Universal Or Flexible Drive Connection To Rotate Tool Patents (Class 408/127)
  • Patent number: 10369013
    Abstract: A surgical instrument for operating hip joint osteoarthritis in a human patient is provided. The hip joint comprises an acetabulum, being a part of the pelvic bone, and a caput femur, being the proximal part of the femoral bone. The surgical instrument is adapted to assist in the operating of the hip joint osteoarthritis from the abdominal side of the pelvic bone of said human patient.
    Type: Grant
    Filed: January 25, 2016
    Date of Patent: August 6, 2019
    Inventor: Peter Forsell
  • Patent number: 10226259
    Abstract: A surgical pelvic drill for operating hip osteoarthritis adapted to create a hole in the pelvic bone of a human patient is provided. The pelvic drill is adapted to create a through-going hole placed in the acetabulum area from the abdominal side of the pelvic bone of the human patient. The pelvic drill comprises: a driving member, a bone contacting organ in connection with said driving member, an operating device adapted to operate said driving member. The bone contacting organ is adapted to create a hole in the acetabulum area starting from the abdominal side of the pelvic bone through repetitive or continuous movement. A surgical and a laparoscopic/arthroscopic method of using said pelvic drill is further provided.
    Type: Grant
    Filed: January 25, 2016
    Date of Patent: March 12, 2019
    Inventor: Peter Forsell
  • Patent number: 9993351
    Abstract: The present invention features new methods, apparatuses and devices for fixing adjacent bone segments, segments of a bony structure and adjacent vertebrate of a spine. The methods, apparatuses and devices utilize a new apparatus for forming a channel in a surface of the bone or bony structure segments or adjacent vertebra or a channel submerged within the bone or bony structure segments or adjacent vertebra. In more particular embodiments such apparatuses and methods including forming an arcuate channel and which channel can receive therein a curved rod or implant member, which also preferably is arcuate, and avoids the associated problems with prior cage or straight rod and screw systems. Also featured are systems, apparatuses and methods for repairing, replacing or augmenting the nucleus and/or annulus of a disc.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: June 12, 2018
    Assignee: Silicon Valley Bank
    Inventors: Allen Carl, Josef K. Winkler, Robert F. Beisel, Spanky A. Raymond, Daniel S. Savage, Jason J. Gromek, Carl M. Nilsson
  • Patent number: 9844818
    Abstract: An extension assembly configured to permit a user to drill a hole through inaccessible areas in a wall is disclosed. The extension assembly includes a flexible, solid core rod having first and second ends and a holding means. The rod is configured to extend through a hole in a wall cavity and flex therein to position a tool bit at an inaccessible location in the wall cavity and permit a user to drill a hole through a substrate at the inaccessible location. The holding means is secured to the second end of the rod for releasably holding a tool bit for rotation with the rod and includes a sleeve adapted to slide axially along a body of the holding means between a secured position where a tool bit is securely held within the holding means and a release position where the tool bit is released from the holding means.
    Type: Grant
    Filed: June 18, 2015
    Date of Patent: December 19, 2017
    Inventors: Christopher L White, Richard M Davidian
  • Patent number: 9844862
    Abstract: The fastener drive tool is a hand powered drive device that is used to drive fasteners around an axis. The fastener tool device is formed in the shape of a cylinder. The first end of the fastener drive tool is designed to receive driver bits designed for use with power drills, including, but not limited to, 6 point, 12 point, flat head, Phillips head, and star driver bits and driver bit sets. The second end of the cylinder is designed to receive a square driver bits commonly used for driver sockets. Optionally, the first end and the second end can be fitted with a ratchet device. The fastener drive tool comprises a flexible steel wire, a rubber covering, a woven steel lube, a first driver port, and a second driver port.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: December 19, 2017
    Inventor: Dennys Velez
  • Patent number: 9775723
    Abstract: In one aspect, an instrument for placing a graft, implant and/or graft material at a target site for enhancing posterolateral fusion between two or more vertebrae is provided which includes a housing and an actuable trigger associated with the housing. A curved rigid access tube extends from the housing, the access tube terminating at a distal end. A sheath is disposed about, and moveable relative to the access tube, and a transmission is disposed in the housing. In an initial state, the sheath extends distally past the distal end of the access tube, a space being defined within the sheath distally of the distal end of the access tube to accommodate the graft, implant and/or graft material. The transmission is configured to cause an incremental displacement of the sheath relative to the distal end of the access tube upon an actuation of the trigger.
