Rigid Jaws Patents (Class 81/119)
- Watch and clock keys (Class 81/122)
- With nut ejectors (Class 81/124.1)
- Work-holding (Class 81/125)
- Slotted socket (Class 81/124.2)
- Through socket and perpendicular handle (Class 81/124.3)
- Plural sockets (Class 81/124.4)
- Having axial opening for removable handle (Class 81/124.6)
- Having perpendicular handle (Class 81/124.7)
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Publication number: 20100122608Abstract: An open-ended ratchet wrench includes a handle provided with an open driving head, an open ratchet wheel mounted in the driving head of the handle and having an outer wall provided with a plurality of oneway ratchet teeth, and a pawl member movably mounted in the driving head of the handle and having a first side provided with a plurality of oneway locking teeth detachably meshing with the ratchet teeth of the ratchet wheel. Thus, the ratchet wheel has a side provided with an opening to make the ratchet wheel flexible so that the ratchet wheel is mounted on and detached from the workpiece easily and quickly, thereby facilitating a user operating the ratchet wrench to rotate the workpiece.Type: ApplicationFiled: November 17, 2008Publication date: May 20, 2010Inventor: Chen-Tsung Chen
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Publication number: 20100101378Abstract: A pawl disengagement tool intended for use with a slack adjuster has an elongated handle with a first end and an opposite second end, and a longitudinal axis extending from the first end to the second end. A slotted aperture formed at the first end includes a hole with a diameter that is greater than the first diameter of the pawl cap. A first slot extends from the hole and has a width that is greater than the second diameter of the pawl shaft of the pawl assembly of the slack adjuster. A portion of the tool defining the hole includes a chamfered periphery. The chamfered periphery defines an inclined plane leading to the first slot. The inclined plane has a thickness that increases up to a thickness equal to a disengagement thickness. The disengagement thickness is effective to cause disengagement of the pawl assembly. The second end of the tool includes a forked end that includes a pair of parallel spaced apart wedge-shaped prongs. In use, the forked end or slotted aperture is manipulated (e.g.Type: ApplicationFiled: October 29, 2008Publication date: April 29, 2010Applicant: ZINSTAR INNOVATIONS, INC.Inventor: Barry Thompson
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Patent number: 7694610Abstract: A tool is provided including a ratchet assembly including a handle grip and a socket; and a clamping assembly including a clamp with a notch; wherein the ratchet assembly is configured to be affixed to the clamping assembly so that a rotatable force applied to the handle grip actuates the clamp.Type: GrantFiled: June 27, 2007Date of Patent: April 13, 2010Assignee: Siemens Medical Solutions USA, Inc.Inventors: Thomas H. Flores, William J. Hanrahan
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Publication number: 20100061825Abstract: The present invention provides mounting members useable for fastening two objects together and their mounting tools. In one embodiment, the mounting member includes a first tapered tip and an opposite, second tapered tip defining a shank therebetween, where the shank has an exterior surface and a structure formed on the exterior surface.Type: ApplicationFiled: September 5, 2008Publication date: March 11, 2010Inventors: Lisong LIU, Jessica Sofia LIU
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Publication number: 20100044112Abstract: A drill stem connection system and method is shown that provides a secure hold on drill stem surfaces while unscrewing a threaded connection. Two lever arm components are adjustable to a number of possible orientations to allow for fitting the drill stem wrench in tight spaces. Concentric rotation of lever arm components facilitates connection of the lever arm components together. Configurations and methods shown provide a stable and powerful tool to loosen threaded drill stem effectively.Type: ApplicationFiled: November 4, 2009Publication date: February 25, 2010Applicant: TT Technologies, Inc.Inventor: Michael Tjader
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Patent number: 7661339Abstract: 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.Type: GrantFiled: August 10, 2008Date of Patent: February 16, 2010Assignee: Proxene Tools Co., Ltd.Inventor: Arthur Wu
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Publication number: 20090301584Abstract: A method for assembling and adjusting a pressure setting of a valve includes positioning a threaded spider and a poppet spring on a poppet, mounting a valve body into an assembly fixture, inserting the poppet including the threaded spider and the poppet spring positioned thereon into the mounted valve body, pushing an adjusting fork through the assembly fixture and through the valve body, engaging the threaded spider with the adjusting fork, and flowing pressurized fluid into the assembly fixture while simultaneously rotating the adjusting fork in a direction to draw the threaded spider into the valve body and to compress the poppet spring.Type: ApplicationFiled: June 10, 2008Publication date: December 10, 2009Inventor: Joseph R. McKee
