechanism are operable to automatically size and lock the pliers or tool.

Abstract: A hand tool for gripping a workpiece can include a first lever having a first handle and a first jaw and a second lever having a second handle and a second jaw. A locking assembly can include a pivoting lever, a locking pin and a blocking member. The pivoting lever can be pivotally coupled to the second lever. The blocking member can be coupled to the first lever. The pivoting lever can be movable between an unlocked position, wherein the first and second jaw move relative to each other and a locked position, wherein the first and second jaws are fixed relative to each other. In the locked position, the locking pin can be wedged against a contact surface of the blocking member precluding relative motion of the blocking member and the pivoting lever.

Abstract: A fish handling pliers includes two levers pivotally coupled together, and each has a jaw member at one end and a handle member at the other end, a protrusion is extended from one of the levers and has a lock notch, the other lever includes a channel for pivotally receiving a latch device which includes a catch for engaging with the lock notch of the other lever and for latching the levers together, and a spring biasing device for biasing the catch of the latch device to engage with the lock notch of the protrusion, or for disengaging the catch of the latch device from the protrusion, and for allowing the user to easily handle or operate the fish handling pliers.

Abstract: The invention relates to pliers for changing the distance of two activation surfaces of a connection or fitting for conduits. The change of the distance correlates with an elastic or plastic deformation of at least one component of the fitting including a radial crimping process. The inventive pliers comprise two hand levers linked by a transfer mechanism with two spreading jaws. According to the invention, a closing movement of the hand levers results in a spreading movement of the spreading jaws. Such spreading movement of the spreading jaws is used for plastically deforming at least one of the components of the connection by a radial crimping process.

Abstract: A hand tool comprising first and second jaw members and first and second handle members, the first handle and both jaw members being cooperatively connected by a force multiplying linkage system. A force applied to the first handle drives the linkage system to close the jaws to crimp or cut a work piece. In one embodiment of the invention, a link in the linkage system has a first end movable between first and second positions relative to its first end pivot pin wherein the first and second jaw members close a first distance when the link first end is in the first position and close a second distance when the link first end is in the second position. Other embodiments comprise other step-wise changes in distance between force-bearing pivot locations in the linkage system to close the jaws progressive distances with successive closures of the first and second handles.

Abstract: A restricting member with an engaging structure for a pair of locking pliers comprises a first pivoting portion, a second pivoting portion and the engaging structure. The engaging structure extends out of an upper part of the restricting member, so that it can be positioned in a groove of a side handle, and makes a supporting portion of a linking member press against the groove of the side handle. The restricting member not only saves space and cost for it needs no additional subassemblies, but also makes the assembling work more convenient.

Abstract: The present invention is directed to an improved hand tool for using one hand to grasp a workpiece between a first and a second jaw of the hand tool and adjust the force applied to the workpiece. The hand tool includes a first arm and a second arm, the second arm operably linked to the first arm so as to cause relative motion of the first and second jaws upon motion of the arms. The hand tool further includes a control arm having a first end pivotably linked to the first arm and a second end pivotably linked to the second arm at a moveable pivot location. Movement of a force adjustor located on the second arm in a first direction moves the moveable pivot location so as to increase the level of force required on the second arm to move the control arm into an overcenter lock position.

Abstract: Pliers, with two arms that are joined together via an articulation pin. One of the arms has a protuberance with a lateral channel that extends via one of the orifices, a pusher being located in the channel and having an inner channel that accommodates a spring that acts between the pusher and the arm. The articulation pin is joined by means of screwing to the pusher in the region of the lateral channel, a toothed claw being arranged coaxially therebetween with mechanical continuity. The pusher is continued as an extension located on the walls of the other orifice in the work position. Applicable to hand tools.

Abstract: A hand tool having first and second plier units attached to one another where a jaw region is operatively configured to have a work piece to be placed therein and a handle region is configured to be used by the user of the tool to grasp the work piece. A tension member is provided to be positioned past a dead point axis so as to apply a clamping force upon the jaw member and the hand tool maintains a grip upon the work piece without continuous interaction with the user of the tool.