    Type: Grant
    Filed: December 23, 2015
    Date of Patent: October 3, 2017
    Assignee: SPINE WAVE, INC.
    Inventors: Lawrence M. Boyd, John J. Ratcliffe, Jr., Tim E. Adamson, Paul J. Grata
  • Patent number: 9743937
    Abstract: Devices and methods for creating holes in the articular process of the vertebra are provided. One embodiment of the invention comprises a drill head comprising a frame, punch arm with punch tip and opposing plate. Methods of using the resulting holes to anchor or stabilize facet joint prosthesis, and also altering the spacing and motion at the facet joints of the vertebral column, are provided.
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: August 29, 2017
    Assignee: Spinal Elements, Inc.
    Inventors: Jason Blain, Eric J. Kovach
  • Patent number: 9572686
    Abstract: A system for repairing cartilage includes a trephine having a passage extending along a longitudinal axis of the trephine. The trephine has a distal end and a proximal end. The distal end includes a cutting member operable to cut a cartilage plug from a donor site. The passage is operable to receive the cartilage plug. Also, the trephine is flexible to selectively move between a first position in which the longitudinal axis is substantially linear and a second position in which the longitudinal axis is nonlinear. Moreover, the system includes a guide tool that is removably coupled to the trephine. The guide tool is operable to selectively move the trephine between the first and second positions. In addition, the system includes an ejector tool that ejects the cartilage plug from the passage toward a defect site.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: February 21, 2017
    Assignee: Biomet Manufacturing, LLC
    Inventor: Jason D. Meridew
  • Patent number: 9394969
    Abstract: A hand-held tool gear mechanism unit includes a drive gearwheel, an output gearwheel, and a connecting unit. The output gearwheel has a rotational axis spaced apart radially from a rotational axis of the drive gearwheel. The connecting unit is configured to transmit a rotational movement from the drive gearwheel to the output gearwheel substantially without a step-up transmission ratio. The connecting unit is configured to couple the drive gearwheel and the output gearwheel such that they can be moved relative to one another about a pivot axis.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: July 19, 2016
    Assignee: Robert Bosch GmbH
    Inventors: Thomas Hampel, Juergen Gairing
  • Patent number: 9009946
    Abstract: A machining apparatus for grinding, milling, polishing or the like of a dental workpiece. The machining apparatus contains a machining tool, a housing to which the machining tool is mounted rotatably about an axis of rotation relative to the housing, and a holding device to which the housing is fixed. The housing is mounted yieldingly movably to the holding device in dependence on forces exerted on the machining tool.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: April 21, 2015
    Inventor: Heinrich Steger
  • Patent number: 8828001
    Abstract: A minimally invasive and particularly small apparatus for drilling into bone and for providing for delivery of medical treatment is provided. The directional drilling apparatus includes a miniature shaft, a bit, first shaft-mounted thrust ring, second shaft-mounted thrust ring, a tubing jacket surrounding the shaft and intermediate the first and second shaft-mounted thrust rings, and a guide tube encapsulating the tubing jacket. As a result, a hole, targeted towards a cancerous lesion within the bone, is possible. After removal of the shaft and the tubing jacket, treatment may be introduced through the particularly small passage created by the directional drilling apparatus or through the passage via a capillary inserted through at least a portion of the guide tube and the passage, which guide tube may include a hypodermic needle.
    Type: Grant
    Filed: February 15, 2008
    Date of Patent: September 9, 2014
    Assignee: Gabriel Institute, Inc.
    Inventors: Stanley D. Stearns, H. Max Loy, Jr.
  • Patent number: 8770898
    Abstract: An assembly includes a quick-release head, a tail piece and a flexible metal rod. The tail piece includes a shaft and a male coupler formed of a head, body, and flute. At least a portion of the male coupler head has a reduced outer dimension relative to an outer dimension of the body. When the male coupler is mounted in a second quick-release head or drill, a clearance space is provided between the reduced outer dimension portion and the second quick-release head or drill. During use, the assembly may undergo bending which results in significant forces applied in particular to the male coupler head. By providing the clearance space, these forces are predominantly shifted to the male coupler body, thereby reducing the likelihood that the male coupler head will shear from the remainder of the male coupler.
    Type: Grant
    Filed: May 4, 2011
    Date of Patent: July 8, 2014
    Assignee: Greenlee Textron Inc.