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Publication number: 20090235787Abstract: The present invention is related to an open-end wrench including a first jaw and a second jaw and a throat section connected between rear ends of the two jaws. A toothed section is disposed on the inner side of the first jaw. The toothed section has multiple sharp teeth and a wide tooth positioned behind the sharp teeth. The wide tooth has a largest width among all the teeth. The bottommost point of the throat section is spaced from a front end of the first jaw by a first length. The bottommost point of the throat section is spaced from the tooth crest of the wide tooth by a second length, which ranges from ? to ½ the first length. In addition, the toothed section has a third length, which is about ? the first length.Type: ApplicationFiled: June 4, 2009Publication date: September 24, 2009Inventor: Chih-Ching HSIEH
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Publication number: 20090217790Abstract: 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.Type: ApplicationFiled: February 28, 2008Publication date: September 3, 2009Inventor: Robert J. Harter
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Publication number: 20090165601Abstract: The benefit of and the practical side of the improvement, by adding the retaining shoulder to the jaws of the wrench on the box-end and the open-end parts of the wrench, is the decline of slippage and limited loss of control of the tightening or removal procedure, producing an ease of maintaining one's position on the bolt or nut when the vibration of an impact wrench is incorporated or manual procedures, no matter how precarious the position or how open the position is to the mechanic, technician, or untrained shop help. This Backup Wrench does not allow the nut or bolt to skip through the jaws of the wrench whether on open-end or box-end as it has a built-in stop. The stop holds the nut but alls the bolt to protrude without affecting the Backup Wrench's position. Sizes range from ¼? on up to any size desired—American or Metric.Type: ApplicationFiled: December 26, 2007Publication date: July 2, 2009Inventor: Jonathan Douglas Bauman
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Publication number: 20090107300Abstract: Apparatus and kit for removing rotatably fastened objects including at least one elongate member having a first end face and a second end face, such that the first end face includes a first interface to substantially engage the elongate member with a rotatably fastened object so that a rotational force is applied to the fastened object substantially when a force is applied to the elongate member, and wherein the first end face also includes a second interface to substantially engage the elongate member with a leverage tool and a second end face, and wherein the second end face includes a third interface to substantially engage the elongate member with a rotatably fastened object so that a rotational force is applied to the fastened object substantially when a force is applied to the elongate member.Type: ApplicationFiled: October 26, 2007Publication date: April 30, 2009Inventor: Richard D. Cubberley
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Publication number: 20090090222Abstract: The Installer head notches carry a standard two or four winged nut. The control shaft has a pull ring in the very top and holes for a handle to be inserted as needed. The controller is pinned in support ring diameter, inverted up the cavity centered and cemented into the lower body diameter. Place the wing nut in body head notches and drop the pull line through the holder shank. Hook and pull ring to pull the controller out the holder top. When the controller is pulled out the holder top the wing nut will be positioned to align with the shank threads. Insert the handle to prevent a all back into the cabinet. Lift handle turn the top holder clock wise by hand until wing nut is snug. Use the handle to turn the shaft counter clock wise for the final torque.Type: ApplicationFiled: September 4, 2008Publication date: April 9, 2009Inventor: Robert Jerome Schroeder
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Patent number: 7454998Abstract: A socket assembly includes an outer part and an inner part which is inserted in the outer part. A flange extends radially outward from an end of the inner part and is mounted on an end of the outer part. The outer part is made by steel and the inner part is made by aluminum. A positioning device is located between the outer part and the inner part. The positioning device includes a plurality of grooves defined in an inner periphery of the outer part and a plurality of ribs extend from an outer periphery of the inner part. The ribs are engaged with the grooves.Type: GrantFiled: July 25, 2006Date of Patent: November 25, 2008Inventor: Chih-Ching Hsieh
