Screw Threaded Work-engager Patents (Class 29/264)
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Patent number: 6609283Abstract: A convertible external/internal puller device for pulling bearings and races from within and about objects such as shafts and axles and other machine parts. The convertible external/internal puller device includes a support frame; and also includes an elongate tubular support member being disposed within the support frame and having a threaded bore extending therethrough and also being externally threaded; and further includes a jaw support member being adjustably threaded upon the elongate tubular support member; and also includes a plurality of interchangeable jaw members being pivotally attached with fasteners to the jaw support member and being guided by the support frame; and also includes an elongate press member being threaded through the elongate tubular support member and having a first end and a second end which is adapted to engage an object; and further includes a handle member being mounted to the elongate tubular support member for rotating the elongate tubular support member.Type: GrantFiled: April 4, 2002Date of Patent: August 26, 2003Inventor: Dean S. Somerville
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Patent number: 6601278Abstract: This invention relates to an improved impeller puller where a first jaw is arranged proximate a first end of an elongate support frame and a second jaw, is movably mounted along the support frame spaced from the first jaw, with both jaws extending radially outwardly from the support frame in general alignment with each other, and an extraction screw member is slidably mounted along the support member so as to be variably extended in general radial alignment with the first and second jaw members, the extraction screw member being arranged to engage a shaft so as to extract the impeller from its mounting shaft.Type: GrantFiled: September 14, 2001Date of Patent: August 5, 2003Inventor: Rudolf Koppe
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Patent number: 6601277Abstract: A puller tool for separating a security pin from a mated female part comprises an outer sleeve having an axially extending passage, a radial detent shoulder about the passage at one end of the sleeve, an actuating bolt including a threaded shank axially insertable into the passage and an enlarged head that engages the detent shoulder to prevent further insertion of the actuating bolt into the passage, and a puller member insertable into the passage from an opposite end of the sleeve. The puller member is axially slidable relative to the outer sleeve by rotation of the actuating bolt which mates with a threaded hole in the puller member, and is prevented from rotating relative to the outer sleeve during travel relative to the sleeve. The puller member includes a cavity extending axially and radially through an end thereof to receive the security pin head or female part.Type: GrantFiled: September 13, 2002Date of Patent: August 5, 2003Inventor: Richard C. Swanson
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Patent number: 6591469Abstract: A special purpose tool for manual installation and removal of bushings or sleeve bearings from press fit bearing housings within automotive engines, transmissions, and other machinery with no resultant damage to the housing is disclosed. The present tool is comprised of a cylindrical body member including a pilot diameter, which aligns the tool in coaxial relation to the bushing and a bushing locating journal that engages the bushing to be removed. A plurality of machine screws are disposed in the body member at predetermined radial positions. To remove a bushing the machine screws are advanced axially within threaded holes such that the machine screw threads tap into and capture the worn bushing and/or bearing sleeve and the tool is withdrawn. The present tool is also utilized to manually install new bushings into housings and other components by removal of the aforementioned machine screws.Type: GrantFiled: September 13, 2002Date of Patent: July 15, 2003Assignee: Sonnax Industries, Inc.Inventor: Michael G. Morin
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Patent number: 6574843Abstract: A method and apparatus for installing and replacing a valve stem from the valve stem rim opening defined in the rim of a tubeless tire from the outside of the rim, such tool including a threaded rod for engaging the valve stem and pulling the valve stem through an inwardly tapered first tube into a second tube dimensioned to fit into the valve stem rim opening, the flange of the valve stem is gradually compressed, and after the tapered tube is removed the second tube is placed in the rim opening and the valve stem is pushed into the valve stem opening using only manual force.Type: GrantFiled: July 12, 2001Date of Patent: June 10, 2003Inventor: Thomas J. Meadows
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Patent number: 6415490Abstract: A portable power tool for mounting via press fit a machine part, like a pulley (37) onto a shaft (16) by the application of an axial press force on the pulley (37), comprises a housing (17), a reaction spindle (23) with a threaded end portion (34) for engaging a threaded bore (35) in the shaft (16), a push-carrier (44) axially movable by a motion converting device (40,41) rotationally powered by a standard type power wrench (10) via a planetary gearing (24) including a planet wheel carrier (28) connected to the output spindle (15) of the power wrench (10), a sun gear (26) on the reaction spindle (23) and a ring gear (29) connected to the motion converting device (40,41).Type: GrantFiled: March 16, 2001Date of Patent: July 9, 2002Assignee: Atlas Copco Tools ABInventors: James Caruso, Dennis Wells Szabo, Karl Gunnar Björkman