    Inventor: William Nordlin
  • Publication number: 20120253348
    Abstract: Drive shaft for interchangeable reaming heads intended for surgical use, in particular a reaming head used prior to the positioning of an intramedullary nail in the femur or in a long bone. The shaft has a rod (20) made from composite material, e.g. carbon and/or glass fiber reinforced polymer, and a connection element (35) for the coupling of an interchangeable reaming head. One portion (32) of said connection element (35) is inserted into a cavity in the first end (21) of said rod (20). The inventive shaft has a constant diameter, a smooth external surface and a low cost such that it can be disposed of after use.
    Type: Application
    Filed: April 26, 2012
    Publication date: October 4, 2012
    Inventors: Yvan Arlettaz, Christian Bonjour
  • Publication number: 20110280676
    Abstract: An assembly includes a quick-release head, a tail piece and a flexible metal rod. The tail piece includes a shaft and a male coupler formed of a head, body, and flute. At least a portion of the male coupler head has a reduced outer dimension relative to an outer dimension of the body. When the male coupler is mounted in a second quick-release head or drill, a clearance space is provided between the reduced outer dimension portion and the second quick-release head or drill. During use, the assembly may undergo bending which results in significant forces applied in particular to the male coupler head. By providing the clearance space, these forces are predominantly shifted to the male coupler body, thereby reducing the likelihood that the male coupler head will shear from the remainder of the male coupler.
    Type: Application
    Filed: May 4, 2011
    Publication date: November 17, 2011
    Inventor: WILLIAM NORDLIN
  • Patent number: 7726919
    Abstract: A machine tool includes a driver, a tool holder, and a locking device in the form of, for example, an alignment collar. In use, the machine tool carries a tool, such as a surface refinishing bit, which may be lowered into a workpiece bore, such as a cylinder head valve seat, and subsequently rotated by a machine spindle for resurfacing the bore. The machine tool receives a pilot shaft placed in a reference bore associated with the workpiece bore. The pilot shaft functions to ensure general alignment of the machine tool cutting axis and the refinishing surface.
    Type: Grant
    Filed: February 1, 2006
    Date of Patent: June 1, 2010
    Assignee: Rottler Manufacturing Inc.
    Inventors: Donald Brooks Rottler, Anthony R C Usher, Ranjit (Robin) Chera, Andrew Rottler
  • Patent number: 7717653
    Abstract: A case is mounted to the outer portion of the bottom portion of the shank through a bearing and an absorption rod is situated in an axial hole provided in the axial direction on the bottom of the shank such that it is slidable in the axial direction. An absorption spring for urging the absorption rod in the axial direction is installed between the absorption rod and the shank and a tiltable case is situated on the bottom within the case such that it is capable of tilting with respect to the axial line. A holder is situated rotatably through a bearing within the tiltable case. A slidable holder provided with a chuck portion for a tool at a leading end thereof is situated slidably in the axial direction and the bottom end portion of the absorption rod and the top end portion of the holder are connected to each other through a universal joint.
    Type: Grant
    Filed: December 7, 2006
    Date of Patent: May 18, 2010
    Assignee: Tsukasa Machine Industry Co., Ltd.
    Inventors: Yoshihiro Miyata, Makoto Mizumukai
  • Patent number: 7513720
    Abstract: A device gaging, tapping and/or re-chasing threaded devices which automatically accommodates and corrects for both lateral offset and angular offset between the longitudinal axis of the threaded member of the device and the threaded member being tested.
    Type: Grant
    Filed: October 24, 2006
    Date of Patent: April 7, 2009
    Inventor: John L. Wickham
  • Publication number: 20080317559
    Abstract: A flexible, extendable extension assembly used to create extended length holes and holes through inaccessible areas in walls and framing. The extension assembly including a flexible, solid core rod having first and second ends; and a holding means secured to the first end of the rod for releasably holding a tool bit for rotation with the rod.
    Type: Application
    Filed: September 4, 2008
    Publication date: December 25, 2008
    Inventors: Christopher L. White, Richard M. Davidian
  • Patent number: 7444757
    Abstract: Disclosed is an alignment tool. A body of the alignment tool fits into a turret block, while a head holds a machine-tool. During the alignment process, the head and body are allowed to move relative to one another in two dimensions perpendicular to an axis of rotation of a spindle. To align the alignment tool, a workpiece is inserted into the spindle. As the workpiece spins, a machine-tool cuts a taper in it. An “empty” alignment tool is brought to bear against the tapered workpiece. The axis of the head of the empty alignment tool, and thus the axis of any machine-tool held by the head, is aligned with the axis of the tapered workpiece and, thus, with the axis of the spindle. Once the machine-tool is aligned with the spindle, the head and body are tightly fastened together to preserve the alignment.
