Pivotal Arms Patents (Class 29/261)
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Publication number: 20120066878Abstract: A tool for extracting a pin inserted in a component bore extending into a pin receiving component, the tool comprising: a pin gripping element configurable between a released configuration in which the pin and the pin gripping element are movable relative to each other and a gripping configuration in which the pin gripping element grips the pin; a base element for abutting against the pin receiving component; and a gripping element mount mounting the pin gripping element to the base element, the gripping element mount being configurable between a first configuration and a second configuration, wherein, in the first configuration, the pin gripping element is substantially adjacent to the base element, and in the second configuration, the pin gripping element is further away from the base element than in the first configuration. An actuator selectively moves the gripping element mount between the first and second configurations.Type: ApplicationFiled: September 15, 2011Publication date: March 22, 2012Inventor: Laurier Larouche
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Patent number: 8127581Abstract: A tool for correcting the twist angle of a turbine blade includes an adaptor configured to engage a tip of the blade, a socket drive configured to engage the adaptor, a first handle connected to a first side of the socket drive, a second handle connected to a second side of the socket drive, and a torque gauge configured to measure a load applied to the blade.Type: GrantFiled: April 15, 2008Date of Patent: March 6, 2012Assignee: United Technologies CorporationInventors: Ephraim C. Davis, Bryan G. Parrette, Larry D. Cronin
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Publication number: 20120036690Abstract: A bearing dismounting device includes a body, a rod, several clamping arms, a tightening element, and an adjusting element. Each of the clamping arms is pivotally installed around the body. The center of the body has a through hole for the rod to mount therein. One end of the rod has a positioning part, and its other end has an operating part. Each of the clamping arms extends a buckling part. The central position on the outer side of each of the clamping arms has an accommodating part. The tightening element surrounds the accommodating parts of the clamping arms. Both ends of the tightening element have an adjusting element, respectively, for urging against the tightening element, thereby positioning the clamping arms.Type: ApplicationFiled: August 12, 2010Publication date: February 16, 2012Applicant: MUELLER-KUEPS, L.P.Inventor: MICHAEL MUELLER
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Patent number: 8087137Abstract: A flat clamping hand tool structure includes a left clamping seat having one side with a left fixing portion facing a right fixing portion on one side of a right clamping seat. The first and second fixing members move up and down in left and right mounting slots of the left and right clamping seats by left and right swing plates which are pivotally connected with upper and lower holders. The left and right clamping seats are guided to move by guiding blocks of the upper and lower holders to slide along guiding grooves of the left and right clamping seats. Left and the right arms pivot together through a first pivot member. Left and right limit portions of the left and right swing plates mesh with each other so as to drive the left and right clamping seats to carry out a clamping motion.Type: GrantFiled: December 10, 2009Date of Patent: January 3, 2012Inventor: Tian Shoei Wang
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Patent number: 7908728Abstract: An improved system and method for removing extrusion screw elements includes a puller assembly for removing at least one screw element from a screw shaft of a screw-type extrusion machine. The at least one screw element includes a sleeve portion received annularly about the screw shaft and at least one flute extending radially outward from the sleeve portion. The puller assembly includes a body having a sleeve portion with an inner diameter sufficiently sized for axially fitting over the at least one screw element on the screw shaft. At least one engaging element is removably secured to the body for enabling the body to be axially installed on the at least one screw element when the at least one engaging element is removed from the body and axially locking the body on the at least one screw element when the at least one engaging element is installed in the body.Type: GrantFiled: January 11, 2007Date of Patent: March 22, 2011Inventor: Ismael Marcial, Jr.