Abstract: A self-adjusting locking vise grip includes a stationary handle, a stationary jaw, a pivoting jaw, a pivoting handle, a first link, a second link and a rail assembly. The stationary jaw is retained in one end of the stationary handle. The pivoting jaw is pivotally retained adjacent the stationary jaw. One end of the pivoting handle is pivotally retained on the pivoting jaw. The first link is pivotally retained by the pivoting handle. The second link is pivotally retained by the first link. The rail assembly includes a slide carriage, an adjustment screw and a rail member. The adjustment screw is threaded into the slide carriage. The slide carriage is slidably retained by the rail tube. The other end of the second link is pivotally retained by the slide carriage. The rail member is retained in the other end of the stationary handle.

Abstract: A toggle locking tool is provided with an adjustment screw assembly comprising a force-enhancing shank that enables the holding force of the tool to be multiplied manifold. The adjustment screw assembly comprises an adjustment screw conventionally adapted to be fed into and to engage a threaded bore in the outer end of the fixed handle of the tool; however said adjustment screw itself comprises an internal, fine-threaded bore that extends through the length of said screw, and that receives a threaded force-enhancing shank having a head portion adapted for turning manually or with a turning tool. An end portion of said shank extends beyond the adjustment screw to form the bearing surface which, in a conventional toggle locking tool, is provided by the tip of the adjustment screw. Rotation of the adjustment screw provides rapid, low-force locking adjustment of the tool, and subsequent torquing of the force-enhancing shank results in the application of a multiplied locking force to the jaws of the tool.

Abstract: An improved locking clamp device having independently extendable jaws and interchangeable quick release clamping members, said clamping members configured in unlimited variations of shape, texture, and hardness and optionally being moveable relative to the jaws of the device. The improvements allow increased flexibility of the device over traditionally configured locking clamps with regard to use of the device with difficult work pieces and environments. The interchangeable clamping members allow a single device to be used for multiple applications, thereby making the invention a low cost and convenient alternative to multiple special purpose tools, as well as permitting quick and inexpensive replacement of wear elements.

Abstract: A locking pliers tool with an improved dual action driver handle comprising two intersecting handles and interacting jaws. When the user grips the handle forward the resultant force produces a locking action. Conversely, when a rearward gripping force is initiated, the tool releases its grip on the object. A limited amount of energy on the inventive handle produces free movement of the handle and gripping mechanism to lock or release. The system operates with a handle and stationary jaw in conjunction with a second pivotally secured jaw and internal adjustment bolt. A second lever handle rests against the adjustment bolt. An over center toggle link connects the second lever handle to the pivotally secured second jaw. A tension spring interconnects the first handle and the pivotally secured second jaw.

Abstract: An improved clamp device having interchangeable quick release clamping members, said clamping members being moveable relative to the jaws of the device and being magnetic so as to retain the clamp device to a ferro-metallic work piece. The improvements allow increased flexibility of the device over traditionally configured clamps with regard to use of the device with difficult work pieces and environments. The interchangeable clamping members allow a single device to be used for multiple applications, thereby making the invention a low cost and convenient alternative to multiple special purpose tools, as well as permitting quick and inexpensive replacement of wear elements.

Abstract: Improved locking pliers are provided with a member having a threaded aperture welded, attached, or formed onto the handle of the pliers. The threaded aperture is adapted to receive a threaded rod or member for the application of pulling and pushing forces and other controlled movement or mobilization of the pliers. The axis of the threaded aperture is parallel to the axis of the adjustment knob of the pliers.

Abstract: The self-adjusting locking pliers include a fixed assembly having a fixed jaw supported at one end. A moveable jaw is pivotably supported on the fixed assembly at a slidable pivot connection. The slidable pivot connection includes a pawl provided with teeth. A rack of teeth includes first and second sets of teeth offset from one another by ½ of the pitch that may each be engaged by the teeth formed on pawl. A lever is attached to the fixed assembly and a linkage transmits a force applied to the lever to the jaws and locks the jaws in the clamping position. The linkage allows the angle between the links to be preset to thereby control the clamping force applied to the work piece. The movable jaw is selectively attached to the linkage in one of two positions such that the jaw span may be adjusted without affecting the geometry of the linkage.