Abstract: A locking mechanism for enabling a fishing plier to remain a closed state includes a fixed plier handle and a movable plier handle. The middle portion of the fixed plier handle is integrally provided with a first rotating part, and the middle portion of the movable plier handle is integrally provided with a second rotating part. The first rotating part and the second rotating part are rotatably connected through a fixed shaft assembly. A knob is disposed on the outer side of the first rotating part. Straight slide grooves are disposed between the second rotating part and the first rotating part. The inner end surface of the knob is provided with a control groove. A locking pin is inserted between the straight slide groove on the second rotating part, the straight slide groove on the first rotating part, and the control groove of the knob.

Abstract: A multi-functional hand tool that has releasable tool attachments that affix to a pair of articulating handles that provide for gripping, rotating, twisting, cutting, pounding, and performing other functions commonly done using a number of different tools. The multi-functional hand tool having a locking mechanism that provides for manipulating a workpiece, without damage or marring of the workpiece.

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: Pliers for C-shaped lock rings include a holding unit and a clamping unit. The holding unit is composed of two handles and a control portion. The clamping unit comprises two identical clamping members and a positioning disk. When the control portion is released to engage with the positioning slot to lock the handle; when the control portion is pushed to disengage with the positioning slot, the handle rotate around the center shaft corresponding to the rotations of the clamping unit, such that the clamping members can be open or closed.

Abstract: A hand tool, pliers and a lock button assembly for a hand tool. The hand tool includes a first jaw assembly including a first rail, a second jaw assembly including a second rail shorter than the first rail, a pivot member coupling the jaw assemblies for pivoting movement between an open position and a closed position. The lock button assembly includes a first lock button member defining a second rail groove operable to selectively receive the second rail; and a second lock button member separate from and connectable to the first lock button member, the lock button members, when connected, cooperating to define a first rail groove receiving the first rail. The lock button assembly is operable between a locked position, engaging the first and second rails to releasably hold the jaw assemblies in the closed position, and an unlocked position, in which the second rail is disengaged.

Abstract: A hand tool for assembling and disassembling a plurality of workpieces is provided. The hand tool comprises a pair of handle members, a pair of intermediate members pivotally coupled to the pair of handle members, a pair of jaw members pivotally coupled to the pair of intermediate members, a spring member mounted between the pair of handle members, and a locking mechanism configured on the pair of handle members. Accordingly, upon applying a grasping force to the pair of handle members, the spring member is compressed and the pair of intermediate members converge towards each other thereby allowing the pair of jaw members to grasp the at least a portion of the workpiece therebetween for assembling and disassembling the plurality of workpieces. Further, upon grasping the at least a portion of the workpiece, the pair of handle members are held in a locked state by the locking mechanism.

Abstract: A plier type of device can quickly and humanely kills wounded fowl. The device may be applied to either side of the temple of the fowl and a quick squeeze may crush the temple and quickly kill the wounded fowl. The device may include a handle end that may be squeezed together to cause a head gripper end to close. The head gripper end may include points, typically cone shaped, that may be pointed toward each other and may approach each other as the head gripper end closes.

Abstract: A locking pliers with a punch for purposes of arresting a fall by a worker from a structure is disclosed. The locking pliers have at least two opposing gripping surfaces. One surface has a punch and the opposing surface has a slot for receiving the punch. The locking pliers are affixed to a suitable support structure, such as flashing on a roof. The punch creates a hole in the flashing securing the locking pliers to the flashing. The locking pliers include means for attachment of a lanyard. The lanyard is attached to a worker to limit the distance the worker can fall in the event of an accident.

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 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 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 locking mechanism locks the jaws in the closed, locked position. A movable gripping member can move relative to the jaws when the jaws are in the closed, locked position and a torque is applied to the pliers.

Abstract: A hand operated gripping tool comprises a first jaw unit having a workpiece engaging portion, a second jaw unit having a workpiece engaging portion and being movable relative to the first jaw unit such that a variable size workpiece receiving space is defined between the workpiece engaging portions and a handle for applying a force to the second jaw unit. The second jaw unit is engagable with a reaction surface such that, in use, in response to a force applied by the handle, the workpiece engaging portion is forced against a workpiece received in the workpiece receiving space. An elongate extension portion extends from the workpiece engaging portion. The lever arm is connected with the elongate extension portion and the extension portion has a bend promoting portion disposed between the workpiece engaging portion and the lever arm connection that is configured to promote bending of the extension portion.

Abstract: A tool for creating tension of a chain on a cycle according to one embodiment comprises a wheel engaging portion; a frame engaging portion positioned opposite the wheel engaging portion; and at least one handle operatively coupled to the wheel engaging portion and the frame engaging portion such that application of force on the at least one handle is operative to bias the wheel engaging portion and frame engaging portion away from each other.