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Patent number: 7448121Abstract: A metal hand tool is fabricated by a method to manufacture the metal hand tool, and the metal hand tool has a body with an outer surface and a preparing region, a printing layer with a mark and an electroplate layer. The method has a forming step, a printing step and an electroplating step. In the preparing step, the body is made of metal. In the printing step, the printing layer is printed on the preparing region in the outer surface of the body and the mark is enchased on the printing layer with an external surface. In the electroplating step, the electroplate layer is electroplated on the external surface of the mark and the outer surface of the body except the preparing region with the printing layer to complete the metal hand tool.Type: GrantFiled: April 17, 2007Date of Patent: November 11, 2008Assignee: Jin Xiang Kai Industry Co., Ltd.Inventor: Chiu-Yuea Hung
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Patent number: 7418893Abstract: A wrench includes a body having two ends and a handle between the ends of the body. At least one of the ends of the body can be used for driving an object. A plurality of character units are provided on each holding face and form an anti-slipping section. At least one of the holding faces includes at least one indication area located in the anti-slipping section. The indication area includes an indication marking.Type: GrantFiled: December 13, 2006Date of Patent: September 2, 2008Inventor: Bobby Hu
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Publication number: 20080196557Abstract: An open-end wrench having an open-end driving head and first and second jaw clips extending from two sides thereof. A maximum width W between outer edges of the two jaw clips is equal to 130 to 180% of a mouth width S between two opposite jaw end surfaces of the jaw clips. A distance from an inner corner at a junction between one of the jaw end surfaces and the connection end surface to an outer end surface of the jaw clip is defined as a stress region width T1. A length of a transversal phantom center line from one of the jaw end surfaces of the jaw clips to the outer edge of the jaw clip is defined as a jaw width T2 smaller than T1. Thus, the nut can be greatly wrenched in the limited space by limiting the ratio of W to S, and it is possible to prevent the structure from being broken.Type: ApplicationFiled: February 20, 2007Publication date: August 21, 2008Inventor: Arthur Wu
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Publication number: 20080156150Abstract: 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.Type: ApplicationFiled: March 10, 2008Publication date: July 3, 2008Inventors: Richard B. Wright, Kenneth R. Milligan
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Patent number: 7387052Abstract: The present invention relates to a wrench of hand tool comprising a grip wherein at least one end of the grip is a driving head, and there is a sunken area on the surface of the grip. The sunken area is filled with many convexities and intensive knurl is implemented and embossed mark is established, the embossed mark being surrounded with the intensive knurl is visually outstanding so that the marks are outstanding of visual identification meanwhile the purpose of comfort and firmness in grip is achieved.Type: GrantFiled: May 12, 2006Date of Patent: June 17, 2008Inventors: Chiou-Mai Chang, Yueh-Li Wang
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Publication number: 20080128172Abstract: A drill stem connection system and method is shown that provides a secure hold on drill stem surfaces while unscrewing a threaded connection. Two lever arm components are adjustable to a number of possible orientations to allow for fitting the drill stem wrench in tight spaces. Concentric rotation of lever arm components facilitates connection of the lever arm components together. Configurations and methods shown provide a stable and powerful tool to loosen threaded drill stem effectively.Type: ApplicationFiled: October 26, 2007Publication date: June 5, 2008Inventor: Michael Tjader
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Publication number: 20080083305Abstract: The present invention is a wrench for tightening or removing caps on containers. More specifically a wrench to tighten or remove a tote cover or bung. Disclosed is a combination tote cover and bung wrench. Also disclosed is just a tote cover wrench.Type: ApplicationFiled: October 2, 2007Publication date: April 10, 2008Inventor: JIMMY MILEY
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Patent number: 7340982Abstract: 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.Type: GrantFiled: March 28, 2005Date of Patent: March 11, 2008Assignee: Wright Tool CompanyInventors: Richard B. Wright, Kenneth R. Milligan