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Patent number: 7770277Abstract: A pulling tool having a support member, a first surface and a second surface. The first surface including a slot positioned thereon and the second surface include a recess in communication with the slot. A ledge is formed where the recess and the slot intersect. At least one rod is disposed in the slot and recess and includes a portion engageable with the ledge.Type: GrantFiled: September 10, 2004Date of Patent: August 10, 2010Assignee: Snap-on IncorporatedInventor: Gerald A. Wridt
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Patent number: 7707700Abstract: An exemplary embodiment of the tool comprises an elongated shaft having a longitudinal axis and a first portion with a first end and a second portion with a second end, the second portion having an elongated aperture or slot. The tool includes a pull line attachment assembly coupled to the elongated shaft, the pull line attachment assembly being configured to couple to a pull line or strap. The tool also provides a self-orienting pull arm pivotally coupled within the elongated shaft and being configured to automatically latch and be concealed within said elongated shaft. The pull arm is configured to automatically orient to a deployed state under a force of gravity after the elongated shaft has been inserted through a barrier. The pull arm, when in the deployed state, is configured to apply pressure to the barrier to breach the barrier. Methods are described for using the tool to breach a barrier or ballistic material of an enclosed chamber.Type: GrantFiled: July 28, 2009Date of Patent: May 4, 2010Inventor: TroyHunter Lapetina
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Patent number: 7669306Abstract: The invention disclosed includes a gear puller system in which a vibrating means is used to loosen the target gear in a machine making it easier to remove or pull the gear from a housing, such as a hub. In one embodiment, the vibrator transmits vibrations along the shaft of the gear puller. In second vibration, the vibrating means transmits vibrations through the machine to the gear puller.Type: GrantFiled: December 4, 2007Date of Patent: March 2, 2010Inventor: Waldemar Palka
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Patent number: 7653975Abstract: A clamping apparatus of a puller includes a first clamping element, two second clamping elements, four pivoting elements and three adjusting rod modules. Each pivoting element is pivotally coupled to both ends of the first clamping element and an end of each second clamping element corresponding to the first clamping element. Another end of each second clamping element has a transverse penetrating hole. One of the adjusting rod modules is passed through a penetrating hole of each second clamping element, and the other two adjusting rod modules are passed through the penetrating hole of each pivoting element, so that the adjusting rod modules are arranged substantially in a triangular shape. The pivoting element is installed between the clamping elements for pivotally turning each adjusting rod module and automatically guiding to the central position and increasing the range between the clamping elements for mounting and installing a bearing easily.Type: GrantFiled: March 21, 2008Date of Patent: February 2, 2010Inventor: Chih Kuo Hu
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Patent number: 7496999Abstract: A valve nut removal and replacement system including a plurality of associated tools and methods used for above ground access to, replacement of, and maintenance of worn, misshaped, abused or otherwise faulty valve nuts located at a subsurface location. A system is provided including tool components, many of which can be configured for multiple uses. The system provides for the cleaning and removal of a retainer nut, for the removal of a damaged valve nut, and for the installation and securing of a new valve nut from a remote above ground location.Type: GrantFiled: April 5, 2007Date of Patent: March 3, 2009Inventor: Randall P. Robarge
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Patent number: 7356926Abstract: A compact removal feature comprises a plurality of recesses, such as radius slots, on an inner diameter (ID) of a bearing inner ring. The removal tool can engage the removal feature and remove the entire bearing assembly without damage to the parts. The placement of the removal feature on the bearing inner ring ID allows for a reduction in inner ring length (and weight) while maintaining bearing assembly integrity.Type: GrantFiled: December 18, 2003Date of Patent: April 15, 2008Assignee: Honeywell International, Inc.Inventors: Eric B. Bridges, Cristopher Frost
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Patent number: 7322087Abstract: A bearing installing and removing tool includes a driving unit and a link unit, wherein the driving unit has a threaded rod on which an adjusting member of a connection frame is threadedly mounted. The connection frame has a guide rail and a pivotable portion so as to be connected with different types of pull assemblies or link units to have different functions. A pull unit may be connected with the threaded rod so as to remove a bearing located in a tubular shaft. A connection unit may be connected with the threaded rod and includes a connection piece with a bowl-shaped space so as to be connected with a bowl-shaped head of a bolt such that the bolt provides an adjusting function to mount a bearing to a shaft whole improve poor eccentricity between the bearing and the shaft is existed.Type: GrantFiled: February 23, 2007Date of Patent: January 29, 2008Inventor: Chih Kuo Hu