    Type: Grant
    Filed: October 3, 2006
    Date of Patent: November 4, 2008
    Assignee: T.R. Machine, Incorporated
    Inventors: Thomas Richard Olsen, Aaron Michael Sargent
  • Patent number: 7435042
    Abstract: A flexible, extendable extension assembly used to create extended length holes and holes through inaccessible areas in walls and framing. The extension assembly including a flexible rod having first and second ends; and a holding means secured to the first end of the rod for releasably holding a tool bit for rotation with the rod.
    Type: Grant
    Filed: May 10, 2006
    Date of Patent: October 14, 2008
    Inventors: Christopher L. White, Richard M. Davidian
  • Publication number: 20070297868
    Abstract: A device gaging, tapping and/or re-chasing threaded devices which automatically accommodates and corrects for both lateral offset and angular offset between the longitudinal axis of the threaded member of the device and the threaded member being tested.
    Type: Application
    Filed: October 24, 2006
    Publication date: December 27, 2007
    Inventor: John L. Wickham
  • Patent number: 7211034
    Abstract: An apparatus for operating multiple tool bits, all being independently powered through flexible shafts by a single motor, wherein each flexible shaft is connected to a dedicated docking station, and the single drive motor is operatively connected to a given docking station only when the particular tool bit dedicated to that particular docking station is desired to be operational. The motor is translated along a track corresponding to the pathway defined by the docking stations.
    Type: Grant
    Filed: January 19, 2006
    Date of Patent: May 1, 2007
    Inventor: Guy Beard
  • Patent number: 7137763
    Abstract: A pneumatically driven deburring device having a housing and a pneumatic motor mounted therein which is adapted to receive and drive a deburring tool. A pivot bearing is mounted within the housing adjacent the pneumatic motor. A motor support is held within the pivot bearing and extends therefrom where the motor support connects to the pneumatic motor. An air inlet is disposed adjacent the pivot bearing and is communicatively connected thereto. Air for driving the pneumatic motor is directed through the air inlet, and through a hollow portion of the motor support to where air is directed into the pneumatic motor. Because the motor support is supported or contained within the pivot bearing, it follows that the motor support articulates with the pivot bearing and hence the pneumatic motor moves with the articulating motor support.
    Type: Grant
    Filed: August 12, 2004
    Date of Patent: November 21, 2006
    Assignee: ATI Industrial Automation, Inc.
    Inventor: Douglas K. Lawson
  • Patent number: 6974286
    Abstract: A robotic deburring tool having a housing. Mounted within the housing is a pneumatic motor that includes a backwall and a drive shaft. Secured to the terminal end of the drive shaft is a deburring tool. A pivot-bearing is mounted in the housing adjacent the backwall. A connector extends from the backwall of the pneumatic motor and connects to the pivot bearing, thereby permitting the pneumatic motor to freely articulate radially in any direction while preventing free rotation about the bearing's longitudinal axis. A compliance device extends around the pneumatic motor at a location between the backwall and the deburring tool secured to the drive shaft. The compliance device restricts the movement of the pneumatic motor while applying a compliance force to the pneumatic motor as the pneumatic motor moves with the pivot bearing.
    Type: Grant
    Filed: July 25, 2003
    Date of Patent: December 13, 2005
    Assignee: ATI Industrial Automation, Inc.
    Inventor: Douglas K. Lawson
  • Patent number: 6932547
    Abstract: A toolhead assembly for a CNC machine displaceable along orthogonal x, y and z-axes generally consisting of a support assembly, a tool carrier supported on the support assembly having a rotatable tool axis and being displaceable relative to the support assembly between a first position wherein the tool axis is aligned with the z-axis and a second position wherein the tool axis is misaligned with the z-axis, structure for yieldably biasing the tool carrier assembly into the first position and structure responsive to a displacement of the tool carrier assembly to the second position for breaking an electrical grounding circuit of a controller operatively connected to the machine.
    Type: Grant
    Filed: December 24, 2003
    Date of Patent: August 23, 2005
    Assignee: Thermwood Corporation
    Inventors: Michael P. Hardesty, David Stutsman
  • Patent number: 6862958
    Abstract: A flexible drive shaft extension for hand tools comprises serially nested, socket-ended Shaft components of polygonal cross-section which have freedom of universal motion from axial alignment limited to about five degrees of arc and which are forcibly retained in coupled connection within a sleeve by spring biasing.