Abstract: The tool reduces or stops the flow of liquid or gas through a conduit and includes a crimping section, comprised of a first and second crimping member pivotally engaged with each other, and a handle section, comprised of a first and second handle member pivotally connected to each other. Each crimping member has a blunt section extending partially along an edge thereof. The first and second handle members are connected to the first and second crimping members. The conduit is crimped by applying a force to the handle members causing the handle members and the crimping members to pivot in a direction opposite each other so that the blunt sections of crimping members crimp a conduit placed therebetween thereby reducing or stopping the flow of the liquid or gas flowing through the conduit. The tool may also hold objects and be locked via separate locking mechanisms.

Abstract: A hand tool comprising a first member having a handle with fixed jaw, a jaw face and a first pivot portion, the first pivot portion defining a first pivot hole having a center positioned at a distance from the fixed jaw face second end within the range of about 10 to 15 millimeters; a second member having a slot, a handle, a second pivot portion, a recess, and a worm gear rotatably received in the recess; a pivot pin pivotally connecting the first and second pivot holes and having a diameter within the range of about 6 to 10 millimeters; a sliding jaw having a face, and a gear rack slidably received by the second member slot and engaging the worm gear; and a detent selectively movable to prevent the pivotal movement of the first and second members with respect to each other.

Abstract: Locking or expanding pliers (1) having two plier arms (4, 5) which arc joined to each other in the manner of a scissor-type joint. The arms forming grip sections (6, 7) on one end and clamping sections (12, 13) on the other end and being able to be locked in various clamping positions, whereby the clamping results from the elastic deformation of at least one of the two plier arms (4, 5) occurring when the plier arms (4, 5) are placed in a clamping position. A spring element (F) is arranged in the active area between the clamping section and the grip section in order to achieve improved proportioning of the clamping force, whereby both grip sections (6, 7) can be disposed on top of each other and placed in another locking position (19, 20), when both clamping sections (12, 13) are maintained in a distanced position (a), in order to increase clamping power.

Abstract: A compact clamp design includes an upper and a lower arm fitted with gripping pads at respective front ends and hinged together at respective back ends. The rearward positioned hinge enables the clamp to open very wide since the hinge and the gripping pads are relatively very far apart. An operating handle integrated as part of an upper arm. When the clamp is closed there are no protruding members. The clamp is very compact and minimally obtrusive.

Abstract: A clamp device is disclosed having a first member having a handle portion and a jaw portion. A second member has a handle portion and a jaw portion. The handle portion and jaw portion of the second member define a notch extending from an inner surface of the handle portion of the second member at least partially into the jaw portion of the second member, the second member being formed as a single piece. A pivot is pivotally coupling the first member and the second member intermediate their respective handle portion and jaw portion for opposed pivotal motion. An arcuate clamp bar has a first end coupled to the first member and a second end, an arc of the arcuate clamp bar being concentric with the pivot. A brake lever has an end pivotally coupled to the second member at the notch. The end contacts the jaw portion of the second member. The brake lever has an aperture with the arcuate clamp bar extending therethrough.

Abstract: A pair of pliers for disassembling a pipe-fastening clamp has two control members respectively having through holes. A control device is connected with the two control members and has two control tubular lines each inserted with a steel wire having one end inserted through the through hole of each control member. Each tubular line has one end provided with a positioning block and the other end fixed with a push member and the other end combined with two clamping blocks facing each other. The steel wire has one end fitted with a fixing member. Thus, the two clamping blocks are controlled to expand open the pipe fastening clamp for facilitating disassembling pipes.

Abstract: A hand tool, comprising: first and second members, each having a jaw at one end and a handle at an opposite end, the members pivotable between an open position and a closed position; and a retainer for selectively maintaining the members in the closed position. The hand tool could be a plier tool with a pivot pin connecting the members and enabling the members to pivot between the open and closed positions. A method of securing a clamp to an object, comprising the steps of: providing an object; providing a flexible clamp; placing the clamp on the object; actuating the hand tool to draw ends of the clamp towards each other to reduce a gap therebetween; actuating the retainer on the hand tool to keep the reduced gap; providing a fastener; securing the ends together with the fastener; and releasing the tool from the clamp.

Abstract: An extractor tool for coupling fastened to pipes comprises an actuation device, a holding device, and a cable having one end secured to the holding device and the other end slidably secured to the actuation device. In use, engage the holding device with the coupling and pivot the first actuation device to enlarge the diameter of the coupling, thereby detaching the coupling from the pipes through the cable.

Abstract: A spring chuck having a locking mechanism provided between two handles of the spring chuck. The locking mechanism includes a sleeve connected at an end to one handle of the chuck, a shaft having an end connected to another handle of the chuck and another end movably located in the sleeve via a lower open end thereof, a brake handle having a ring-shaped head put around the shaft and pivotally connected the lower open end of the sleeve, and a compression spring mounted around the shaft between the sleeve and the ring-shaped head of the brake. The compression spring normally pushes the ring-shaped head to pivotally turn away from the sleeve to frictionally contact with the shaft, preventing the shaft from moving in the sleeve and thereby lock the handles of the chuck to a fixed position. Pushing the brake handle toward the sleeve causes the ring-shaped head to align with the sleeve without frictionally contacting with the shaft and therefore allows the handles of the chuck to move freely.