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Patent number: 6370758Abstract: An apparatus and method for installing a threaded fastener having a sleeved or interference fit into a workpiece. The apparatus of the present invention includes a pulling device for pulling the threaded fastener into the workpiece, an adapter for connecting the threaded fastener and the pulling device, and a collar that fits over the adapter for allowing the adapter to more inside the collar when subject to a pulling force from the pulling device. In addition, the aforementioned apparatus may be used in a method for installing the threaded fastener having a sleeved or interference fit into the workpiece. The method includes inserting the threaded fastener into the workpiece until the threads of the fastener are exposed on the other side of the workpiece, attaching an adapter to the threaded fastener, placing the collar over the adapter and attaching the pulling device. The pulling device is then pressurized so as to pull the threaded fastener into the workpiece until the threaded fastener is fully seated.Type: GrantFiled: October 20, 2000Date of Patent: April 16, 2002Assignee: Northrop Grumman CorporationInventor: Paul Edmund Theis
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Patent number: 6266859Abstract: A power steering pump pulley removal tool has a pair of jaws mounted by mounting fasteners on opposite faces of a hub which has a threaded passageway extending axially therethrough. The jaws are in longitudinal alignment with one another and the passageway and have complementary arcuate gripping elements formed thereon so as to be remote from the hub. A pair of laterally aligned grip-holding fasteners extend between the jaws adjacent their gripping elements and are operable to hold the jaws in a closed, pulley engaging position. The hub has a handle extending laterally therefrom. A complementarily threaded drive bolt is disposed in the hub passageway so as to have a power steering pump drive shaft engaging end adjacent the gripping elements and a drive end remote therefrom.Type: GrantFiled: January 4, 2000Date of Patent: July 31, 2001Assignee: Alltrade Inc.Inventor: Hector Ray Hernandez
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Patent number: 6185804Abstract: A pivoting split nut and spacer assembly used in a method of removing failed glow plugs from diesel engines. Main body halves of the split nut, when assembled together with a pin form the pivoting split nut with opposing front and rear faces, a hexagonal outside periphery and threads on the inside periphery allowing for engagement with the threads of the glow plug. The spacer assembly is fabricated by forming cylindrical spacer bodies, forming lead-in gaps, and tether cables through holes for the tether cables. The tether cables are connected to a cable ring. After removing the sensor wire from the glow plug, a wrenching tool is used to unscrew the glow plug until all threads are exposed. A failure deformation, e.g. swelling on the heating element of the glow plug, is extracted through the narrow combustion chamber passage on a diesel engines' head by installing the pivoting split nut onto the glow plug threads and a spacer between the head and pivoting split nut.Type: GrantFiled: January 27, 1999Date of Patent: February 13, 2001Inventors: Brian D. Burns, Robert J. Hammon
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Patent number: 6178614Abstract: An apparatus and method for installing a threaded fastener having a sleeved or interference fit into a workpiece. The apparatus of the present invention includes a pulling device for pulling the threaded fastener into the workpiece, an adapter for connecting the threaded fastener and the pulling device, and a collar that fits over the adapter for allowing the adapter to more inside the collar when subject to a pulling force from the pulling device. In addition, the aforementioned apparatus may be used in a method for installing the threaded fastener having a sleeved or interference fit into the workpiece. The method includes inserting the threaded fastener into the workpiece until the threads of the fastener are exposed on the other side of the workpiece, attaching an adapter to the threaded fastener, placing the collar over the adapter and attaching the pulling device. The pulling device is then pressurized so as to pull the threaded fastener into the workpiece until the threaded fastener is fully seated.Type: GrantFiled: October 13, 1998Date of Patent: January 30, 2001Assignee: Northrop Grumman CorporationInventor: Paul Edmund Theis
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Patent number: 6148492Abstract: An extractor for arrowheads including a fork in a generally C-shaped configuration having two spaced parallel prongs with forwardly extending ends and with a base coupling the prongs in spaced relationship. The base is formed with a central first aperture parallel with and intermediate the prongs and with a transverse threaded second aperture coupling the primary aperture with one side face. A threaded set screw is located within the threaded aperture of the base and extends through the first aperture of the base. A handle has a bore there through. A rearward sleeve is positioned within the bore of the handle and has a central threaded bore there through. An elongated threaded rod extends through the forward sleeve and the rearward sleeve and is threadedly coupled thereto. The threaded rod is formed with a forward end located between the prongs with a threaded recess therein for threaded coupling and uncoupling with respect to a threaded portion of an arrowhead to be extracted.Type: GrantFiled: November 11, 1999Date of Patent: November 21, 2000Inventor: Daren R. Gaulden