    Type: Grant
    Filed: December 28, 2002
    Date of Patent: March 8, 2005
    Inventor: Robert L. Schade
  • Publication number: 20040240951
    Abstract: A drill tool comprises a drive shaft (2) that is arranged to allow rotational movement to be transmitted from a drill to a drill bit holder (10) even when the opposite ends of the drive shaft are not axially aligned. The end of the drive shaft housing the drill bit holder (10) can be inserted into a guide member (14) that includes a planar element (18, 42) that is arranged to ensure that the drill bit is maintained at substantially 90° to the surface of a work piece being drilled even if the drill itself is not so aligned.
    Type: Application
    Filed: March 10, 2004
    Publication date: December 2, 2004
    Inventors: Philip Roberts, David Sprake
  • Patent number: 6802678
    Abstract: In a tapping unit according to the invention, the tap is held in a tap-carrier which is screwed into a pattern retained and fixed against rotation in a casing. The tap, the tap-carrier and the pattern form a subassembly mobile with limited amplitude in axial translation and radial displacement inside the casing, so that the tap can follow unwanted movements of the part being tapped.
    Type: Grant
    Filed: January 23, 2002
    Date of Patent: October 12, 2004
    Assignee: Pronic
    Inventor: Jean-Noël Augis
  • Publication number: 20040126195
    Abstract: A flexible socket extension includes two connectors disposed in two ends of a flexible housing, and a number of torque transmitting elements received in the flexible housing and coupled between the connectors. One of the torque transmitting elements includes a neck and a tongue which has a width greater than that of the neck. The other torque transmitting element includes a lateral groove for receiving the tongue, and having two juts extended into the lateral groove, for engaging with the tongue and for rotatably retaining the torque transmitting elements together.
    Type: Application
    Filed: December 27, 2002
    Publication date: July 1, 2004
    Inventor: Chun Fa Fu
  • Patent number: 6564823
    Abstract: A method and apparatus for testing plumbing installations including a tool for making an opening through a test cap or other blockage in a fluid-carrying line of a plumbing system. The tool and cap make the testing method possible. During the rough-in plumbing phase of construction, a test cap welded in the drain pipe seals the drain line from the sewer line at the location of the clean-out. Thereafter, the rough-in plumbing system is tested by pressurizing the system through the clean-out on the building side of the cap. Following successful completion of this test, the top-out plumbing is completed, leaving the test cap welded in place. After the roof vents are in, the top-out test of the plumbing system is made, also through the clean-out. After final test and inspection, a special tool constructed in accordance with the present invention is inserted down the clean-out to penetrate and ream-out the test cap.
    Type: Grant
    Filed: October 27, 1999
    Date of Patent: May 20, 2003
    Inventor: John M. Mankins
  • Patent number: 6511266
    Abstract: Holes can be cut squarely through obstructions hidden within a hollow wall by apparatus that may include a flexible guide tube having a work-engaging head at one end; a collared lead screw or other arrangement for bringing the work-engaging head into perpendicular engagement with an obstruction; and a cutting tool for cutting the hole. In a some versions of the invention, two work engaging heads are coaxially attached to the end of the guide tube, inserted into the wall through an access hole, and used to sequentially cut holes through two obstructions. An advantage of this arrangement is that the second, smaller, hole has a large enough diameter to be used for feeding most sorts of flexible lines through the wall. In addition, a panel protecting apparatus is provided so that extensive work can be done within the wall without damaging the margins of the access hole.
    Type: Grant
    Filed: May 2, 2001
    Date of Patent: January 28, 2003
    Inventor: Daniel J. Groot
  • Patent number: 6352394
    Abstract: The present invention provides for a readily exchangeable flex tool for machining a workpiece. The flex tool includes a driver and an tool carrying body. The driver is coupled to the tool carrying body in a manner which allows the tool carrying body to have at least two degrees of freedom with respect to the driver. The tool carrying body includes an elongate pilot shaft, the elongate pilot shaft and tool carrying body having a longitudinal axis. The at least two rotational degrees of freedom allowing the longitudinal axis of the tool carrying body and elongate pilot shaft to be aligned with a longitudinal axis of a reference bore contained in the workpiece and slidably inserted therein.
