Abstract: A spanner comprises a box end that has an inner periphery consisting of a number of wall faces to define a first polygonal receiving space. Each wall face includes a groove defined therein. The grooves of the wall faces together define a second polygonal receiving space. At least one of the grooves includes a closed first end and an open second end.

Abstract: An oil filter wrench includes a flexible stainless steel band having a pattern of sputtered alloy material coating at least part of the inside surface of the band to enhance the gripping ability of the oil filter wrench as the band is tightened above the outside surface of a cylindrical canister during removal or installation of the oil filter canister.

Abstract: A wrench includes a handle and an open-end with two jaws and each jaw has a driving surface. Each driving surface has a contacting area and two yielding areas. The contacting area is located between the two yielding areas and includes a contact portion and two notches. The contact portion is located between the two notches, and two extension areas each are connected between the yielding area and the notch corresponding thereto. A corner is formed at a joint area of the contact portion and an inside of the notch so as to bite a rounded fastener head. The contact portions are matched with straight sides of a normal fastener head.

Abstract: A gripper is disclosed for gripping a tubular, e.g. to facilitate rotation of the tubular, the gripper including a body, the body having conformable material having an initial body shape, and the conformable material able to change the initial body shape upon contacting a tubular with the body, the tubular having a tubular shape, the conformable material able to conform to the tubular shape of the tubular to facilitate gripping of the tubular with the gripper. This abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 C.F.R. 1.72(b).

Abstract: A gripper is disclosed for gripping a tubular, e.g. to facilitate rotation of the tubular, the gripper including a body, the body having conformable material having an initial body shape, and the conformable material able to change the initial body shape upon contacting a tubular with the body, the tubular having a tubular shape, the conformable material able to conform to the tubular shape of the tubular to facilitate gripping of the tubular with the gripper. This abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 C.F.R. 1.72(b).

Abstract: An adjustable wrench for gripping hexagonal and other shaped heads includes two slightly non-parallel jaw faces, wherein one face is smoother than the other. The angle between the two jaw faces is extremely shallow to create a “snap-action” geometry. Combining that geometry with jaw faces of unequal roughness can result in a desirable binding action that causes the wrench to tightly grip the head. In some cases, the wrench will continue clinging to the head even after the user releases the handle of the wrench.

Abstract: A wrench adapted to engage a workpiece to drive the workpiece rotationally. In one embodiment, the wrench comprises a handle, a head, a first jaw, a track, a second jaw, and a biasing member. The first jaw is disposed on the head such that the position of the first jaw is adjustable toward and away from the jaw support along a first path, thereby enabling the wrench to be adapted for engagement with workpieces of different sizes. The second jaw is slidably seated in the track formed on the jaw support to slide along a second path between a first position and a second position. The second jaw further cooperates with the first jaw to grasp a workpiece therebetween and drive the workpiece in a first rotational direction if the head is driven in the first rotational direction by the handle.

Abstract: A tool for gripping, clamping or holding an object, wherein the tool has a handle portion, a linkage portion and a working portion, and wherein the working portion includes two workpiece contacting surfaces, at least one of the surfaces shaped to generally conform to at least a portion of the outer surface of a workpiece to be clamped, gripped or held. In some embodiments, at least one of the workpiece contacting surfaces is adapted to provide a treatment to a workpiece being clamped, gripped or held.

Abstract: A pair of pliers include a shank, a fixed jaw locked onto the shank, and a movable jaw pivotally mounted on the shank and movable relative to the fixed jaw. Thus, the first contact point of the locking teeth of the fixed jaw and the second contact point of the first engaging teeth of the first toothed face of the movable jaw have a larger friction with a workpiece by a special angle design of the fixed jaw and the movable jaw to enhance the clamping force of the fixed jaw and the movable jaw on the workpiece, so that the workpiece is clamped by the fixed jaw and the movable jaw exactly and closely to prevent the workpiece from being slipped from the fixed jaw and the movable jaw during operation of the pliers.

