Removable Central Lead Patents (Class 408/201)
  • Patent number: 11331133
    Abstract: A redressing device (100) for redressing a tapered portion (12) of an orthopaedic implant (10) comprising: a grinding member (110) adapted to engage the tapered portion (12); an adjustable guide element (130) for defining, at least in part, the degree of redressing required for said tapered portion (12) by a user; and a drive shaft (120) for driving movement of said grinding member (110). A device for retaining debris produced during redressing a tapered portion (12) of an orthopaedic implant (12), a surgical kit for redressing a tapered portion (12) of an orthopaedic implant (10) and a method of redressing a tapered portion (12) of an orthopaedic implant (10) are also provided.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: May 17, 2022
    Assignee: MEDICAL DEVICE RESEARCH AUSTRALIA PTY LTD
    Inventors: Ronald Mark Gillies, Simon Collins
  • Patent number: 10927878
    Abstract: A quick release fastener. The quick release fastener comprises a first end, a second, opposing end, and a main body therebetween. The main body comprises an internal lumen or passageway having a plurality of guiding surfaces and securing surfaces. The securing surfaces are preferably angled surfaces. The angled orientation provides a securing member insertion axis (which also forms the longitudinal axis) and a securing member securing axis; each axis forming a separate plane to allow the quick release fastener to quickly and easily traverse between a locked position and an unlocked position.
    Type: Grant
    Filed: February 21, 2018
    Date of Patent: February 23, 2021
    Inventor: James R. Rothgeb, Jr.
  • Patent number: 9221109
    Abstract: Installation systems, apparatus, and methods for use in enlarging an opening in a surface and/or installing an object in an opening in a surface. A rotary bit adaptor is adapted for mounting a guide on a rotary bit for centering the rotary bit in an existing opening for enlarging the opening on center. A support system includes a connector having a retainer and a support in ratcheting engagement with the support for supporting an object in an opening. The installation systems, apparatus, and methods are disclosed with respect to installation of balusters in stairway balustrades.
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: December 29, 2015
    Inventor: Charles Wiebe
  • Patent number: 8708618
    Abstract: A reamer for the precision machining of a drilled hole, having a plurality of cutting bars which are separated from one another by chip grooves and extend in the longitudinal direction of the tool, wherein a plurality of chip divider grooves which run in the transverse direction of the tool and divide each cutting bar into cutting segments are provided.
    Type: Grant
    Filed: May 19, 2009
    Date of Patent: April 29, 2014
    Assignee: Kennametal Inc.
    Inventor: Uwe Hobohm
  • Publication number: 20140050545
    Abstract: A multipurpose drilling tool includes a guide head, a drilling cutter, and a shank for mounting on a chuck. These three elements are assembled with one another removably so as to allow each of them to be replaced by a similar element of different dimensions. In particular, the drilling cutter has a bore, and the guide head includes a pilot that comes into abutment at the entrance of the bore and a stem that passes along the bore and is screwed into the mounting shank.
    Type: Application
    Filed: October 23, 2013
    Publication date: February 20, 2014
    Applicant: AIRCELLE
    Inventors: Gregory BAILLEUL, Christian Staes, Sylvain Le Guen, Cyrille Mutel
  • Publication number: 20130017028
    Abstract: One non-limiting aspect of the present disclosure is directed to a multi-piece twist drill head. The multi-piece twist drill head includes a core piece formed from a first hard material, and a peripheral piece formed from a second hard material. The core piece and peripheral piece each comprise a cutting edge and are adapted to mate to provide a central region and a peripheral region, respectively, of the multi-piece twist drill head. A twist drill including the multi-piece twist drill head is also disclosed.
    Type: Application
    Filed: July 11, 2011
    Publication date: January 17, 2013
    Applicant: TDY Industries, Inc.