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Patent number: 7250016Abstract: An apparatus for manually uncoupling a V-belt drive from an active power source. The apparatus is mounted on the end of a pulley of the V-belt drive and is comprised of a tapered member connected to the output shaft of the power source for engaging in holding relationship the pulley of said V-belt drive; a retractor member attached to the pulley; and a toggle linkage for displacing the retractor member relative to the tapered member to disengage the pulley from the tapered member. The toggle linkage includes a first pair of diverging toggle links and a second pair of crossing toggle links having end portions pivotally connected to end portions of said first pair of toggle links. The second pair of toggle links is mounted in a sleeve for rotation about an axis having a fixed relationship to the tapered member.Type: GrantFiled: January 2, 2004Date of Patent: July 31, 2007Inventor: Douglas H. Petit
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Patent number: 7213317Abstract: A shaft pushing device includes a driving mechanism with a threaded tube and a push rod movably extends through the threaded tube. A grasp mechanism has a first ring threadedly mounted to the threaded tube and a plurality of pawls are pivotably connected to the first ring. An adjusting mechanism has an adjusting nut threadedly mounted to the threaded tube and located between the first ring and the distal end of the push rod. A second ring is mounted to the adjusting nut and a plurality of stretch rods are pivotably connected between the pawls and the second ring. The push rod is driven to extend from the threaded tube to push against an end of the shaft and the pawls are pivoted to grasp the gear mounted to the shaft by operating the adjusting nut. The shaft is disengaged from the gear by the push rod.Type: GrantFiled: March 11, 2005Date of Patent: May 8, 2007Inventor: Chih Kuo Hu
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Patent number: 7117573Abstract: A puller allowing easy and readily replacement of the jaws within a confined area is comprised of a threaded rod, a drive mechanism, an activation mechanism, and multiple jaws; provided with an auxiliary connecting arm and an auxiliary fixing arm respectively to a connecting base and a bolting base for a connecting arm extending from a connecting base and a bolting base; any jaw being retractable to be respectively connected to the auxiliary connecting arm and the auxiliary fixing arm; a winged nut being turned to draw the auxiliary connecting arm and its corresponding connecting arm, thus to grab a work piece by its circumference while a centering end of a threaded rod holding against the axis of the work piece to remove it.Type: GrantFiled: May 11, 2005Date of Patent: October 10, 2006Inventor: Chih Kuo Hu
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Patent number: 7047609Abstract: An extractor structure including a thread rod, a driving unit and an activating unit. A differential nut is rotatably disposed in the driving unit. The thread rod is screwed through the differential nut. The driving unit has several extension arms. The activating unit is disposed under the driving unit and includes a threaded seat and a connecting seat. The connecting seat is pivotally connected with the extension arms of the driving unit. The thread rod is screwed through the threaded seat. The threaded seat has several outward extending fixing arms interlaced with the extension arms of the driving unit. An outer end of each fixing arm is pivotally connected with a claw. An activating arm is pivotally connected with a middle section of the claw and pivotally connected with each connecting arm of the connecting seat.Type: GrantFiled: November 30, 2004Date of Patent: May 23, 2006Inventors: Chih Kuo Hu, Sen Jung Liu
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Patent number: 6935004Abstract: The invention relates to an improved propellor puller device for pulling a propellor hub from a marine engine. The propellor puller has a hub base member that has a central axis and a multiplicity of puller arms extending radially from the central axis. A threaded bolt threadably engages the hub base member so that rotation of the bolt is translated into axial displacement of the hub base member. Tension members composed of a series of chain links are slidably carried by a respective puller arm and attachable by a hook to a propellor blade. As tension in the tension members increases, the tension members will slide radially inwardly towards the central axis.Type: GrantFiled: August 28, 2003Date of Patent: August 30, 2005Inventors: George Terrill, Mark C. Jones
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Patent number: 6895646Abstract: A hydraulic puller includes a hydraulic cylinder, a pump, an oil tank, and a clamping device. The clamping device includes a support seat, a plurality of pivot plates, a plurality of connecting plates, a plurality of claws, and an operation plate. Thus, the operation plate can be rotated by the user's hand to rotate and lift the clamping device so as to control operation of each of the claws, thereby facilitating the user operating the hydraulic puller.Type: GrantFiled: October 9, 2003Date of Patent: May 24, 2005Inventor: Wen-Cheng Houg