Abstract: An interlocking toy formed from construction units, where certain of the construction units include assembly members, preferably in a matrix, that are capable of interlocking with assembly members, preferably in a matching matrix, from certain other construction units. The assembly members may be in the form of notches, slots, tabs, apertures (preferably square apertures or circular apertures), oblong recesses, and tapered oblong recesses, among other similar and other geometric and non-geometric constructs. Similarly, the construction units may be formed to any geometric or non-geometric configuration. An exemplary construction unit may include assembly members in the form of notches, square apertures, and circular apertures.

Abstract: A wrench includes a handle and an open-end with two jaws and each jaw has a driving surface. Each driving surface has a contacting area and two yielding areas. The contacting area is located between the two yielding areas and includes a contact portion and two notches. The contact portion is located between the two notches, and two extension areas each are connected between the yielding area and the notch corresponding thereto. A corner is formed at a joint area of the contact portion and an inside of the notch so as to bite a rounded fastener head. The contact portions are matched with straight sides of a normal fastener head.

Abstract: A monkey wrench includes a handle, a head, stationary jaw, a movable jaw and a jaw-moving element. The head is formed at an end of the handle and made with a side, a groove in the side and an opening in communication with the groove. The stationary jaw is formed on the head and made with a first nut-contacting face, a second nut-contacting face next to the first nut-contacting face, a bulge on the first nut-contacting face and a recess next to the bulge. The movable jaw is movably disposed in the groove and formed with a nut-contacting face and a bulge on the nut-contacting face thereof. The jaw-moving element is disposed in the opening and engaged with the movable jaw so that the jaw-moving element is operable to move the movable jaw relative to the stationary jaw.

Abstract: A symmetrical open-end wrench having rear side corners adjacent open ends of the throat of the wrench and opposing jaws defining an opening for receiving a fastener, the jaws having parallel planar section, and continuously diverging surfaces with fastener-engaging irregularities merging with the respective rear side corners in a smooth transition.

Abstract: A wrench includes a handle and an open-end with two jaws and each jaw has a driving surface. Each driving surface has a contacting area and two yielding areas. The contacting area is located between the two yielding areas and includes a contact portion and two notches. The contact portion is located between the two notches, and two extension areas each are connected between the yielding area and the notch corresponding thereto. A corner is formed at a joint area of the contact portion and an inside of the notch so as to bite a rounded fastener head. The contact portions are matched with straight sides of a normal fastener head.

Abstract: An improved hand tool for use with threaded rods, comprising a pair of partially threaded jaws whereby said partial threads of each jaw mate with the thread of the threaded rod, such that the jaws may be clamped onto either side of a threaded rod by a clamping device and simultaneously rotated, causing the threaded rod to rotate along with the jaws without damage to the thread of the threaded rod.

Abstract: A spanner comprises a box end that has an inner periphery consisting of a number of wall faces to define a first polygonal receiving space. Each wall face includes a groove defined therein. The grooves of the wall faces together define a second polygonal receiving space. At least one of the grooves includes a closed first end and an open second end.

Abstract: Open-end symmetrical wrenches retain fasteners fully seated in the jaws of the wrench. The jaws have fastener-engaging surfaces with substantially planar and parallel sections that extend past the front side corners of the fastener when it is fully seated in the wrench and serrated diverging sections extending outwardly and rearwardly from these planar sections. The serrated diverging section may be arcuate or a slightly inclined. Both types of diverging section are designed to reduce slipping and are connected to rear corners of the fastener-engaging cavity that are designed and positioned to avoid contact with the rear side corners of the fastener. Arcuate rear side corners of the wrench cavity avoid contact with the rear side corners of the fastener and avoid stress concentration points. The throat that connects the corners has two gentle curves or flat surfaces leading to a central arc. This modified “U” design provides more metal in the throat of the wrench, which stiffens the jaws.

Abstract: An adjustable spanner comprises a handle; one end of the handle having an enlarged head; an upper side of the head being formed with a sliding surface; a fixing jaw extended from one end of the head; the fixing jaw having a fixing surface; a fixing protrusion being formed at a lower side of the fixing surface; a movable jaw installed in the sliding trench; the movable jaw having a movable surface; a directional control element being installed in the receiving groove and engaged to the movable jaw; a movable protrusion being formed at a lower side of the movable surface; a line being defined from a top end of the fixing surface to the sliding surface; a line X being defined to be an axial line of the sliding trench, the angel ? between the line Y and the line X is between 65°˜85°, preferably is 74°.