    Inventors: X. Daniel Fang, Jean-Luc Dufour, David J. Wills
  • Publication number: 20120134760
    Abstract: A tool element for cutting a workpiece includes a shank adapted for connecting the tool element to a power tool, and a first cutting portion fixedly coupled to the shank and including a first cutting edge having a first diameter and a second cutting edge having a second diameter. A second cutting portion is removably coupled to the first cutting portion. The second cutting portion includes a third cutting edge having a third diameter and a fourth cutting edge having a fourth diameter. The second diameter is smaller than the first diameter, the third diameter is smaller than the second diameter, and the fourth diameter is smaller than the third diameter.
    Type: Application
    Filed: February 3, 2012
    Publication date: May 31, 2012
    Inventors: Kenneth Jordan, Scott Bublitz, Jonathan A. Zick
  • Patent number: 8186031
    Abstract: The bushing replacement kit includes components for reaming out a bushing passage in a mechanical structure, and for installing a new bushing in the passage. The reamer portion of the kit includes a reamer guide, which is secured precisely and immovably to the seal sleeve of the passage, the reamer having a pilot shaft that fits precisely within the guide. The guide is held in place by a guide retaining plate, which is clamped to the mechanical structure over the guide. When the reaming operation has been completed, the ream is removed and a threaded bushing installation shaft is passed through the guide and bushing passage. A new bushing is placed at the back of the passage, with a bushing installer placed in back of the bushing. A threaded fastener is installed on the installation shaft and tightened to force the new bushing into its passage.
    Type: Grant
    Filed: June 23, 2008
    Date of Patent: May 29, 2012
    Inventors: Warren A. Whitney, Robert W. Hanna, Jr.
  • Publication number: 20110188955
    Abstract: A tool element for cutting a workpiece includes a body including a shank for connecting the tool element to a power tool, a first cutting portion formed as part of the body and defining a first removing pattern, and a cutting element removably coupled to the body and including a second cutting portion defining a second removing pattern, the second removing pattern being a substantial continuation of the first removing pattern.
    Type: Application
    Filed: February 14, 2011
    Publication date: August 4, 2011
    Inventors: Kenneth Jordan, Scott Bublitz, Jonathan Zick
  • Publication number: 20110033256
    Abstract: An annular sawing structure comprises: a sawing body including a saw member, a connecting member, and a positioning drill; the saw member including a sawtoothed blade disposed on a front end thereof; the connecting member including a groove being concentric with the saw member and secured on a front end thereof; the positioning drill fitted to the groove of the connecting member and including a cutting insertion fixed on a front end thereof and extending out of a sawtoothed blade of the saw member, the cutting insertion including a reduced end extending rearward therefrom and received in the receiving chamber of the saw member, and an outer diameter of the cutting insertion being lager than that of the reduced end, and the positioning drill further including an engaging end extending out of the connecting member to couple with an engaging head of a tool.
    Type: Application
    Filed: August 6, 2009
    Publication date: February 10, 2011
    Inventor: Johnson He
  • Publication number: 20100329803
    Abstract: A self-aligning tap is used to produce correctly aligned new threads in an existing smooth bore hole. The design of the tap's shank, flutes, and cutting surfaces is that of commonly used existing taps. The flat end of the tap—the end that enters the existing bore hole—contains a threaded bore. A removable pilot that aligns the tap to the axis of the existing bore consists of a cylindrical body with a diameter slightly smaller than the existing bore hole, and a length no greater than the diameter of the major diameter of the tap. The upper end of the cylindrical pilot—the end that shoulders against the tap—comprises a threaded stem whose thread pitch matches that of the tap end's bore, and whose length is slightly less than the tap end bore's depth.
    Type: Application
    Filed: September 8, 2010
    Publication date: December 30, 2010
    Inventor: Carl Strom
  • Publication number: 20100278603
    Abstract: One non-limiting aspect of the present disclosure is directed to a multi-piece spade drill head for a spade drill, wherein the spade drill includes an elongate body portion and a cutting portion removably secured to an end of the body portion. The multi-piece spade drill head includes at least two insert pieces, each piece including a cutting edge. The at least two insert pieces are configured to be removably secured to the body portion of the spade drill adjacent one another and with the cutting edges of the insert pieces aligned to together form a cutting edge on an end of the spade drill.