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Patent number: 6832426Abstract: A device for decoupling an inner part and an outer part of a constant velocity joint from each other has a fastening element for gripping the inner part, an annular part placed in the end of the outer part of the joint and a nut that fits to the thread in the end of the outer part, which nut is wider than the hole in the annular part and the parts can be decoupled in a simple and safe way and without breaking the parts.Type: GrantFiled: May 28, 2002Date of Patent: December 21, 2004Assignee: Tuomas-Trading OyInventor: Asko Ojavuo
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Patent number: 6817075Abstract: An apparatus for mounting and/or dismounting hoses onto or from socket pieces (or operations of such a type) comprising a drive producing a linear driving motion including a power supply unit and a control unit for controlling the driving motion, a feed member adapted to be linearly driven by the drive, pivotally supported inserted plier halves the inner lever ends of which facing away from a socket piece are engaged by the feed member in order to pivot the inserted plier halves with their jaws against a hose disposed therebetween during a forward motion of the feed member, a bearing part supporting the inserted plier halves and adapted to be displaced in the direction of the feed member including a stop, and a counterstop connected to the feed member which, after a phase of the forward motion of the feed member required to clamp the hose in place between the jaws, hits upon the stop (13V, 13VI) while carrying along the bearing part through the remaining phase of the forward motion in order to advance the insType: GrantFiled: April 19, 2002Date of Patent: November 16, 2004Inventor: Michael Kretzschmar
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Patent number: 6665918Abstract: A tool for removal of a pulley from a shaft includes articulated arms mounted on a hub with a thrust bolt provided to drive the hub and attached arms outwardly from a shaft on which the pulley is mounted. The arms comprise jaw members which in combination with wedge members ensure maintenance of the jaw members in mechanical contact with the pulley to thereby effect its removal from a shaft.Type: GrantFiled: February 18, 2003Date of Patent: December 23, 2003Assignee: Lisle CorporationInventor: Danny Williams
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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: 6581261Abstract: A large size clamping device for detaching a bearing having three cambered base blocks is disclosed. An inner edge of each base block is formed with a thinner top cambered surface. Each side of the base block has a penetrating connecting hole. Three connecting rods are used to connect the three base blocks by each connecting rod passing through the connecting holes of two respective base blocks. Thereby, an area confined by the base blocks is adjusted by adjusting the connections of the base blocks and the connecting rods. Thus the clamping device is suitable for bearings of different sizes. Moreover, the forces between the bearing to be pulled out and the clamping devices are more uniform so that the bearing will not be harmed.Type: GrantFiled: June 10, 2002Date of Patent: June 24, 2003Inventor: Yu-Lin Chen
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Patent number: 6581265Abstract: An apparatus for the repair or maintenance of a vehicle is provided which facilitates the removal of a wheel, wheel rim, brake rotor, brake drum or the like, when these become seized or fused onto the wheel hub of the vehicle. The wheel pulling apparatus provides a pull plate to pull on, for example, a brake drum, and a push plate which acts to directly or indirectly push on the wheel studs of the vehicle. A simple, easy to use wheel pulling apparatus is provided.Type: GrantFiled: August 27, 2001Date of Patent: June 24, 2003Inventor: Eli Sawaya
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Patent number: 6427336Abstract: A clamping member disassembling device is disclosed in which a clamping member comprising a head portion and a body portion and clamped to base metals, with the body portion being inserted into clamping holes formed in the base metals and the head portion being in contact with a peripheral edge portion of the clamping hole in one of the base metals, is disassembled from the base metals. The disassembling device comprises a cutting means for cutting off the body portion of the clamping member in a direction nearly perpendicular to an axial direction of the body portion, a moving means which causes the cutting means to advance and retreat in the axial direction of the body portion, and a motion changing means which actuates the cutting means in a direction nearly perpendicular to the axial direction of the body portion with an advancing or retreating motion of the cutting means which motion is induced by the moving means.Type: GrantFiled: November 29, 1999Date of Patent: August 6, 2002Assignee: Ricoh Company, Ltd.Inventors: Takao Kojima, Yuichi Jibiki