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Patent number: 6150644Abstract: Method and device for time-optimized curing of winding coils and/or rods of electrical machines having winding coils and/or rods with groove and coil face areas and have at least one individual conductor provided with a curable material. The coated conductor insulation or a conductor assembly is inductively heated prior to, and/or during the inductive heating process and/or thereafter, the winding coils and/or rods are pressed and the winding coils and/or rods are cooled. With this method and device, time-optimized manufacture of winding coils and/or rods can be manufactured with reproducible quality results.Type: GrantFiled: September 25, 1998Date of Patent: November 21, 2000Assignee: Siemens AGInventor: Rudolf Senger
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Patent number: 6144753Abstract: A speaker apparatus has a damper for supporting vibrating elements including a vibrating diaphragm. The damper is formed by injecting a predetermined amount of a resin material into a metal mold of an injection molding equipment.Type: GrantFiled: May 19, 1997Date of Patent: November 7, 2000Assignee: Pioneer Electronic CorporationInventors: Takashi Ohyaba, Shunichi Takahashi, Showichiro Terauchi, Takanobu Saito, Tatsuya Ando, Yoshiya Usami, Hiroyuki Kataoka
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Patent number: 6122810Abstract: Apparatus removes and replaces the valve core from the internally threaded valve stem of apparatus such as vehicular tires and air conditioning systems. Valve cores of the Shrader type have a rectangular outward projection. The device of the invention has a pair of opposed jaws that are movable toward and away from each other for removably grasping the lateral sides of the projection. The jaws are moved toward one another for grasping by a threaded rod with a tapered end that cooperates with sloping elements opposite the jaws. The jaws move away from each other for releasing the valve core by elastic bias. An optional embodiment includes a valve to enable removal and replacement of the core without the loss of fluid from the valve stem. The invention may be used to replace a valve core, or to add fluid such as refrigerant or tire sealant without interference from a valve core.Type: GrantFiled: August 30, 1999Date of Patent: September 26, 2000Inventor: Robert P. McInnes
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Patent number: 6116855Abstract: A flexible impeller has an insert design incorporating a threaded end within its insert that cooperates with a threaded removal tool for jacking the impeller from the shaft by rotation of the threaded removal tool.Type: GrantFiled: July 27, 1998Date of Patent: September 12, 2000Assignee: Hypro CorporationInventor: Bruce A. Maki
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Patent number: 6092279Abstract: A bearing puller for removing from a shaft a bearing having a tapered eccentric flange on its inner race includes a cylindrical tube disposed within an outer cylindrical housing. The puller tube is capable of sliding displacement within and along a portion of the length of the outer housing and includes a first end having outer threads for engaging and maintaining a puller nut on a first end of the housing. The puller nut includes a threaded aperture on an end thereof for receiving a draw bolt which is inserted in the housing and extends to a second opposed end thereof. A second end of the sliding puller tube includes a peripheral flange for engaging first and second paired split jaw members each having a respective inner tapered flange on a distal end thereof for engaging the tapered flange on the bearing's inner race.Type: GrantFiled: July 9, 1997Date of Patent: July 25, 2000Inventor: Kenneth E. Shoup
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Patent number: 6035506Abstract: I have invented a device for removing a fuel injector from the engine block of an internal combustion engine that comprises a support member having a cylindrical channel passing through said support member, a threaded rod that includes a first lug nut fitted onto one end of said rod in a manner that supports said first lug nut and allows the rod to turn without turning said first lug nut, said threaded rod inserted through said channel in said support member, a second lug nut screwed over and onto the other end of said rod in a manner that prevents removal of said rod from said support member, and said first lug nut provided with internal threads capable of mating with the threads provided on a fuel injector.Type: GrantFiled: May 22, 1998Date of Patent: March 14, 2000Inventor: Joe Bowen
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Patent number: 6032554Abstract: An apparatus for quickly and efficiently removing valve packing from a valve of the type having a threaded or non-threaded valve stem. In general, the apparatus includes a sleeve adapted to be positioned about the portion of the valve stem which extends exteriorly of the packing. The sleeve is rotatably connected to a translation mechanism operable in conjunction with the exposed portion of the valve stem. Depending on the type of valve and whether the exposed portion of the valve stem is threaded or smooth and whether or not the valve stem is capable of rotation, the translation mechanism can either be threadingly mated or clamped onto the valve stem to cooperate therewith for translating the sleeve toward or away form the packing. When the translation mechanism is operated, the rotatably connected sleeve is caused to translate along the valve stem. A plurality of curved teeth depend from the sleeve in such a manner that they all curve in the same rotational direction with respect to the sleeve.Type: GrantFiled: December 2, 1998Date of Patent: March 7, 2000Inventor: Raymond J. Durant