    Type: Grant
    Filed: April 29, 1999
    Date of Patent: March 5, 2002
    Assignee: DCM, Tech
    Inventors: Gerald P. Lawson, David H. Arnold
  • Patent number: 6322298
    Abstract: Within the hermetically sealed interior of a housing 9, a driving bevel gear 15 is fixedly secured to an input shaft 12 coupled via a rotation transmission cable 5 to an output shaft of a drive unit. A spindle 19 rotates jointly and coaxially with the driving bevel gear 15, which meshes with a driven bevel gear 17 coupled in such a manner as to allow a relative displacement in the axial direction. The spindle 19 has an externally threaded portion 19A screwed in an internally threaded portion 20A of a master metal 20. The spindle 19 has one end protruding from the housing 9 to the exterior, the one end being provided with a spindle chuck 21 for retaining a tap T.
    Type: Grant
    Filed: October 21, 1999
    Date of Patent: November 27, 2001
    Inventor: Yoshinori Wada
  • Patent number: 6276878
    Abstract: A horizontal cutting type-tapping machine has a vertically extending drive shaft and a pair of detachably engaged surface gears. The surface gears have a curved upper surface gear, fixedly connected to the drive shaft, and a lower surface gear. A gearbox is connected to the lower surface gear and converts a horizontal rotating force of the drive shaft to a vertical rotating force. An externally threaded shaft is horizontally mounted to a vertically rotating gear of the gearbox. An internally threaded sleeve is disposed in the gear housing of the gear box and engages the externally threaded shaft so as to be horizontally moved by rotation. A saw part is fixed to a front end of the internally threaded sleeve. An internal tube, mounted around the drive shaft, has a thread at its upper portion and a lower portion with a diameter smaller than that of the upper portion. A vertically moving sleeve is slidably mounted around the lower portion of the drive shaft.
    Type: Grant
    Filed: November 15, 1999
    Date of Patent: August 21, 2001
    Inventor: Woo Kag Lee
  • Patent number: 6257808
    Abstract: The invention provides a flexible guide tube with prongs or other work-engaging means at one end. These prongs may be stabbed into an obstruction in a hollow wall to set the position of a throughhole and to hold the tubular guide in a fixed position against the torsional, or other, forces of a drill or other cutting tool used to cut the hole. The drill may be rotated by means of a flexible shaft running within the guide tube. After a throughhole is cut in the obstruction, a line-fishing member may be inserted through the guide tube and the obstruction and into a space on the distal side of the obstruction. The line-fishing apparatus may comprise an end portion having a collapsed state in which it can pass through the guide tube and an expanded state in which it provides a visible target that can be readily engaged by tools operated by a worker on the distal side of the obstruction who is prohibited from getting any closer than a few yards from the target.
    Type: Grant
    Filed: March 9, 2000
    Date of Patent: July 10, 2001
    Inventor: Daniel Groot
  • Patent number: 6179532
    Abstract: A flexible deburring tool for removing burrs from a metal component made of unitary construction having a handle and a tool head with a flexible shaft extending between them that allows the tool head to be positioned in hard to reach or tight fitting situations. The tool head is provided with a recess to receive a tool bit such as a deburring bit. The shaft is narrower than the handle and allows a range of flexation greater than 90 degrees.
    Type: Grant
    Filed: April 12, 1999
    Date of Patent: January 30, 2001
    Inventor: Steven V. Oldham
  • Patent number: 6162227
    Abstract: A bone milling tool for precise preparation of bones includes a milling head connected to a driveshaft. The driveshaft simultaneously serves as a guide element which is guided in a bone. The bone milling tool further includes a toothing which is arranged on the milling head facing the driveshaft.
    Type: Grant
    Filed: April 29, 1999
    Date of Patent: December 19, 2000
    Assignee: Plus Endoprothetik AG
    Inventors: Harald Eckhardt, Gero Krause
  • Patent number: 6161563
    Abstract: A plumbing tool for providing a passageway through a blockage, such as a test cap or other blockage, in a fluid-carrying line. During the rough-in plumbing phase of construction, the drain pipe leading from the plumbing system in a building to the city sewer main in the street is positively sealed off by a test cap welded in the pipe at the location of the clean-out. Pressurizing the rough-in plumbing to test the same can then proceed knowing that if any leaks occur, they are in the branch plumbing on the building side of the test cap and not at or in the test cap. Following successful completion of the initial test, the top-out plumbing is completed, leaving the test cap welded in the clean-out or drain pipe. After the roof vents are in, the top-out test of the plumbing system is made, again knowing that if the system shows any leaks, they are the result of a failure in the plumbing work and not a failure of the test cap.