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Patent number: 6266860Abstract: A puller useful in removing a pulley assembly from a crankshaft is provided by the present invention. The puller is particularly useful for removing a multiple pulley assembly where the pulleys may be damaged as a result of too much force on the outer part of the pulley. The puller is easily mounted in very tight locations and applies a force to the pulley assembly along the hub of the pulley so as not to damage the pulleys.Type: GrantFiled: June 19, 2000Date of Patent: July 31, 2001Inventor: Patrick J. Kiebler
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Patent number: 6266861Abstract: A device for mounting a bearing onto a shaft includes a tube connected to the shaft and having an open end. Three grooves are defined longitudinally in the tube and communicate with the open end. A pushing member has three wings extending radially outward therefrom and the wings are movably received in the grooves. Each of the wings has a rod slidably and perpendicularly connected thereto so as to contact a surface of the bearing. A hydraulic pushing rod pushes the pushing member toward the shaft so that the bearing is moved on the shaft.Type: GrantFiled: December 13, 1999Date of Patent: July 31, 2001Inventor: Yu-Lin Chen
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Patent number: 6223410Abstract: A pulling device for removing gears, bearings, sprockets, etc. from the shafts on which they are mounted is disclosed. The pulling device comprises a housing, a laterally movable shaft received within the housing, and a pressure transmitting member interposed between the laterally movable shaft and the housing. The pressure transmitting member is rotatable by means of handles attached to a torque ring mounted on the end thereof. By rotating the pressure transmitting member, the laterally movable shaft, which does not rotate, moves laterally with respect to the pressure transmitting member within the housing of the pulling device. Jaws are attached at substantially equal angular increments to a collar which surrounds the housing and the ends of the jaws engage the underside of the part or component being removed.Type: GrantFiled: October 12, 1999Date of Patent: May 1, 2001Inventor: John S. Sroka
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Patent number: 6023828Abstract: By inserting a male screw for fixing a ratchet claw into a nut placed on an insert core and the like to prevent rotation, it is possible to eliminate additional screw processing on the insert core, to increase magnetic resistance between a magnet and the insert core provided with the former, to concentrate irradiation of magnetic flux from the second magnet pole toward outside and to fix the magnet and the second magnet pole onto the insert core with screws. Further, by tapering an axial hole of the rotor, it is possible to easily and accurately attach the insert core or the rotor to a crankshaft. Furthermore, by inserting a removal parts of a removal tool into a perforation hole of the rotor, it is possible to realize quick and simple removal of the rotor from the crankshaft.Type: GrantFiled: June 26, 1997Date of Patent: February 15, 2000Assignee: Oppama Industry Co., Ltd.Inventors: Masao Iwata, Yoshiki Kitamura, Norio Kawai
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Patent number: 5983474Abstract: This invention relates to an improved puller, wherein notch and slot means are arranged for adjustably engaging a mating slot and shoulder of gripping jaws to provide improved resistance to wear and misalignment through use, and reversible jaws enable adaption of use to removal of seals and the like from housings.Type: GrantFiled: June 2, 1997Date of Patent: November 16, 1999Inventor: Rudolf Koppe
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Patent number: 5909911Abstract: A device for stabilizing a disassembly device during use is disclosed. The disassembly device has a plurality of engaging/attaching members for gripping a workpiece and a cross member interconnecting the engaging/attaching members. In accordance with the present invention, the stabilizer device has a main shaft, at one end of which a handle is disposed and at another end of which a pair of fingers is disposed. The stabilizer device is used to grip the cross member of the disassembly device at two points along a length of the cross member so as to stabilize the disassembly device and the workpiece while a rotating motion or force is imparted to the disassembly device in order to perform the disassembly operation.Type: GrantFiled: May 2, 1996Date of Patent: June 8, 1999Inventor: James A. Long
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Patent number: 5896639Abstract: A hydraulic puller for removing an element from an axle, including a hydraulic pipe, a pawl assembly mounted on the hydraulic pipe and controlled to catch the element to be removed from an axle, a movable rod movable fastened to the hydraulic pipe, and an oil tank assembly connected to the hydraulic pipe by a connecting pipe. The oil tank assembly comprising an air permeable oil container filled with a hydraulic oil and covered by a casing, and the casing having two air holes at two opposite locations. The hydraulic puller further having a hand lever, a piston rod moved by the hand lever to force the hydraulic oil out of the oil container late the hydraulic pipe to move the movable rod out of the hydraulic pipe, and spring means fastened to the hydraulic pipe to automatically move the movable rod back to its former position.Type: GrantFiled: August 17, 1995Date of Patent: April 27, 1999Inventor: Jui-Nien Chen