Abstract: The present application is directed to adjustable wrenches. In one embodiment, the open-ended wrench includes a head with a opening sized to receive workpieces. One or more shims are attached in an adjustable manner within the opening to alter the width of the wrench.

Abstract: A fitting hole of a hand tool such as a socket or a wrench for fitting on and wrenching a screwing member. The inner wall of the fitting hole is formed with twelve teeth at equal intervals. The teeth define therebetween twelve recesses at equal intervals. Each tooth has a tip formed with a plane. The plane of the tooth and a tangent of the tooth contain an angle of 15 degrees. A first end of the plane is closer to a center of the fitting hole. A second end of the plane of the tooth is farther from the center of the fitting hole. An arced tooth section is formed on one side of the tooth. The fitting hole can be fitted on various screwing members to wrench the same, and is applicable to both normal and worn screwing members.

Abstract: An open-ended spin tool comprising a first z-shaped structure, a second z-shaped structure, the second z-shaped structure being pivotably associated with the first z-shaped structure, a first gripping portion cavity, a first actuatable roller and a second actuatable roller, a rubber belt disposed parametrically around the first actuatable roller and the second actuatable roller, wherein the rubber belt is deformable to at least partially conform to a rotatable element, a motor to actuate rotation of the first actuatable roller and the second actuatable roller, at least one trigger roller, and an electric association between the at least one trigger roller and the motor, wherein depression of the at least one trigger roller triggers the motor to actuate rotation of the first actuatable roller and the second actuatable roller.

Abstract: A clamping device for providing high twisting forces and low damage to a screw device comprises a handle; a driving portion formed with a space; the space including at least two resisting portions and at least two adhesion portions; the resisting portions and adhesion portions being alternatively arranged; each of the connection of the resisting portion and the adhesion portion being formed with a recess for receiving apexes of a screw means so as to prevent the screw means from damage; and each resisting portion having two cambered protrusions at two ends and three sharp teeth between the two cambered protrusions; the apexes of cambered protrusions and sharp teeth being collinear. Furthermore, the driving portion of the present invention can be used to a sleeve so that sleeve has the same function of the driving portion. Thereby it is preferred that there are three resisting portions and three adhesion portions.

Abstract: A wrench is cooperated with a fastener. The fastener has a plurality of surfaces jointed with each other at respective corners of the fastener. The wrench has a driving cylindrical member including an enclosed opening formed therein and having six corner spaces and six sides provided therein. Each of the six sides of the driving cylindrical member includes two cambered bulges formed and provided therein for engaging with the surfaces of the fastener, and a recess is formed between said cambered bulges.

Abstract: A wrench for use in connection with a lock nut including outwardly extending protrusions. The wrench includes a base portion and a finger and an engagement tab extending from the base portion. The finger is spaced from the engagement portion with a recess provided between the finger and the engagement portion. To rotate the nut, the finger is positioned over the top surface of the nut. The engagement tab is angled downwardly relative to the finger to engage the outwardly extending protrusions of the nut.

Abstract: An open end wrench for use with a fastener having a polygonal gripping portion has an elongated body, a first jaw having a first bite surface and a second jaw having a second bite surface. The jaws form a throat therebetween having a closed end and an open end. The bite surfaces are disposed with engaging surfaces so that majority components of force vectors applied normal to the first and second bite surfaces are directed parallel to the wrench handle axis.

Abstract: An open end C-wrench is provided having an open end C-wrench head driven by a conventional square ratchet extension tool. The open end C-wrench head has four flat surfaced jaws encompassed within a thin, narrow web body having a small square hole integrally centered therein. The jaws include two opposed unequal length, one short and one long, parallel drive jaws enclosing two adjoining equal length backup jaws. The four jaws squarely engage four continuous sides of the nut defined first, second, and third and fourth sides. When the wrench is in the drive position, the short drive jaw surface engages about fifty percent of the first side of the nut while the longer drive jaw engages about ninety percent of the fourth side of the nut while the two backup jaws coextend in secure engagement with the second and third sides of the nut. Greater driving torque is provided by the drive hole being integrally centered in the web body.