    Type: Application
    Filed: July 13, 2010
    Publication date: November 4, 2010
    Applicant: TDY Industries, Inc.
    Inventors: X. Daniel Fang, Jean-Luc Dufour, David J. Wills
  • Patent number: 7758288
    Abstract: There are provided an expanded hole drilling device, a component for the expanded hole drilling device, and an expanded hole drilling method, capable of expanding the diameter of a previously bored hole to a large diameter without causing decentering. The expanded hole drilling device 10 includes a drill holder 22 that is attached to a drill grasping part 18 in place of a drill 16 and grasps the drill 16, and a centering attachment 24 having a conical tip end part, which is attached to the drill holder 22. The expanded hole drilling method includes a step of arranging a bored workpiece displaceably on a table 14, a step of performing centering by inserting the tip end part of the centering attachment 24 into a bored hole, a step of fixing the centered workpiece on the table 14, and a step of drilling the workpiece to expand the hole by using the drill 16 after the centering attachment 24 has been removed.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: July 20, 2010
    Inventor: Shigetoshi Takahashi
  • Publication number: 20100054880
    Abstract: An auger bit with a removable tip is provided. The removable tip is coupled to a first end of the auger bit. The auger bit includes a second end adapted to repeatably removably couple to a drill. The removable tip may be coupled to the first end of the auger bit by a set screw. The removable tip includes a screw tip and a cutting edge. The removable tip is configured to be replaced when it is worn, particularly when one of the screw tip and the cutting edge are worn.
    Type: Application
    Filed: August 26, 2008
    Publication date: March 4, 2010
    Inventor: Brian Ray
  • Patent number: 7544026
    Abstract: A drill bit comprises a shank having a longitudinal axis. A cutting head is formed at one end of the shank. A removable and replaceable pilot tip such as a screw tip or pilot point is formed on the cutting head. The pilot tip is designed for controlled failure. A tool is also provided for removing the broken tip. A kit comprising a dill bit adapted to receive a removable tip, a removable tip for attachment to the cutting head, and/or a removal tool for removing a broken tip from the drill bit. A method for removing a tip from a drill bit and replacing it with another tip is also provided.
    Type: Grant
    Filed: February 13, 2007
    Date of Patent: June 9, 2009
    Assignee: Irwin Industrial Tool Company
    Inventor: Laverne R. Durfee
  • Patent number: 7542135
    Abstract: The invention is a non contact laser inspection self centering device to inspect the counter sink portion of a counter sunk fastener hole on a surface. In detail, the self centering and seating device includes a combination laser transmitter and receiver for transmitting a laser bean across a surface and for receiving the return signal from the surface. A self centering device is attached to the combination laser transmitter and receiver for aligning the laser transmitter with the fastener hole such that the transmitted and received laser beam passes across the center of the counter sink portion of the fastener hole. A computer system is connected to the combination laser transmitter and receiver for analyzing the transmitted and returned laser signal from the surface and determining if the counter sink portion of the hole is within tolerance.
    Type: Grant
    Filed: June 6, 2007
    Date of Patent: June 2, 2009
    Assignee: Northrop Grumman Corporation
    Inventors: William T. Mead, Dennis Bowles
  • Patent number: 7513718
    Abstract: An alignment device for hole saw includes a first alignment member having a first end having an outer width slightly less than an inner diameter of the hole saw and serves as an alignment bearing surface therefor and a second end configured with a nose to be received adjacent a hole of a work piece and a draw bar and tightening member therewith for drawing the first alignment member against the work piece in a manner wherein the nose is self centering within the hole and thereby maintaining the first alignment member in a predetermined aligned position with respect to the work piece.