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Patent number: 6012358Abstract: A tool for setting self-cutting undercut anchors (6) in boreholes (B) in a receiving material (G) includes anchors (6) formed of an axially extending anchor rod (7) with a conically shaped surface at a leading end of the rod widening in the setting direction, and an axially extending rotatable sleeve (9) laterally enclosing the anchor rod and which is axially displaceable against the conically shaped surface for effecting radially outward spreading of cutting tabs located at the leading end of the sleeve. The cutting tabs form an undercut (U) in the inner surface of the borehole (B) as the sleeve is rotated. The tool has a rotatable propelling part (2) for the sleeve (9) of the undercut anchor (6) and a trailing end (3) of the propelling part is arranged for insertion into a chuck of a rotary hammer drill. The propelling part (2) cooperates with a support element (4) arranged to be supported by the surface of the receiving material (G) in which the borehole (B) is formed.Type: GrantFiled: June 19, 1997Date of Patent: January 11, 2000Assignee: Hilti AktiengesellschaftInventors: Reinhard Lins, Erich Wisser, Helmut Gassner, Susanne Kossian, Rainer Kussmaul, Hermann Beck, Markus Hartmann
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Patent number: 5915741Abstract: A faucet cartridge puller assembly operable to remove a broken defective primary valve cartridge assembly from a faucet valve assembly which is utilized on a kitchen faucet valve assembly, a bath/shower faucet valve assembly, or a bathroom sink faucet valve assembly, all being used in substantially identical manner. The faucet cartridge puller assembly includes 1) a cartridge removal tool assembly adapted to be mountable within a cartridge barrel opening of a damaged primary valve cartridge assembly; and 2) a cartridge removal bolt member mountable within the cartridge removal tool assembly to achieve final axial movement of a damaged primary valve cartridge assembly being removed for replacement. The cartridge removal tool assembly includes a main removal tool body having an intermediate body section with external tap threads operable to be rotated and create threads with the damaged primary valve cartridge assembly so as to pull same longitudinally from a main valve housing.Type: GrantFiled: September 29, 1997Date of Patent: June 29, 1999Inventor: Robert C. Parker
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Patent number: 5884536Abstract: An apparatus for quickly and efficiently removing valve packing from a valve comprises a sleeve which is positionable about the valve stem which extends exteriorly of the packing. The sleeve is rotatably connected to a translation mechanism operable in conjunction with the exposed portion of the valve stem to translate the sleeve toward or away from the packing. A plurality of curved teeth depend from the sleeve in such a manner that they all curve in the same rotational direction with respect to the sleeve. When the sleeve is rotated in that rotational direction and a downward force on the sleeve is applied by operating the translating mechanism, the teeth are forced to penetrate down and into the packing material. Once embedded, the translation mechanism can be operated in the opposite direction to apply an axial removal force to the sleeve and, hence the teeth, thereby extracting the valve packing in which the teeth are embedded.Type: GrantFiled: July 28, 1997Date of Patent: March 23, 1999Inventor: Raymond J. Durant
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Patent number: 5839180Abstract: A tool for the replacement of wheel holding studs in the inner hub of a dual wheel unit, in which the stud is pulled into the hole provided for the stud without requiring removal of the inner hub. The tool includes a piston-cylinder assembly adapted to operate on fluid pressure.Type: GrantFiled: December 19, 1996Date of Patent: November 24, 1998Assignee: Hudson Enterprizes, Inc.Inventor: John E. Hochmiller
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Patent number: 5837556Abstract: A method of removing a component bonded to a substrate utilizes a fixture having a bore therethrough which is aligned with a bore in the substrate. A screw is advanced in the bore in the fixture to cause a push pin to contact the component and force the component away from the substrate.Type: GrantFiled: January 6, 1997Date of Patent: November 17, 1998Assignee: Sundstrand CorporationInventors: Dennis R. Ostendorf, Donald J. Geralds
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Patent number: 5718028Abstract: An apparatus is provided for removing a pedal crank arm from a bicycle axle end, wherein the axle end is received in a bore in the crank arm. The apparatus includes a tubular insert receivable in the bore of the crank arm and adapted to be fixed to the crank arm and a pressure screw receivable coaxially through the insert in threaded engagement therewith. The screw includes a bearing plug and a threaded member rotatably coupled to the bearing plug. The threaded member has a plug end and a drive end and a threaded outer surface portion in threaded engagement with the insert. The bearing plug has a bearing end frictionally engageable with the axle end to inhibit relative movement therebetween. The threaded member further includes coupling means on the drive end for removable coupling to an associate drive lever.Type: GrantFiled: February 26, 1996Date of Patent: February 17, 1998Assignee: Snap-on Technologies, Inc.Inventor: Mark J. Hasenberg
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Patent number: 5692282Abstract: A seal puller for removing worn seals from transmissions and like equipment. The seal puller includes a planar body having opposed top and bottom surfaces and a threaded transverse bore. A plurality are positioned adjacent the transverse bore. A bolt is threadably secured within the transverse bore. The bolt has a threaded rod portion which may be projected from the transverse bore beneath the bottom surface of the body.Type: GrantFiled: December 22, 1995Date of Patent: December 2, 1997Inventor: Frank M. Baca