Abstract: A dual function wrench includes two function ends and the two different function ends are overlapped with each other. Each function end includes a clamping space and the two respective clamping spaces are in communicating with each other. The first function end includes two fixed jaws which have two respective flat clamping surfaces facing with each other. The second function end is a quick release function end so as to rotate an object without removing the second function end from the object.

Abstract: A box wrench assembly has latch edges and accommodating grooves sequentially disposed around the internal periphery of an operating end of a box wrench, and each accommodating groove is disposed between two latch edges, and a groove is disposed proximate to the middle of a protruded surface of the latch edge to divide a cambered surface into two, so as to fit screw pieces of different shapes when the wrench is used.

Abstract: An insert for use in a gripping assembly is disclosed. The insert includes a base member having a plurality of gripping teeth. The teeth are arranged in at least two substantially adjacent rows, where at least one row of teeth is offset or staggered longitudinally from an immediately adjacent row of teeth. When the teeth engage a cylindrical member, a resistance profile is created that is substantially continuous and does not oscillate over a length of the insert approaching 100% of the length of the entire insert.

Abstract: A polygonal member engaging device includes a box end and a handle connected to the box end. The box end has a hole for receiving an engaging ring therein which has a plurality of ridges and grooves defined in an inner periphery thereof a clamping hole of the engaging ring. The ridges and the grooves are alternatively arranged from each other in the inner periphery of the clamping hole and each ridge has an enlarged portion extending radially outward therefrom and a width “W1” between two adjacent enlarged portions of the ridges is smaller than a width “L1” of a bottom of each groove.

Abstract: A die assembly adapted to be attached to one of a wrench first arm and a wrench second arm. The die assembly includes a die having a pipe facing front spaced apart from but parallel to the pipe longitudinal axis, a wrench facing rear, and two spaced apart opposed sides, each connected to the die front and die rear. The die is thick on one side and thin on the other side so that the die facing front has a face that recedes from the pipe from one edge to the other edge so that contact between the die facing front varies depending upon the diameter of the pipe. The die rear also has a convex curve so that the die has a thick mid section.

Abstract: Open-end symmetrical wrenches retain fasteners fully seated in the jaws of the wrench. The jaws have fastener-engaging surfaces with substantially planar and parallel sections that extend past the front side corners of the fastener when it is fully seated in the wrench and serrated diverging sections extending outwardly and rearwardly from these planar sections. The serrated diverging section may be arcuate or a slightly inclined. Both types of diverging section are designed to reduce slipping and are connected to rear corners of the fastener-engaging cavity that are designed and positioned to avoid contact with the rear side corners of the fastener. Arcuate rear side corners of the wrench cavity avoid contact with the rear side corners of the fastener and avoid stress concentration points. The throat that connects the corners has two gentle curves or flat surfaces leading to a central arc. This modified “U” design provides more metal in the throat of the wrench, which stiffens the jaws.

Abstract: A ratchet wrench structure includes a wrench body, a ratchet wheel, and a socket. The ratchet wheel has a center formed with a combination hole which has an inner periphery formed with a plurality of insertion ribs. Each of the insertion ribs of the ratchet wheel includes two first insertion faces located on the two opposite sides thereof, and a second insertion face located between the two first insertion faces. Thus, the ratchet wrench structure is available for sockets with sector-shaped and arcuate-shaped insertion recesses.

Abstract: A wrench includes an open end which includes two jaws and a connection portion connected between the two jaws. A clamping portion is defined in an inside of each jaw and located close to a first side of each jaw. A loose portion is defined in the inside of each jaw and located close to a second side of each jaw. A width between the two respective loose portions of the two jaws is wider than a width between the two respective clamping portions of the two jaws. A pushing tongue is located between the two jaws. A nut can be clamped by the clamping portions of the two jaws by compressing the pushing tongue, and is freely rotatable relative to the open end when located in a space enclosed by the loose portions.