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Patent number: 5887328Abstract: A puller device for disassembling parts having a plurality of arms provided with claws to grip the parts. The arms are rotatably connected to a hub. A pushing member extends through the hub and engages the parts. A slidable positioning member located on an exterior of the hub and extending away from the hub in a radial direction moves the arms between a free position and a gripping position. The hub and slidable positioning member each have a handle bar that can be gripped by a user. The arms move towards the free position when the handle bar of the slidable positioning member is urged towards the handle bar of the hub.Type: GrantFiled: December 17, 1997Date of Patent: March 30, 1999Assignee: SKR Maintenance Products B.V.Inventors: Per Uno Magnus Rydin, Arjan Van Os
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Patent number: 5842261Abstract: A semiconductor package extractor is provided that extracts a semiconductor package from a socket on a circuit board. The extractor has an outer base and an inner base which are attached via a bolt. Turning the bolt raises or lowers the inner base. The inner base has an inner frame with multiple levers that swing freely inward and outward attached to the inner frame. The levers swing outward to surround the semiconductor package as the inner base is lowered onto the inner base and underlying circuit board. The levers swing inward to securely grip the semiconductor package as the outer base is lowered onto the circuit board. As the bolt is turned, the inner base, gripping the semiconductor package, is raised, removing the semiconductor package from the circuit board.Type: GrantFiled: November 15, 1996Date of Patent: December 1, 1998Assignee: Advanced Micro Devices, Inc.Inventor: Daniel C. Ortiz
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Patent number: 5819386Abstract: This invention relates to an improved flexible impeller puller, wherein notch and slot means are arranged for adjustably engaging a mating slot and shoulder of gripping jaws to provide improved resistance to wear and misalignment through use, and engaging teeth of the jaws are arranged at an angle to the centerline to assure center hub removal with minimal damage to the hub.Type: GrantFiled: March 3, 1997Date of Patent: October 13, 1998Inventor: Rudolf Koppe
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Patent number: 5813104Abstract: A frusto-conical thread protector on the pin end portion of a sucker rod is removed by a cylindrical housing axially surrounding, at one end portion, the thread protector and the adjacent end portion of the sucker rod. Stop means diametrically mounted on the periphery of the tubular housing at the sucker rod end portion projects inwardly of the housing wall in confronting relation to abut the large diameter open end of the thread protector for removing the thread protector from the sucker rod in response to a plunger axially projecting into the housing opposite the sucker rod and forcibly moved longitudinally to pierce the wall at the small end of the thread protector and axially abut the adjacent end of the sucker rod and separate the thread protector from the sucker rod.Type: GrantFiled: December 24, 1996Date of Patent: September 29, 1998Inventor: Thomas W. Quick
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Patent number: 5735033Abstract: A puller comprising a hub having at least three load blocks disposed and retained thereabout by upper and lower end caps is presented. The load blocks are retained about the hub by the end caps so as to allow individual positioning of the load blocks at any circumferential position about the hub. A pressure bolt or screw extends through the center of the hub for providing the pulling force. The grippers or jaws are attached at the respective load blocks. In a preferred embodiment, the grippers comprises an external gripping member and an internal gripping member interconnected by a pair of load linking members. The gripper members each including respective article engaging surfaces or hooks.Type: GrantFiled: June 7, 1995Date of Patent: April 7, 1998Inventor: Martin Marugg
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Patent number: 5606788Abstract: An improved tool for pulling off a rotor of a motor from a shaft or a fan from a shaft, which improved tool is provided with hooked arms that are releasably but securely held at one end in the housing, without the use of retaining clips, so that the arms do not fall off during use or become lost, and so that they do not interfere with the use of the tool when using the securing bolts for pulling off a rotor. The housing of the improved tool of the invention is circular in shape, and in a first version, is provided with a plurality of equally-spaced holes about its circumference, which holes received the hooked ends of the hooked arms, so that various configurations of hooked arms may be provided to best suit the configuration of vanes and type of fan being pulled off a shaft.Type: GrantFiled: May 31, 1995Date of Patent: March 4, 1997Inventors: Michael Rubino, Michael Berg