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Patent number: 5682660Abstract: A puller or extractor for removing arrowheads embedded in material such as wood, comprising a rod having a front end with an internally screw threaded socket suitable for engaging the threaded boss of an arrowhead, the rod also having an external screw thread and a rear end part suitable for hand manipulation; and a sleeve having a front end cavity for accommodating the arrowhead. An internally screw threaded bore extends inwardly from a rear end of the sleeve and engages the external screw thread of the rod. The arrangement is such that the rod can be hand rotated by its rear end part to engage the front end of the rod with the boss of the arrowhead, after which the sleeve can be hand rotated in contact with the material surrounding the arrowhead, while the rod is held against rotation, to draw the arrowhead out of the material and into a withdrawn position in the cavity of the sleeve.Type: GrantFiled: July 16, 1996Date of Patent: November 4, 1997Inventor: Robert A. Hansen
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Patent number: 5621957Abstract: The present invention relates to an arrowhead extraction tool having an axial thrust mechanism coupled with a leverage plate, and a means for attaching which will couple with a lodged arrowhead embedded in an object. In operation, the present invention engages a lodged arrowhead by means of attaching, and upon rotation of axial thrust members, the leverage plate correspondingly moves in a reverse axial direction away from the object (such as a tree) for the removal of the lodged arrowhead. When the arrowhead is completely dislodged from the object, it can be disengaged from the means for attaching, and if desired, the hunter can continue to use the previously lodged arrowhead.Type: GrantFiled: July 28, 1995Date of Patent: April 22, 1997Inventors: Robert C. Herrera, Lillian M. Herrera
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Patent number: 5519929Abstract: A tool for removing a compression gasket from a pipe generally comprises a sleeve and a rod; the sleeve having a cylindrical rear end for fitting over the end of the pipe and rear threads adapted for threadably engaging the front threads of a compression nut and a front end including internal threads; the rod passing longitudinally through the sleeve and having a rear end including a bearing adapted for bearing against the end face of the pipe, a central portion including threads threadably engaged with the internal threads of the front end of the sleeve and a front end including a nut or handle for turning the rod. Screwing the rod such that it moves rearward moves the sleeve and the compression nut forward such that the rear shoulder of the compression nut bears against the rear side of the gasket and pushes the gasket forward off the end of the pipe.Type: GrantFiled: June 6, 1994Date of Patent: May 28, 1996Inventor: Wilbert C. Bleckman
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Patent number: 5416963Abstract: An arrow tip remover for removing field and target arrow tips lodged in objects comprising a sleeve having a tip end and a base end; a bolt having a tip end and a base end with the bolt disposed within the sleeve such that the tip end thereof is extendable from the tip end of the sleeve and the base end thereof is extended from the base end of the sleeve; a coupling mechanism for coupling the tip end of the bolt to an arrow tip; and an extensible mechanism for extending the base end of the bolt away from the base end of the sleeve; whereby when an arrow tip is lodged in an object, coupling the tip end of the bolt to the arrow tip with the coupling mechanism, positioning the tip end of the sleeve against the object, and extending the bolt from the sleeve with the extensible mechanism dislodges the arrow tip.Type: GrantFiled: May 11, 1994Date of Patent: May 23, 1995Inventor: Edwin J. Boynton
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Patent number: 5408734Abstract: An arrowhead extractor provides for the extraction of bladed or non-bladed arrowheads from relatively dense objects in which the arrowhead is imbedded, by securing an arrowhead extractor shaft to the arrowhead shank and threadibly withdrawing the extractor shaft and attached arrowhead from the object in which the arrowhead was imbedded. A barrel serves as a housing for the extractor shaft, and a threaded collar mates with the extractor shaft to draw the extractor shaft and attached arrowhead into the barrel portion of the device. The extractor shaft is keyed to the barrel portion and the barrel portion is seated firmly against the object in which the arrowhead is imbedded, so no rotational force is applied to the arrowhead which would otherwise cause any blades thereon to break. The device applies a steady, concentric tensile force along the shank of the arrowhead, to minimize the potential for damaging the arrowhead.Type: GrantFiled: April 14, 1994Date of Patent: April 25, 1995Inventors: Buster Mills, Leslie C. Clem
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Patent number: 5369863Abstract: A bicycle crank arm puller includes a tubular insert externally threaded for threaded engagement in an internally threaded portion of a bore in a crank arm, the other portion of the bore receiving an axle end in press-fitted engagement. The insert has an enlarged, radially outwardly extending, trilobular handle. A drive screw is threadedly engaged through the tubular insert and has a part-spherical bearing end engageable with the axle end. A square drive socket on the outer end of the drive screw receives the drive lug of an associated lever member.Type: GrantFiled: October 18, 1993Date of Patent: December 6, 1994Assignee: Snap-on IncorporatedInventors: Mark J. Hasenberg, Steven R. Wente