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Publication number: 20080047400Abstract: A wrench includes a body having two ends and a handle between the ends of the body. At least one of the ends of the body can be used for driving an object. A plurality of character units are provided on each holding face and form an anti-slipping section. At least one of the holding faces includes at least one indication area located in the anti-slipping section. The indication area includes an indication marking.Type: ApplicationFiled: December 13, 2006Publication date: February 28, 2008Inventor: Bobby Hu
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Patent number: 7331260Abstract: This invention relates to a driving head of rotary wrenching tools, the driving head can be a sleeve or directly implemented on the wrench, the driving head has an opening with grooves, forefront surfaces and concavities implemented inside the opening, the forefront surfaces are implemented individually in-between the grooves, and one concavity is implemented on each forefront surface, with which varieties of work pieces in different shapes can be tightly fitted into.Type: GrantFiled: May 12, 2006Date of Patent: February 19, 2008Inventor: Chin-Shun Cheng
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Patent number: 7305909Abstract: 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.Type: GrantFiled: April 18, 2006Date of Patent: December 11, 2007Inventor: Robert Arthur Bollinger
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Publication number: 20070220948Abstract: A tool is provided that is adapted to calibrate a dispenser operative to dispense a selected granular material received from the interior of a receptacle. The tool may include a handle extending longitudinally from a first handle end to a second handle end along a longitudinal axis and a positioning element located proximately to the second handle end. The positioning element is adapted to locate the flow control member associated with the dispenser at a selected position thereby to set a desired delivery rate of the granular material. The positioning element may be formed as an elongate projection extending upwardly from a location proximate to the second handle end or as a flat blade. A set of tools is also provided such that the dispenser can be set at alternative desired delivery rates. A method of calibrating the delivery rate of a dispenser is also provided.Type: ApplicationFiled: March 21, 2007Publication date: September 27, 2007Applicant: Syngenta Crop Protection, Inc.Inventors: Douglas Arthur Sutton, Daniel Kidder
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Patent number: 7156000Abstract: 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.Type: GrantFiled: March 18, 2004Date of Patent: January 2, 2007Inventor: Lucien J. Wroblewski
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Patent number: 7146884Abstract: 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.Type: GrantFiled: July 11, 2005Date of Patent: December 12, 2006Assignee: Easco Hand Tools, Inc.Inventors: Peter C. Chaconas, Dana L. Delaney, Awad Aly Gharib
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Patent number: 7140275Abstract: 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.Type: GrantFiled: July 19, 2006Date of Patent: November 28, 2006Inventor: Scott A. Staples
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Patent number: 7117767Abstract: A double open-end claded-head wrench (10) that is particularly designed to loosen and tighten hexagon bolts and nuts that are made of a relatively soft metal such as aluminum. The wrench (10) is made of aluminum and includes a wrench handle (12), a first open-end head (28), and a second open-end head (56), a notch (50) that is cut into the corners of each of the wrenches hexagon angles, and a stainless steel head clad (80–86) that covers the upper and lower surfaces (14,16) of the first and second open end heads (28,56). The notches prevent the corners of the aluminum bolts or nuts from being worn by the gripping pressure applied by the heads of the wrench (10). The stainless steel claded heads (28,56) protect the wrench heads (28,56) from being worn from repeated uses of the wrench (10).Type: GrantFiled: May 18, 2005Date of Patent: October 10, 2006Inventor: Goh Seng Kiat
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Patent number: 7117770Abstract: 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.Type: GrantFiled: September 29, 2005Date of Patent: October 10, 2006Inventor: Chih-Ching Hsien
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Patent number: 7107880Abstract: A conduit locknut wrench for use in the electrical trade and designed for tightening and loosening both six and eight tooth conduit locknuts. The conduit locknut wrench allows the electrician the ability to access hard to reach locknuts at any angle and around any obstruction including other locknuts with or without protruding wires. The small light weight wrench has very thin dimensions and includes a C-shaped head with two arcuate arms, two opposed engagement teeth, an elongated thin neck and a handle portion. The handle portion includes a screwdriver leverage hole and an oversized belt clip hole.Type: GrantFiled: October 9, 2001Date of Patent: September 19, 2006Inventors: Edward F. Kitchen, Bradley D. Kitchen