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Patent number: 5557833Abstract: A reversible pulling apparatus including multiple reversible jaw members pivotally attached to a first yoke having a pressure screw extending therethrough. A second yoke is axially extendable from the first yoke and includes the cam members coactive with a cam surface defined at the outside ends of the jaw members to positively engage the jaw members at a fixed diameter of the part being subjected to an inside or outside pull.Type: GrantFiled: February 22, 1995Date of Patent: September 24, 1996Assignee: Lisle CorporationInventor: James L. Pool
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Patent number: 5544402Abstract: An axle puller comprising a main body having circumferentially spaced bores, each bore corresponding to a lug bolt on the hub, a plurality of elongated pushrods adjustably located within the bores, and hook-arms pivotally mounted on the main body to engage the axle plate. The pushrods engage a corresponding lug bolt during application of the axle puller, and in conjunction with the pushrods apply an extraction force to the axle plate around each of the lug bolts, thus biasing the main body axially away from the axle plate. The hook-arms snap-fit onto the axle plate when the axle puller is mounted onto the wheel assembly. Stop bolts fix the hook-arms when engaged with the axle plate to keep the hook-arms from slipping off the axle plate. A spring-biased center-driver is provided to impact the axle plate after the extraction force has been applied.Type: GrantFiled: January 17, 1995Date of Patent: August 13, 1996Inventor: William B. O'Neil
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Patent number: 5479688Abstract: An improved tool for pulling off a rotor of a motor from a shaft or a fan from a shaft, which improved tool is provided with hooked arms that are releasably but securely held at one end in the housing, without the use of retaining clips, so that the arms do not fall off during use or become lost, and so that they do not interfere with the use of the tool when using the securing bolts for pulling off a rotor. The housing of the improved tool of the invention is circular in shape, and in a first version, is provided with a plurality of equally-spaced holes about its circumference, which holes received the hooked ends of the hooked arms, so that various configurations of hooked arms may be provided to best suit the configuration of vanes and type of fan being pulled off a shaft.Type: GrantFiled: March 29, 1994Date of Patent: January 2, 1996Assignee: Sensible Products, Inc.Inventors: Michael Rubino, Michael Berg
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Patent number: 5419027Abstract: A puller for removing an object from a shaft including first and second collars movable relative to one another along an axis, at least two circumferentially spaced damping jaws pivotally supported at one end to the first collar and having means at the other end for grasping the object, at least two circumferentially spaced links, each of the links being pivotally supported at one end to the second collar and pivotally supported at the other end to an associated clamping jaw, and a drive structure for moving the collars together along the axis away from the shaft. A hydraulic cylinder drive axially adjusts the collars relative to one another to control movement of the clamping jaws. The clamping jaws may include bidirectional claws for selective use, with the collars and links being positionable to permit the axial spacing from the first collar to be selectively less than or greater than the axial spacing between the collars.Type: GrantFiled: May 19, 1993Date of Patent: May 30, 1995Assignee: Power Team Div. of SPX CorporationInventors: Thomas J. McPeak, James C. Solie, John R. Loquai
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Patent number: 5390404Abstract: An improved tool for pulling off a rotor of a motor from a shaft or a fan from a shaft, which improved tool is provided with hooked arms that are releasably but securely held at one end in the housing, without the use of retaining clips, so that the arms do not fall off during use or become lost, and so that they do not interfere with the use of the tool when using the securing bolts for pulling off a rotor. The hooked arms of the invention are also hexagonal shaped, and securing bolts are provided with hexagonal-shaped recesses in their heads, so that the hooked arms may themselves be used for rotating the securing bolts when pulling off a rotor of a motor from a shaft.Type: GrantFiled: May 12, 1993Date of Patent: February 21, 1995Assignee: Sensible Products, Inc.Inventors: Michael Rubino, Michael Berg, Michael Rubino, Carol Rubino
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Patent number: 5349736Abstract: A tool for pulling off the clutch mechanism of one specific make of washing machine. The tool has main mounting plate from each end off which passes therethrough an elongated screw. The mounting plate has an enlarged central hole for passing therethrough a large tubular member which is threaded on its outer circumferential surface, and which is hollow in it interior. The tubular member receives in its hollow interior the tubular sleeve of the clutch mechanism when the tool of the invention is used for pulling the clutch mechanism off from the drive shaft. At the bottom of tubular member, there is provided a larger-diameter head, having a pivotal latch. After placing the tubular member over the tubular sleeve, the pivotal latch is closed over cutout portion at the lower portion of the tubular sleeve, whereby the latch is thus in locked engagement with the tubular sleeve but free of contact with the inner drive shaft.Type: GrantFiled: February 26, 1993Date of Patent: September 27, 1994Assignee: Hart to Sensible Products, Inc.Inventors: Michael Rubino, John Hart