Abstract: A device for use in a torque transmitting system including a driver having a specially configured driver end and a fastener having a specially configured recess for receiving the end of the driver, wherein the respective externally configured and internally configured components include a body having an axis in which the body has an outer polygonal cross section defined by a perimeter wall, an inner polygonal central portion positioned within the perimeter wall and having an area less than the area of the outer polygonal cross section; a drive wall which forms a portion of the perimeter wall and extends on a plane from a proximal end outwardly from the polygonal central portion to a distal end; a first outer wall forming another portion of the perimeter wall has a proximal end joining the distal end of the drive wall at an angle which may be less than 90° and a distal end terminating on the perimeter wall.

Abstract: An adjustable wrench. When the wrench is turned in a direction, the fastener is turned and when the wrench is turned in an opposite direction, the fastener is kept still. The wrench includes a handle having a fixed jaw, a movable jaw slidably provided on the handle, an adjusting worm for driving the movable jaw moving and an elastic supporting device. The fixed jaw has a holding surface facing the movable jaw, the holding surface has a driving face and a base face with one end connecting the rails and another end connecting the driving face. The base face rests against a fixed side of the fastener and the driving face rests against a movable side of the fastener which is a side next to the fixed side. The movable jaw has a holding surface facing the fixed jaw.

Abstract: A wrench cooperating with a fastener, the fastener having a plurality of surfaces joint each other at respective corners of the fastener. The wrench comprises: driving cylindrical member including an enclosed opening formed therein and having six corner spaces and six sides provided therein, said six sides of said driving cylindrical member each including two cambered bulges formed and provided therein for engaging with the surfaces of the fastener, and a recess formed between said cambered bulges respectively.

Abstract: Utility is enhanced by an adjustable wrench including a fixed jaw fixedly formed at the body, an adjustable jaw adjustable relative to the fixed jaw, and a fastening unit disposed at one or each of the fixed jaw and the adjustable jaw, the fastening unit including a plurality of sprags such that one end of each of the sprags is linearly aligned facing the opposite jaw.

Abstract: A wrench for use in connection with a lock nut including outwardly extending protrusions. The wrench includes a base portion and a finger and an engagement tab extending from the base portion. The finger is spaced from the engagement portion with a recess provided between the finger and the engagement portion. To rotate the nut, the finger is positioned over the top surface of the nut. The engagement tab is angled downwardly relative to the finger to engage the outwardly extending protrusions of the nut.

Abstract: An extensible ratcheting-type wrench head for imparting torque to a fastener having a plurality of sides. The wrench head comprises a lug aperture for mateably receiving a drive lug disposed on an extension handle.

Abstract: A wrench is provided for driving an object formed with a plurality of facets and a plurality of corners. The wrench includes a head and a handle extending from the head. The head includes two jaws and a throat formed between the jaws. Each of the jaws includes a convex face formed on an internal side thereof for contact with one of the facets of the object. The throat includes two convex faces formed on an internal side thereof each for contact with one of the facets of the object. A recess is defined between each of the convex faces and one of the convex faces. A recess is defined between the convex faces. Each of the recesses receives one of the corners of the object. The recesses may be rounded.

Abstract: A threaded fastener capable of being reduced in size and weight. A pair of side wall surfaces (18) of each of six radially outwardly projecting, torque transmitting portions (16) lie on straight lines passing through the center line (O) in a cross section perpendicular to the center line (O) so as to transmit torque through the side wall surface (18), whereby the direction of a surface orthogonal force N applied to a force-applied point P by a wrenching tool coincides with the direction of an effective wrenching force F. This arrangement reduces an operation force required for rotating the wrenching tool and accordingly the load acting on each of the torque transmitting portions, in comparison with a conventional hexagonal head (100). That is, it is possible to reduce the diameter of the head portion (12) of the threaded fastener (10) and the size and weight of the head portion (12), while avoiding deformation of the side wall surfaces (18) through which the torque is transmitted.

Abstract: A wrench includes a head and a handle extending from the head in a direction. The head includes two jaws extending from the head in an opposite direction and a throat formed between the jaws. Each of the jaws includes a contact surface for contact with a facet of a head of a bolt. The contact surface of at least one of the jaws includes a plurality of teeth. The throat defines a central recess for receiving a corner of the head of the bolt. The head may define a recess between the throat and each of the jaws. The throat may include two flat contact surfaces for contact with two adjacent facets of the head of the bolt. The central recess defined in the throat is positioned between the flat contact surfaces of the throat.