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Patent number: 7100478Abstract: A socket for easily connecting and disconnecting a standard camlock fitting, such as those used in flanges on marine vessels, includes four drive lugs, or tangs, for mating with recesses on the camlock. The socket is adapted for connection to a standard ratchet wrench for providing torque to tighten or loosen the camlocks.Type: GrantFiled: March 23, 2004Date of Patent: September 5, 2006Assignee: Shell Oil CompanyInventor: Jerry Anthony Davis
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Patent number: 7096758Abstract: A tool for removing a gas cap from the gas-receiving tube of a vehicle.Type: GrantFiled: April 29, 2005Date of Patent: August 29, 2006Assignee: MPM Creations, LLCInventors: Michael A. Ferkany, Patricia Ann Ferkany, Amelia Ferkany
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Patent number: 7066057Abstract: A wrench includes two jaws extending from a head on an end of a handle. Each jaw has an inclined surface defined in a first side thereof and the two inclined surfaces define tilt angles relative to a horizontal plane, which are different.Type: GrantFiled: August 4, 2004Date of Patent: June 27, 2006Inventor: Chih-Ching Hsien
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Patent number: 7028588Abstract: A tool comprises a surface area, the area being printed in one of two different first colors for identifying the tool as one labeled in either the British system or the metric system, and a numeral as a representation of a size of the tool disposed in the area, the numeral having a second color different from the first color of the area for providing a contrast of the numeral to other portions of both the area and the tool. The correct size of the tool thus can be quickly identified. Moreover, a number of embodiments are made possible.Type: GrantFiled: March 4, 2004Date of Patent: April 18, 2006Inventor: Leo Shih
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Patent number: 7024967Abstract: A ratchet wheel structure includes a latch edge, a containing groove and a groove coupled in sequence, and the latch edge disposed at an internal periphery of the ratchet wheel is a flange, and the containing groove is disposed between the latch edges, and the groove is protruded from the middle of a protruded surface of the latch edge for dividing the latch edge into two.Type: GrantFiled: June 20, 2005Date of Patent: April 11, 2006Inventor: Chin Shun Cheng
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Patent number: 6997085Abstract: A threaded fastener capable of being reduced in size and weight. A pair of side wall surfaces of each of six radially outwardly projecting, torque transmitting portions lie on straight lines passing through the center line in a cross section perpendicular to the center line so as to transmit torque through the side wall surface, 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. That is, it is possible to reduce the diameter of the head portion of the threaded fastener and the size and weight of the head portion, while avoiding deformation of the side wall surfaces through which the torque is transmitted.Type: GrantFiled: May 27, 2002Date of Patent: February 14, 2006Assignee: OSG CorporationInventor: Kouzou Yamamoto
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Patent number: 6938522Abstract: A Cable Wrench that guides, connects and disconnects an F-Connector male end attached to a coaxial cable, to an F-Connector female connection on a TV, VCR, computer or any other device that uses coaxial cable or a cable splitter. This invention prevents the coaxial cable from becoming disengaged, or from slipping out of the cable wrench by using a curved slot that runs the entire axial length of the tool. The wrench provides a large cut away section at the wrench end to allow better visibility while operating the tool and a section adjacent to and behind the wrench portion that is wider in order to allow use of the tool with crimped or large connectors.Type: GrantFiled: November 10, 2004Date of Patent: September 6, 2005Inventor: Robert Thomas Stannik
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Patent number: 6912937Abstract: A wrench with visually recognizable mechanism comprises a main body as a handle and wrench heads that are separately connected to two ends of the main body. The wrench heads are capable of tightening or loosening fastening parts with corresponding dimensions. The visually recognizable mechanisms are provided on the main body or the wrench heads, whose appearances assist in distinguishing classification and properties of the wrenches.Type: GrantFiled: July 21, 2003Date of Patent: July 5, 2005Assignee: Lea Way Hand Tool CorporationInventor: Tom Tuanmu