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Patent number: 5233741Abstract: A tool for pushing a half shaft out from an opening in the hub of a motor vehicle and for installing a hub onto the half shaft. The tool includes a housing attached to the lug bolts of the hub and having an opening for receiving a drive screw. A contactor is secured to the forward end of the screw for abutting the outer end of the shaft. As the screw is rotated to move in a forward direction, the contactor in response moves longitudinally in the forward direction, to push the shaft out from the hub. To install the shaft in the hub, a rammer is secured to the bolts of the hub. The rammer includes a head end for abutting the area of the hub circumscribing the hub opening and an impact end. Upon applying a force to the impact end, the head end pushes the hub over the shaft. A cavity is formed rearward from the head end of the rammer to receive the outer end of the shaft when it extends outward from the hub.Type: GrantFiled: May 30, 1991Date of Patent: August 10, 1993Inventor: Wade Maynard
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Patent number: 5201104Abstract: A tool (1) for extracting expansion sleeves (2) of expansion anchor assembles includes an axially extending tubular shaft with a conical external thread (1b) at its leading end to be inserted into a borehole (9) in a structural member (3). The external thread tapers inwardly to the leading end. At its trailing end the shaft (1a) has a force applying member or members. The shaft (1a) has a central axially extending through hole (1d) for laterally enclosing an anchor bolt (4). After the expansion sleeve is relieved of expanding force by hammering the anchor bolt (4) into the borehole, the external thread (1b) on the extracting tool (1) is screwed into a gap between the anchor bolt (4) and the expansion sleeve (2). External thread (1b) cuts into the inner wall (2b) of the expansion sleeve (2) as the extracting tool is screwed in and, as a result, forms a positively locked connection with the expansion sleeve.Type: GrantFiled: February 11, 1992Date of Patent: April 13, 1993Assignee: Hilti AktiengesellschaftInventors: Antonius Winkeljann, Franz Popp
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Patent number: 5170548Abstract: A cargo trailer wheel hub puller has a housing provided with a hub which loosely supports a bushing internally provided with threads. A pin passes through a hole in the hub to maintain the bushing in the hub. The bushing is provided with a collar which abuts an internal wall in the housing. A threaded rod passes in thread engagement through the bushing. The end of the rod inside the housing is provided with a contact pad which is adapted to apply a force against a vehicle axle while a torque force is applied to the other end of the rod so that the housing, which is attached to the structure of the trailer wheel hub is forced outwardly over the vehicle axle. The bushing is made from a milder steel than the rod so that, upon wearing out, it can be readily replaced by removing the pin and replacing the bushing.Type: GrantFiled: August 26, 1991Date of Patent: December 15, 1992Inventor: Esaul Ramirez
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Patent number: 5123812Abstract: A detachable apparatus is provided which facilitates rotation and handling of an alignment dowel during its installation into a steam turbine cylinder. The apparatus consists of a body having a threaded portion and a handle. The threaded portion allows the apparatus to be attached to the dowel prior to assembly. An elongated nut is threaded onto the body of the apparatus and, after being tightened down against the dowel, locks the apparatus onto the dowel. The dowel can be rotated in the cylinder by applying torque to the handle of the apparatus or by engaging a wrench onto the elongated nut.Type: GrantFiled: September 12, 1990Date of Patent: June 23, 1992Assignee: Westinghouse Electric Corp.Inventors: John C. Groenendaal, Jr., Daniel T. Brantley
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Patent number: 5119556Abstract: A tool for removing a faucet stem and cartridge from a faucet body; the stem of the type having a threaded outer end; the cartridge of the type having a central bore retaining the stem; the bore including an inward facing ledge. A cylindrical standoff sleeve has an inner end for bearing against the faucet body. A rod passes through the standoff sleeve. The rod has, on its very inner end, threads for engaging the stem threads and, above that, a device for engaging a cartridge inward facing ledge. Rod outer end includes a threaded section. A rotatable handle threads on the rod outer end and bears against the standoff sleeve outer end such that rotation of the handle moves the rod axially relative to the standoff sleeve for extracting the stem and cartridge after engagement.Type: GrantFiled: May 28, 1991Date of Patent: June 9, 1992Inventor: Wanlie P. Hseu
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Patent number: 5107882Abstract: A valve assembly includes a self-contained, packing removal means for removing the valve packing. The valve assembly includes a valve stem connected at one end to a valve, a bonnet for mounting the valve stem on a valve body having a valve seat engageable with said valve on said valve stem, and means for raising and lowering said valve stem to selectively open and close said valve. The bonnet includes a packing chamber through which an intermediate portion of the valve stem extends. The packing removal means comprises a radially displaceable lifting element disposed within the valve stem and movable to an extended position where it engages the packing assembly from underneath upon operation of the valve stem to lift the valve packing from the packing chamber.Type: GrantFiled: July 26, 1991Date of Patent: April 28, 1992Assignee: John M. HefnerInventor: James L. Carroll