    Type: Grant
    Filed: September 12, 2005
    Date of Patent: April 7, 2009
    Inventor: Mark Arnold
  • Publication number: 20090087273
    Abstract: A cutting tool including a body, a blade, a feed shaft, and a locking member. The body defines an axis and is adapted to be received by a spindle of a power tool. The blade is removably supportable on the body and rotatable about the axis for cutting a workpiece. A feed shaft is removably supportable in the body and rotatable about the axis for engaging a workpiece, the feed shaft being mountable in the cutting tool to engage and at least partially restrain the blade. The feed shaft further includes an opening transverse to the axis. The locking member is engageable with the body and with the opening in the feed shaft. Advancement of the locking member into the opening tightens both the blade and the feed shaft to the body.
    Type: Application
    Filed: November 5, 2008
    Publication date: April 2, 2009
    Inventors: Douglas Allen, Richard Hohnl, JR.
  • Patent number: 7237984
    Abstract: The invention relates to a pilot guide and hole-cutting saw system for cutting deep holes through an indeterminate depth of material while eliminating the problem of drift and wobble associated with the use of conventional hole saws. The system comprises a hole saw and a pilot guide, the pilot guide being comprised of a stop, a front guide, a rear guide, and a pilot pin. The pilot pin is created by fitting the central apertures of the stop and front guide over the second end of the pilot pin and by fitting the central aperture of a base portion of the rear guide over the second end of the pilot pin so that the end of the pilot pin terminates inside of the central aperture of the rear guide without passing entirely through the rear guide.
    Type: Grant
    Filed: June 29, 2005
    Date of Patent: July 3, 2007
    Inventors: Thomas G. Guzda, Jan Guzda
  • Patent number: 7093360
    Abstract: Boiler tubes are removed from a boiler vessel without damaging the vessel by severing the boiler tube near the exterior periphery of the vessel, and using a piloted rotary cutting tool fixtured with respect to the longitudinal axis of the severed boiler tube to remove all but a very thin shell of the severed tube. The rotary cutting tool is then withdrawn, and the remaining thin shell of the boiler tube is manually peeled away from the periphery of the boiler vessel opening. In a preferred implementation, the rotary cutting tool is annular, and a tapered cylindrical pilot having an outside diameter slightly smaller than the inside diameter of the expanded portion of the boiler tube is retractably mounted within the annulus of the cutting tool.
    Type: Grant
    Filed: March 21, 2005
    Date of Patent: August 22, 2006
    Inventor: Merrill C. Craig
  • Patent number: 7008149
    Abstract: A new and improved tool kit and method of using the tool kit for use in making a substantially perpendicular indented surface around an existing threaded bolt hole in a workpiece is disclosed. The kit comprises a guide rod and a grinder drill bit. The guide rod has a threaded distal end that is able to be threadedly fitted within the threaded bolt hole of the workpiece. The guide rod also has a cylindrical proximate end which has a first diameter. The grinder drill bit has a shank adapted to be coupled to a shank lock of an electrical drill. The grinder drill bit also has an elongated hollow cylinder attached to the shank, in which the elongated hollow cylinder has a centrally disposed orifice.
    Type: Grant
    Filed: February 20, 2003
    Date of Patent: March 7, 2006
    Inventor: Bernard G. Rhoades
  • Patent number: 6929430
    Abstract: A method and tool are disclosed for removing a plastic water closet flange from the waste pipe to which it is attached so that a new flange may be chemically bonded to the existing waste pipe. A preferred embodiment of the water closet flange removal tool includes an axial shaft, a cylindrical guide body attached to a lower end of the shaft, the guide body having an outer diameter slightly less than the inner diameter of the waste pipe so that it is slidably insertable therein, and a cylindrical-walled cutter, having an inside diameter slightly greater than the outer diameter of the waste pipe, mounted above the guide body. For a preferred embodiment of the tool, both the guide body and the cylindrical-walled cutter are coaxially mounted on the shaft. The cylindrical-walled cutter is open at the lower end thereof so that it can slide over the waste pipe as the flange is cut therefrom.