    Type: Grant
    Filed: March 4, 1998
    Date of Patent: December 19, 2000
    Inventor: John M. Mankins
  • Patent number: 5908423
    Abstract: An apparatus for reaming a bone canal, such as the medullary canal of a femur, has a flexible shaft (12, 92) with a proximal end (16) for engaging a rotary transmission source. A first reamer (14, 61) is coupled to the distal end of the flexible shaft for rotation therewith to prepare the distal portion of the canal. A second reamer (22, 93) coupled with the proximal portion of the shaft to form the proximal end of the lateral portion of the canal and/or the medial calcar region of the canal. The apparatus further comprises a metaphyseal template (70, 80) having the shape of the prosthesis for guiding the reaming apparatus in forming the calcar region of the canal.
    Type: Grant
    Filed: March 4, 1996
    Date of Patent: June 1, 1999
    Assignee: Howmedica, Inc.
    Inventors: Glen A. Kashuba, Antony Koblish, Jay Bichet
  • Patent number: 5836725
    Abstract: A method and machine for repairing overhead cam engine cylinder heads and the like. The method includes the steps of removing the caps from the bases of the bearing towers or housings, removing material from the legs of the caps to reduce their height, replacing the caps on the bases, and boring the resulting bearings to produce bearings of the proper diameter. The machine includes a device for machining a bearing cap and a device for boring the bearings. The device for boring the bearings has a boring bar that is supported only at opposite ends of the cylinder head. The bar does not sag or chatter because it is made of an extremely hard and dense material such as a dense tungsten alloy or a ceramic-coated metal.
    Type: Grant
    Filed: September 16, 1996
    Date of Patent: November 17, 1998
    Assignee: Harmand Family Limited Partnership
    Inventor: Brice Harmand
  • Patent number: 5709511
    Abstract: A curved machining jig for machining a curved workpiece having an arcuate shaped centerline, the curved machining jig comprising a table having a rotatably mounted column extending perpendicular from the table, the column rotating on a first axis perpendicular to the table, an arm attached to and extending from the column, a drive portion on the arm, a tool attachment and a workpiece attachment supported above the table, the curved workpiece removably retained by the workpiece attachment, a machining tool on the tool attachment, a means for moving the drive arm causing the arm to rotate about the column engaging the workpiece and the machining tool to perform a curved machining operation on the workpiece.
    Type: Grant
    Filed: November 15, 1995
    Date of Patent: January 20, 1998
    Inventor: Karim Esmailzadeh
  • Patent number: 5615981
    Abstract: A threaded hole may be formed in a lid of an underground petrol tank without emptying the tank or removing the lid, using a tool (FIG. 3) having a taper tap section (61), an intermediate tap section (62) and a final tap section (63). At the leading end of the tool, there is a reamer section (60) and supported on the free end of the tool is a centerless hole cutter (50). A resilient mounting transmits drive from the main part of the tool to the cutter (50), but allows the cutter to float. A sleeve (23) surrounds the tool, so that a column of inert gas may be caused to lie in the cutting region. A magnet (57) mounted within the cutter (50) catches and holds a released disk of the cover. Also described is a rig (FIG. 1), for operating the tool (FIG. 3), and a method (FIG. 5) of securing a collar threaded into a hole formed by the tool.
    Type: Grant
    Filed: October 30, 1995
    Date of Patent: April 1, 1997
    Inventor: Douglas J. Wheatley
  • Patent number: 5527316
    Abstract: A surgical reamer is used in conjunction with a femoral neck cutting guide to enlarge the intramedullary canal of a resected host femur to expose hard cortical bone. The reamer has a longitudinally fluted cutting head that is flexible and able to bend relative to its longitudinal axis whereby to conform to axial or curved cortical bone surfaces to be engaged by like mating surfaces of a hip prosthesis to be implanted therein. In this regard, the cutting head includes a helical band spiralling between the ends of the cutting head.
    Type: Grant
    Filed: February 23, 1994
    Date of Patent: June 18, 1996
    Inventors: Kevin T. Stone, Daniel E. Williamson, Jane A. Sheetz
  • Patent number: 5395188
    Abstract: A drilling tool for drilling a curved hole. The tool includes a curved guide tube for positioning the tube in drilling position against a wall and a flexible shaft extending through the guide tube having a drill bit on the end thereof adjacent the outlet end of the tube and a shank on the opposite end engaged in a drill tool chuck. Operation of the drill tool rotates the drill bit and the tube guides and directs the bit to drill a curved or angled hole. The drill bit can be a spade bit, a spiral bit or a ball mill.