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Patent number: 5341553Abstract: An impeller puller to be utilized to remove flexible impellers of varying dimensions from a shaft within a liquid pump, the impeller puller including a linkage head having an axial bore, and a pair of clamp members oppositely and hingedly disposed along opposite sides of the linkage head, each of the clamp members including at least one adjustably and removably positionable gripping jaw thereon and being movable between a retracted and a clamping position such that upon the turning of the screw member disposed within said axial bore of said linkage head, the screw will contact the shaft within the liquid pump and the linkage head will move away from the shaft pulling the impeller therewith from the shaft.Type: GrantFiled: September 24, 1993Date of Patent: August 30, 1994Inventor: Ludwig Herzhauser
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Patent number: 5337470Abstract: A nozzle extraction tool for removing a worn nozzle insert from a steelmaking vessel. The nozzle extraction tool including a support frame, a gripper assembly, and a drive piston for applying a force to the gripper assembly. The gripper assembly includes pivotal gripper arms and a rod assembly for pivoting and rotating the gripper assembly 360.degree. about the longitudinal axis of the worn nozzle insert. The rod assembly enables the gripper arms to be securely seated against the uneven surfaces of the worn discharge bore extending through the nozzle insert.Type: GrantFiled: April 26, 1993Date of Patent: August 16, 1994Assignee: Bethlehem Steel CorporationInventors: John P. Hoffman, Alvin M. Nestler, Edward T. Witek, Donald J. Idstein
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Patent number: 5321875Abstract: A centering tool for coaxially aligning a well block with a discharge bore of a steelmaking vessel, the centering tool comprising a support frame and a cluster of pivotable centering arms. Each centering arm includes a wedge shaped portion having a first edge adapted to engage a drive means, and a second edge having a first surface adapted to engage the wall of a bore extending through the well block, and a second surface adapted to engage the wall of the discharge bore of the steelmaking vessel. The drive means includes an expansion plug for engaging and pivoting centering arms positioned within the bore of the well block.Type: GrantFiled: June 22, 1993Date of Patent: June 21, 1994Assignee: Bethlehem Steel CorporationInventors: John P. Hoffman, Alvin M. Nestler, Donald J. Idstein
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Patent number: 5261149Abstract: A screw puller is operative in communication with a live center member, having a cylindrical housing, including a bottom wall with a spaced top wall annular flange, with a rotary hub mounted within the housing, with the rotary hub arranged to minimize frictional inter-relationship of the screw puller threaded shaft, with a workpiece to be drawn by the puller structure.Type: GrantFiled: November 9, 1992Date of Patent: November 16, 1993Inventor: Eric E. Sutton
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Patent number: 5257445Abstract: A bearing and pillow-block puller has a handle (43, 45, 50) attachable to a threaded base (3). Proximal ends of optionally puller rods (18), hook arms (35), puller chains (31) or puller straps (39) are attachable to tandem plates (5) on the threaded base (3). Distal ends of the puller rods (18), hook arms (35), puller chain (31) or puller straps (39) are attachable to a yoke plate (21) that is adaptable with race adapter plates (37) for attachment to different sizes of bearings and pillow blocks (24, 26). A puller point (13) of a puller bolt (1) is buttressed against ends (30) of a shaft (23) or against adapters (53, 56) at ends of shafts (23). The bearings or pillow blocks (24, 26) are pulled from the shafts (23) by pulling the bearings or pillow blocks (24) from the threaded base (3).Type: GrantFiled: May 29, 1992Date of Patent: November 2, 1993Inventor: George M. Mayberry
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Patent number: 5251368Abstract: This invention relates to an internal locking puller device which comprises three pivotally mounted jaws, a cam ring which engageably slides along the jaws for camming together and apart the jaws for locking about bushings, bearings, seals, and the like, a disk-like collar to which the jaws are pivotally mounted, a T handle for adjustably controlling the movement of the cam ring, a slide rod, and a slide hammer slidably and reciprocally mounted on said slide rod for providing impacting force to remove the bushings, bearings, seals, and the like. The jaws have arcuate rearward portions with a pair of arcuate rails integrally extending from and along under edges thereof. The rails conform to the configuration of the arcurate rearward portions of the jaws so as to provide uniform locking strength across the jaws to virtually eliminate slippage of the jaws from internally about bushings, bearings, seals, and the like.Type: GrantFiled: November 2, 1992Date of Patent: October 12, 1993Inventors: Dean S. Somerville, Mitchel D. Trostad