    Type: Grant
    Filed: May 21, 2002
    Date of Patent: August 16, 2005
    Inventor: Christopher Joe Dever
  • Patent number: 6881017
    Abstract: The hole saw guide adaptor is a special adaptor for a standard hole saw which allows an individual to enlarge an opening in a wood or other work surface after an opening has already been cut in the surface. This adaptor allows an individual to increase the diameter of an existing hole that was cut with a hole saw. The adaptor would generally have a cylindrical configuration with a flattened portion on one end that allows it to be inserted into the hole saw arbor and locked into place with the set screw. The other end of the adaptor would include a threaded area similar to that on the lower end of any standard hole saw arbor. Thus, the hole saw used to cut the initial hole can be threaded onto this end of the adaptor, with the cutting edge facing away from the opening, to be used as a guide for cutting the new hole. The hole saw with the larger diameter for the new hole would be mounted in a conventional manner in the hole saw arbor.
    Type: Grant
    Filed: December 31, 2002
    Date of Patent: April 19, 2005
    Inventors: John J. Krecek, Raymond J. Brobst
  • Patent number: 6725697
    Abstract: A keyway cylinder plug removal tool specifically configured for the removal of a lock core or cylinder plug from a safety deposit box. The tool includes a shaft received within a hole saw housing, the hole saw housing including a plurality of teeth, positioned about a cutting cylinder. The hole saw housing includes a shank. The shaft including a keyway end and a free end. The free end fits into the shank of the hole saw housing and a keyway tab attaches to the keyway end of the shaft. The keyway tab inserts into a keyway of a cylinder plug. Once the cylinder plug is removed, the latch bolt of the lock can be retracted, to open the safety deposit box. The keyway tab is typically flat and free of cut indentations or “keying,” but is generically insertable into most manufactures' proprietary keyway shapes. The keyway tab attached to the keyway end of the shaft. A shaft spring is received onto the shaft and abuts against the holesaw housing.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: April 27, 2004
    Inventor: Kevin P. Leadon
  • Publication number: 20040013481
    Abstract: A grommet-remover tool has a grommet-flange cutter (1) with a cylindrical cutting surface (2) that is articulated to cut through a grommet flange (3) proximate a connection of the grommet flange to a grommet sleeve (4) with minimal, if any, cutter grasping of the grommet flange and rotating the grommet in a grommet aperture in covering material (8) to which the grommet is affixed. The grommet-flange cutter includes an attachment boss (6) with which it is attachable to a rotational tool (7).
    Type: Application
    Filed: July 17, 2002
    Publication date: January 22, 2004
    Inventor: Richard F. Jeppesen
  • Patent number: 6676343
    Abstract: A drill bit 10 for creating and using a pilot hole 101 in a workpiece 100 to produce a finished hole 102 in the workpiece 100 centered around the pilot hole 101 wherein the drill bit 10 includes an enlarged cutting head member 30 mounted in a concentric relationship to an elongated guide head member 40 wherein both of the head members 30 40 are mounted on a shaft member 20 connected to a power drill 200 such that the elongated guide head member 40 engages the sides of a pilot hole 101 in a workpiece 100 to act as a guide element for the enlarged cutting head member 30 to create the enlarged finished hole 102 in the workpiece.
    Type: Grant
    Filed: October 2, 2001
    Date of Patent: January 13, 2004
    Inventor: Donald E. Burk
  • Patent number: 6602027
    Abstract: A guide to center a screw or drill bit in the center of a hole of a countersink in a member to engage a piece under the member, the countersink having a downwardly tapered wall from the member to the hole. The guide has a body with a through hole and a tapered part that is to rest on the member tapered wall to align the through hole generally perpendicular to the piece. In a preferred embodiment the guide body tapered part is at an end of the body and the body is of frangible material and holds a screw in the through hole which fractures the body as the screw is threaded into the piece beneath the member. At least one slot is formed in the body along at least a part of its length between its top and bottom ends to facilitate the fracture of the body.