Abstract: A socket for a wrench has a body with a central hole defined in one end of the body and a connecting device formed on the second end of the body. Multiple first protrusions are formed on the inner surface of the central hole, and each first protrusion has a peak with a first angle. A second protrusion is formed on the inner surface of the central hole between each pair of adjacent first protrusions. Each second protrusion has a peak with a second angle and a recess to make the second angle smaller than the first angle of the peak of the first protrusions. With such a socket, the socket can securely hold the head of the fastener with the peaks on the protrusions even when the head has been worn away.

Abstract: A wrench used to tighten and loosen mechanicals on electrical jumper cables without damaging the mechanical. The innovative tool includes a head portion having first and second work surfaces for engaging a mechanical's grip, said first and second work surfaces arranged about an imaginary axis of rotation and substantially parallel to said axis, and a handle secured to the head for allowing manual manipulation of the present invention so as to cause the mechanical grip to rotate. When the innovative wrench head is turned in a predetermined direction, the two work surfaces provide substantial surface-to-surface contact with the mechanical grip being turned, thereby increasing rotational torque while reducing grip deformation and damage.

Abstract: A wrench cooperating with a fastener which includes a number of surfaces joining each other at respective corners of the fastener, the wrench includes a head having an enclosed opening, or open opening, each of which has two or more surfaces or sides, and two curved bulges extended or provided on each of the surfaces or sides, and a curved recess formed between the bulges. The head may further include a projection extended in each of the recess and extended between the bulges for engaging with the surface portions that are spaced from the corners of the fastener.

Abstract: The invention concerns a tool with a rigid jaw (3) defining four protuberances (P1 to P4). The two end protuberances (P1, P4) engage the opposite lobe (41, 42) of the head (4) to be driven, and the intermediate front protuberance (P2) provides a bearing point on the intermediate front lobe (44). The fourth protuberance (P3) serves as repositioning guide The tool enables to turn a TORXprofile with ratcheting and a repositioning of slightly more than 60.

Abstract: A reversible adjustable wrench comprises a handle having a fixed jaw and a guiding slot at an end of the handle. The fixed jaw has two slots at lateral sides thereof, each of which defines two stopping potion at lateral sidewalls thereof. A movable jaw has an end thereof slidable received in the guiding slot of the handle. An adjusting worm is to drive the movable jaw moving toward and away from the fixed jaw. A rotatable device has two body potions received in the slots. A pin passes through the body potions and the fixed jaw for pivoting the rotatable device at the fixed jaw.

Abstract: An improved structure of an adjustable spanner, essentially comprised of an adjustable spanner, jaws, rack, screw and coil; within, a thumbscrew is used to adjust the jaws of the spanner; a channel provided in each jaw; a hole drilled in the jaw to accommodate a coil; a T-shape rack being inserted into each channel; a countersunk screw being locked into the rack, and further into the hole to compress the coil; a hole being drilled in the head of the spanner to secure the rack in the jaw with a fixation screw; twisting of the spanner being achieved by having the racks jointly to fly secure the bolt or the nut to compress it with the force from the coil, and in case of limited scope for twisting, the bolt or nut sliding cross counter-clockwise the rack and retreating to allow the spanner to retreat before being twisted clockwise.

Abstract: An adjustable, open end wrench is described having a wrench head for turning a variety of different size fasteners. The wrench head comprises two jaws each having an engaging surface for engaging with the fasteners. One jaw is generally fixed and connected to a gripping portion formed as a wrench lever and the other jaw is movable relative to the fixed jaw. The wrench head comprises an adjustable mechanism by which the jaws may be spaced apart including a defined maximum spacing dimension between the jaws. The wrench head further comprises an imaginary centerline intersecting both of the jaws through a midpoint of a length of the jaws substantially perpendicular to the engaging surfaces of the jaws as viewed from a side view thereof And further wherein, each jaw has a width dimension measured at the centerline, and the width dimension of both jaws combined is also defined.