Abstract: An improved set of adjustable locking pliers having two pivotally mounted jaws. A lock lever is pivotally mounted to one handle member and slidably retained in the longitudinal grooved portion of the opposite handle, and an adjustment screw threaded longitudinally into the grooved handle member bears upon the sliding end of the lever. Handle members are pivotally connected to retaining plates, said plates having a pin projecting between them with the jaws pivotally mounted and laterally disposed thereon. The gripping surfaces of the jaws interlock above the pin and meet flush in the locked position. The handle member having the adjustment screw has a curved end which spreads the bottom of the jaws apart in the locked position, thereby forcing the gripping surfaces together.

Abstract: An adjustable wrench has jaws (1, 2) which automatically lock up when a predetermined force is applied to the handgrips (2, 3). The jaws (1 and 2) are closed by forcing together hand grips (3 and 6) which holds pivot F against rubber stop (8) mounted in the housing (9), which in turn is mounted on brace arm (7); pivot D is moved towards brace (7), thus straightening line CDE and rotating jaw (2) and pivot C anti-clockwise about pivot B. When the jaws close on to a workpiece W, resistance is met and further movement of D towards arm (7) is arrested in favor of the over-center linkage arms (4 and 5) whereupon eccentric cam (11) locks rod (10) against anvil (12) thus holding jaw (2). The over-center lock on the hand grip (6) locks and is prevented from going further than just over-center by a stop G which bears on to the inside of the hand grip.

Abstract: Improved locking wrenches are provided with adjustment screws having a head portion and a flange extension associated with the lower handle. A locking element is provided which serves to lockably engage a restraining element associated with one of the adjustment screw and the flange extension. In this manner, inadvertent release of the clamping force exerted between jaws of the wrench may be prevented since the lower handle is restrained from moving into its opened stated relative to the upper handle.

Abstract: Improved locking wrenches are provided with adjustment screws having a head portion which defines at least one opening registerable with an aperture defined in an extension member rearwardly extending from the lower handle of the wrench. In this manner, a restraining element may be placed through the registered opening/aperture to positionally restrain (immobilize) the upper and lower wrench handles relative to one another. The head of the adjustment screw and/or the extension member according to the present invention may be embodied in a number of alternative arrangements to provide the necessary cooperative relationship as between the opening and aperture respectively defined thereby.

Abstract: A gripping tool, acting as both a pair of pliers and a wrench, self locks and self releases upon application or removal of clamping torque on the handles of the tool, respectively. The locking and releasing mechanism is based on reversible wedging action.

Abstract: The locking tool of this invention comprises three or more pieces. All three pieces are connected with an axle pin. A first handle piece has one or more arc-like slots which criss-cross with one or more coextensive, vertically-disposed slots in the second handle. A third piece has one or more arc-like slots exactly as the first piece and is normally held in direct alignment with the first piece. A locking pin is movably positioned in and through the three slots. When the first and third pieces are held in alignment, the pin moves freely through the slot allowing the second piece to move freely against the first piece. When the third piece is rotated to misalign the slots from the first piece, the locking pin is pushed to a tilted position against the walls of the slots to lock both the jaws of the tool in position, and the pins themselves, in both a radial and rotational manner.

Abstract: The locking tool of this invention comprises three or more pieces. All three pieces are connected together with an axle pin. A first handle piece has one or more arc-like slots which criss-cross with one or more slots in a second handle piece. A third piece called a jaw piece has a vertical slot that is coextensive with the other two slots. A locking pin is movably positioned in and through the three slots. When pressure is exerted upon the two handle pieces, this locking pin is tilted against the walls of the slots to lock the jaws of the tool in position. When pressure is exerted on the handles, the slots can leverage the pin both rotationally and radially. Resistance to the pin movement either radial or rotational causes the pin to be tilted against the walls of the slot in such positions as to preclude natural reversed movement of the pin as in a one-way valve.

Abstract: A wire stripper comprising a pair of symmetric arms pivotally connected together, a pair of supporting pieces respectively secured to the arms, a stationary cutting member being secured to one of the supporting pieces, a pivotal cutting member pivotally attached thereto cooperating with the stationary cutting member to be served as a stripper, a stationary clamping member being secured to the other supporting piece, a pivotal clamping member pivotally connected thereto associated with the stationary clamping member to be served as a clamp. In use, and electrical wire can be fixedly clamped by the clamp and the coating of the electric wire can be simultaneously stripper off by the stripping. Thus, this invention can complete the stripping action in one single operation.