    Type: Grant
    Filed: December 23, 1993
    Date of Patent: March 7, 1995
    Assignee: Roy E. Bowling
    Inventors: Charles E. Bailey, Roy E. Bowling
  • Patent number: 5245735
    Abstract: The flexible shaft cables of a plurality of power tools pass through recesses of a switch assembly having a plurality of spring-loaded switching elements respectively extending into the recesses. Lifting the cable of a selected tool out of its recess, actuates the associated switching element to automatically connect the selected tool for actuation by a common foot pedal.
    Type: Grant
    Filed: March 12, 1992
    Date of Patent: September 21, 1993
    Inventor: Hagop Tanashian
  • Patent number: 5236289
    Abstract: A shielded universal joint having a pivot head defining a primary axis. The pivot head has a ball and a neck. The ball has a longitudinal slot. The slot has a throat at the center of the ball. The imperfect socket head is provided having a socket and a pin. The socket defines a secondary axis. The socket has a cavity concentric with the secondary axis. The cavity closely receives the ball. The socket has a continuous margin. The pin is joined to the socket in spaced relation to the margin. The pin extends through the passage. The pin defines a first pivot axis extending longitudinally through the pin. The pin and the throat define a second pivot axis extending through the throat and the pin perpendicularly to the first pivot axis. The socket head is simultaneously pivotal relative to the ball about both of the pivot axes.
    Type: Grant
    Filed: March 11, 1991
    Date of Patent: August 17, 1993
    Assignee: Othy, Inc.
    Inventor: Paul E. Salyer
  • Patent number: 5201617
    Abstract: An apparatus for supporting a machining tool on a robot arm is disclosed having first and second support members with the second support member attached to the first support member by torsion bar elements so as to be movable with respect to the first member about an axis in a single degree of freedom. The first support member is attached to the end of the robot arm and the machining tool is attached to the second support member.The torsion bar element interconnecting the first and second support members has end portions larger than a connecting portion extending between them. One end portion is fixedly attached to one of the support members and the other end portion is fixedly attached to the other support member. The torsion bar elements are generally cylindrical in configuration and are dimensioned such that the diameters of the end portions are between seven and ten times the diameter of the connecting portion.
    Type: Grant
    Filed: July 1, 1992
    Date of Patent: April 13, 1993
    Assignee: Societe Nationale d'Etude et de Construction de Moteurs d'Aviation S.N.E.C.M.A.
    Inventors: Jacques Delaval, Guy Lienhart, Jean-Yves M. Nioche, Jean-Marie Pontier
  • Patent number: 5167476
    Abstract: A collet and tool assembly for rotatable tools such as drills and taps in which the collet and tool each include mating:a) stops for limiting entrance of the tool into the holder;b) matching detents for producing an audible click when the tool is properly placed in the collet; andc) matching eccentric sections which provide positive torque transfer between the collet and the tool.
    Type: Grant
    Filed: November 16, 1990
    Date of Patent: December 1, 1992
    Assignee: Dalton Technology
    Inventors: James Lafferty, Robert DeLong
  • Patent number: 5161924
    Abstract: A chamfering tool and method for use in the precision backchamfering of a rotating part. The chamfering tool has a cutting head portion selected to match the size of the surface to be chamfered. Behind the cutting head is a shank portion of reduced diameter which connects the cutting head portion to an enlarged portion which supports the chamfering tool in a fixed tool holder. If the part centerline is not aligned with the rotating collet centerline, the part center traces a circular orbit. The shank portion of reduced diameter enables the tool to flex so that the cutting head can follow the part centerline being guided by the part's inner diameter.
    Type: Grant
    Filed: August 1, 1991
    Date of Patent: November 10, 1992
    Assignee: Autocam Corporation
    Inventor: Edward W. Hekman
  • Patent number: 5088171
    Abstract: A drilling unit mounted on an arm of an assembly robot. In order to enable a drill bush of a nose piece, for guiding a drill, to be adjustably moved into exactly registering relation with a bore of a template laid on a workpiece, the nose piece is mounted on a first cylindrical member which is mounted on a second cylindrical member through a first compliance mechanism comprising elastic support members which constitute oblique links of a trapezoidal link mechanism having an imaginary intersection of the oblique links at a front end of the drill bush. The drill bush can therefore make a swinging motion about the intersection. The second cylindrical member is mounted on a guide plate through a second compliance mechanism which enables the second cylindrical member and hence the drill bush to adjustably move in a radial direction of a rotational shaft of the drilling unit.
    Type: Grant
    Filed: July 15, 1991
    Date of Patent: February 18, 1992
    Assignee: Fuji Jukogyo Kabushiki Kaisha
    Inventor: Takashi Suzuki