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Patent number: 6912936Abstract: A holding tool is used to connect or disconnect a water pump pulley and a fan clutch. The water pump pulley is attached by a threaded shaft to a connector on the fan clutch, and the pulley has at least a pair of fasteners each with an exposed fastener head that extends from the pulley's surface which is next to the fan clutch. A head of the tool is inserted into a narrow space between the pulley's surface and the fan clutch. The tool head is narrow enough to fit into this space. This tool head includes a hook element at an end of a straight edge lever element. While grasping a fastener head of one fastener with the hook element and engaging a fastener head of another fastener with the straight edge lever element, a second tool is inserted into the narrow space to grasp the connector on the fan clutch. While both tools are engaged, one or both the tools are turned to disconnect or connect the threaded shaft of water pump pulley and the connector on a fan clutch.Type: GrantFiled: December 20, 2002Date of Patent: July 5, 2005Assignee: Schley Products, Inc.Inventor: Timothy P. Hume
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Patent number: 6907805Abstract: 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.Type: GrantFiled: July 24, 2002Date of Patent: June 21, 2005Assignee: Wright Tool CompanyInventors: Richard B. Wright, Kenneth R. Milligan
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Patent number: 6899000Abstract: 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.Type: GrantFiled: November 24, 2003Date of Patent: May 31, 2005Inventor: Chih-Ching Hsien
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Patent number: 6840139Abstract: An improved tool for use in association with a deformable nut of a fastener includes a socket having inner surface that forms a cavity on the socket. The inner surface includes one or more engagement surfaces that are tapered inwardly at an angle that approaches a taper of a deformable wall of the deformable nut. In one embodiment the tapering of the engagement surfaces is provided by configuring the engagement surfaces to extend in a tapered fashion generally toward a central axis of the socket. In another embodiment, the tapering is provided by configuring the engagement surfaces to each extend in a spiral fashion about a spiral axis that may, for example, be parallel and spaced-apart from the central axis of the socket.Type: GrantFiled: May 8, 2003Date of Patent: January 11, 2005Assignee: Alcoa Global Fasteners, Inc.Inventor: Luke L. Haylock
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Publication number: 20040237728Abstract: 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.Type: ApplicationFiled: March 18, 2004Publication date: December 2, 2004Inventor: Lucien J. Wroblewski
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Patent number: 6820521Abstract: A tool for driving headed fasteners has an opening in the tool. The opening is defined by a wall of the tool. The wall has a plurality of flat planar surfaces. The planar surfaces are connected by a connection at the ends of each planar surface to define the opening. Each connection surface has a convex surface continuous with the planar surface. A concave surface is continuous with the convex surface. The convex and concave surfaces define arcs with the arcs having the same radius.Type: GrantFiled: October 16, 2001Date of Patent: November 23, 2004Assignee: Black & Decker Inc.Inventors: Stewart B. Dobson, Malek Abdul Massih
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Publication number: 20040216566Abstract: A tool is provided in an outer surface with a first identification device and a second identification device disposed on the first identification device. The first identification device is used to associate the tool with the metric or British system in terms of specification. The second identification device is used to print thereon the specification of the tool.Type: ApplicationFiled: April 30, 2003Publication date: November 4, 2004Inventor: Leo Shih
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Patent number: 6810774Abstract: A wrench includes two jaws extending from an end of a handle and a hole is defined in one of the jaws. The hole communicates with a clamping surface of the jaw having the hole and a magnet is received in the hole. The magnet attracts the object that is clamped by the wrench while in use.Type: GrantFiled: November 19, 2002Date of Patent: November 2, 2004Inventor: Chih-Ching Hsien
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Patent number: 6805029Abstract: 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.Type: GrantFiled: January 17, 2003Date of Patent: October 19, 2004Assignee: Snap-on IncorporatedInventors: Michael L. Foster, Michael T. DeKeuster
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Patent number: D519008Type: GrantFiled: July 23, 2004Date of Patent: April 18, 2006Assignee: Easco Hand Tools, Inc.Inventor: Peter C. Chaconas
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Patent number: D541120Type: GrantFiled: July 23, 2004Date of Patent: April 24, 2007Assignee: Easco Hand Tools, Inc.Inventor: Peter C. Chaconas