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Patent number: 5075948Abstract: A tool for removing a dowel pin from an accommodating bore. The tool includes a body and a screw which on rotation of the body travels longitudinally in a threaded through bore in the body. The screw is threadibly attached to the dowel pin to pull the dowel pin from its bore as the screw travels within the tool body.Type: GrantFiled: August 8, 1990Date of Patent: December 31, 1991Inventor: Danny L. Maier
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Patent number: 5074028Abstract: An apparatus for the introduction of a cylindrical tool holder into a receiving bore, by using a feed gripping device, which holds the tool holder, comprises a gripping device, consisting of a contact plate and two clamp devices, which embrace the sides of the tool holder and are adjustable in the axial direction of the tool holder against the contact plate. The contact plate and the tool holder have contact surfaces, which oppose each other and are perpendicular to the receiving bore. The tool holder is held by the clamp devices in such a manner, so that the tool holder is slidable, to a limited extent, in the direction of the contact surface.This embodiment allows the introduction of the tool holder into the receiving bore without exactly positioning the tool holder and without canting. The tool holder aligns itself with the receiving bore due to the slidable holder.Type: GrantFiled: August 30, 1990Date of Patent: December 24, 1991Assignee: Handtmann A-Punkt Automation GmbHInventor: Karl-Heinz Strasser
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Patent number: 5054179Abstract: A water faucet valve removal and insertion tool includes a handle and a self-tapping threaded rod attached to the handle. There is a sleeve coaxial with the threaded rod and threadedly engaged therewith. The sleeve includes a rotational stop which is formed and adapted to interact with a water faucet valve. The threaded rod functions to form an internal thread in the stem of a water faucet valve to thereby attach the tool to the valve. The tool can be used to remove an installed water faucet valve or to insert a water faucet valve within a faucet housing. In either event the tool is attached to a water valve by the threaded rod and uses the rotational stop to turn an installed faucet valve or to turn a valve during insertion for proper alignment thereof.Type: GrantFiled: January 30, 1990Date of Patent: October 8, 1991Assignee: Moen IncorporatedInventor: Anthony S. Rini
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Patent number: 5033177Abstract: Apparatus and methods for the removal and installation of sleeve bearings in a camshaft bore of an engine, such as a diesel engine. The device includes an operator rod, a bearing puller in accordance with U.S. Pat. No. 4,624,041, for engaging and pulling and/or pushing a sleeve bearing in the camshaft bore, apparatus for coupling the bearing puller along a rear end portion of the rod and at selected positions along the length of the rod for engaging sleeve bearings along the camshaft bore to both pull the bearings out of operating position and to reinstall bearings in operating positions, and apparatus for coupling the rod with a front face of the engine during the pulling and pushing of sleeve bearings for removal and installation of the bearings. In some embodiments of the apparatus the rod is operated by a wrench driven nut to pull and/or push the rod. In other embodiments the rod is operated by a hydraulic jack having an open hole piston fitting on the rod.Type: GrantFiled: September 8, 1989Date of Patent: July 23, 1991Assignee: Innovative Tools & Equipment CorporationInventors: John B. Gathright, Grady C. Gathright, James J. Calloway, N. T. Rutledge
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Patent number: 4985989Abstract: An apparatus for removing a multi-contact component installed in sockets on a circuit board. The apparatus includes at least one elongated post for providing an upward force on the lower surface of the component to remove the component from the sockets. The logitudinal axis of the post is generally normal to the lower surface of the component. At least one screw is mechanically coupled to the post so that rotation of the screw causes longitudinal movement of the post.Type: GrantFiled: November 9, 1989Date of Patent: January 22, 1991Assignee: Advanced Interconnections CorporationInventor: James V. Murphy
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Patent number: 4982493Abstract: Loss of the key to a lock equipped with a lock cylinder has the result that the respective lock can be opened only with a considerable loss of time and expenditure of funds. This problem is solved in that an extraction device is provided for lock cylinders in door locks or the like. This device is characterized by a supporting bridge (1) equipped with a passage bore (4) for a self-tapping screw (5) to be inserted into the lock cylinder to be extracted so as to act as tension rod and with two lifting screws (2) arranged in the end region of the supporting bridge (1) and oriented parallel to the passage bore (4). With this device it is possible, in particular, to prevent the door from being damaged when the lock cylinder is extracted.Type: GrantFiled: February 28, 1989Date of Patent: January 8, 1991Inventor: Adalbert Wendt
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Patent number: 4929111Abstract: The tool for permitting a wrench to turn a harmonic balancer and crank shaft connected to the same. The tool employs a base which may be fixed to the harmonic balancer. The base includes an opening bored through the base to form a cavity. The cavity includes wall portions having a faceted surface and a threaded surface spaced from one another. The threaded member engages the threaded surface of the cavity and extends through the opening into engagement with the crank shaft.Type: GrantFiled: March 2, 1987Date of Patent: May 29, 1990Inventor: Giuseppe Lauritano
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Patent number: 4920625Abstract: An arrowhead extractor apparatus for removal of an arrowhead embedded in a workpiece. The arrowhead extractor includes a threaded shaft with a threaded bore at a first end and a handle at a second end. A removable insert fits into the threaded bore. The removable insert includes a threaded bore for engaging the threaded shaft of an arrowhead. A sleeve is slideable along the shaft. The sleeve has a surface for engaging the workpiece and has a central opening through which the arrowhead can pass. An attachment is provided for adjusting the surface of the sleeve to conform to an uneven workpiece surface. A nut threadedly engages the threaded portion of the shaft. The nut engages the sleeve and moves the sleeve relative to the shaft in response to rotation of the nut.Type: GrantFiled: December 5, 1988Date of Patent: May 1, 1990Inventor: Mark A. Smith
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Patent number: 4896412Abstract: An assembly method and tool is provided for installing a front driven gear (18) in a torpedo housing bore (24) in the lower gearcase (12) of a marine drive, without hammer blow impacting of the gear. An axial shaft (60) has a front end (62) inserted into the gear and an annular shoulder (66) for press-fitting the gear into the reduced diameter front portion (28) of the torpedo housing bore (24). A front aligner (68) is provided by an annular disc (69) having an outer circumference (70) loosley engaging the torpedo housing bore (24) and having a central opening (72) axially sliding over the axial shaft (60). A rear shaft aligner (76) has a threaded outer circumference (80) threadingly engaging a rear threaded portion (26) of the torpedo housing bore (24), and having a central axial opening (82) axially sliding over the rear end (64) of the axial shaft.Type: GrantFiled: February 27, 1989Date of Patent: January 30, 1990Assignee: Brunswick CorporationInventors: Randall R. Meisner, Gary C. Plonske
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Patent number: 4815188Abstract: An extractor device for extracting a connector secured in a rail comprising a body member having a chamber for receiving the body of the connector to be extracted and an actuator coupled to the body member and including a bolt which is externally operated for applying force to a shoulder portion of the connector and counter bearing force to the rail to axially extract the connector from the rail.Type: GrantFiled: November 14, 1986Date of Patent: March 28, 1989Inventor: Thomas Marks
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Patent number: 4809425Abstract: An adaptable, programmable production system for manufacturing articles in which a plurality of operations are required includes an electronically programmable robot having a controllable arm with an end effector disposed thereon. The robot is placed proximate a surface, preferably movable, to be used for the assembly of the articles. A passive, non-interactive storage tray is provided proximate the robot and within range of the extended robot arms. The end effector disposed on the distal end of the robot arm may be programmed to remove and replace a particular tool, component or any of the implement or component from the storage trays, bins or from a moving conveyor when within range and may be utilized to perform a plurality of functions, such as inserting components into the article being manufactured, or performing multiple operations thereon by exchanging tools.Type: GrantFiled: May 25, 1988Date of Patent: March 7, 1989Assignee: Monforte Robotics, Inc.Inventor: Mathew L. Monforte
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Patent number: 4734972Abstract: The tube plug removal machine removes any type of tube plug by drilling into a plug portion with a tap drill bit, engaging that plug portion with a threaded section of the tap drill bit after the drilled hole has been threaded by a tapping section thereof, and removing a portion of the tube holding the plug in the tube with a counterbore drill bit mounted concentrically about the tap drill bit. A trip pin and trip spline enable the tap drill bit to be automatically disengaged from the motor once the tap drill bit has been threaded into engagement with the plug. The conterbore drill bit is thereafter self-centered with respect to the tube and plug about the now stationary tap drill bit. After a portion of the plug has been removed by the counterbore drill bit, pulling on the tap drill bit will remove the remaining plug portion from the tube.Type: GrantFiled: January 15, 1986Date of Patent: April 5, 1988Assignee: Westinghouse Electric Corp.Inventor: Phillip J. Hawkins
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Patent number: 4724608Abstract: A puller for spherical bushings comprises an inner puller body having a cylindrical outer surface so that it can be inserted into the bore of the bushing with a lip at one end for engaging behind the bushing. A wedge member actuated by an elongate bolt forces the lip outwardly into engagement. A screw threaded portion of the outer surface of the puller body carries a nut which can drive a sleeve shaped outer puller axially along the inner puller body to engage an outer member carrying the bushing. An installing tool is also provided including a cylindrical portion for insertion into the bore of a bushing and a shoulder at the end of that portion for engaging the end surface of the bushing so that hammer blows applied to one end of the tool force the bushing into place.Type: GrantFiled: November 20, 1986Date of Patent: February 16, 1988Inventor: Ronald J. W. Parrott