    Type: Grant
    Filed: September 26, 2001
    Date of Patent: August 5, 2003
    Assignee: Simp'l Products, INC
    Inventors: Richard H. Deaton, Burton Weinstein, Gordon D. Coplein
  • Publication number: 20030063956
    Abstract: A drill bit 10 for creating and using a pilot hole 101 in a workpiece 100 to produce a finished hole 102 in the workpiece 100 centered around the pilot hole 101 wherein the drill bit 10 includes an enlarged cutting head member 30 mounted in a concentric relationship to an elongated guide head member 40 wherein both of the head members 30 40 are mounted on a shaft member 20 connected to a power drill 200 such that the elongated guide head member 40 engages the sides of a pilot hole 101 in a workpiece 100 to act as a guide element for the enlarged cutting head member 30 to create the enlarged finished hole 102 in the workpiece.
    Type: Application
    Filed: October 2, 2001
    Publication date: April 3, 2003
    Inventor: Donald E. Burk
  • Publication number: 20030059267
    Abstract: A guide to center a screw or drill bit in the center of a hole of a countersink in a member to engage a piece under the member, the countersink having a downwardly tapered wall from the member to the hole. The guide has a body with a through hole and a tapered part that is to rest on the member tapered wall to align the through hole generally perpendicular to the piece. In a preferred embodiment the guide body tapered part is at an end of the body and the body is of frangible material and holds a screw in the through hole which fractures the body as the screw is threaded into the piece beneath the member. At least one slot is formed in the body along at least a part of its length between its top and bottom ends to facilitate the fracture of the body.
    Type: Application
    Filed: September 26, 2001
    Publication date: March 27, 2003
    Applicant: SIMP'L Product, Inc.
    Inventors: Richard H. Deaton, Burton Weinstein, Gordon D. Coplein
  • Patent number: 6409437
    Abstract: A cone shaped hole saw centering device for locating a hole saw where a hole larger than the pilot bit of the hole saw already exists. The device is simple with no attachment or adjustment necessary. It would locate a hole saw on any size hole from the inside diameter of the hole saw to the outside diameter of the pilot bit with or without the pilot bit being used.
    Type: Grant
    Filed: October 16, 2000
    Date of Patent: June 25, 2002
    Inventor: William Davis Metzger
  • Publication number: 20020054797
    Abstract: A rotary cutter (A) adapted to open a pre-drilled hole to a larger diameter, comprises a shank (3) of industry-standard external profile adapted to fit into a chuck, arbor, etc of a drilling machine, a co-axial cutting section (5) extending from the shank (3) and a co-axial, non-cutting pilot boss (9) extending from the cutting section (5), the latter being of the required larger diameter (D) for the pre-drilled hole, and the pilot boss (9) being of smaller diameter (d) and, hence, undersize with respect to the pre-drilled hole.
    Type: Application
    Filed: May 24, 2001
    Publication date: May 9, 2002
    Inventors: Brian Gascoyne, Michael John Kaye
  • Patent number: 6357972
    Abstract: A cutting tool for locating an axis in a first member and cutting a sized hole in a second member overlying the first member. The cutting tool includes a base assembly and a cutter assembly which may be used independently of the base assembly. The cutter assembly includes a guide member, a cutting blade and a handle structure with a face portion. The guide member is coupled to the handle structure and extends from the face portion. The cutting blade is coupled to the handle structure such that the cutting blade extends from the face portion and is spaced radially outward of the guide member. The base assembly has a base structure, a stem member and a pilot aperture. The base structure has a first side adapted to contact the second member and a distal side adapted to contact the first member. The stem member is coupled to the distal side of the base structure and is adapted to engage a hole in the first member to locate the axis in the first member.
    Type: Grant
    Filed: February 29, 2000
    Date of Patent: March 19, 2002
    Assignee: DaimlerChrysler Corporation
    Inventors: Jeffrey D Zendler, Mark Sementilli, Marinko Mustapic, Dino Mancini, Ross G Good, William M Buehrer, Andrew R Kavc
  • Patent number: 6305885
    Abstract: A hole enlargement apparatus which uses a simple spring biased disc to center a larger hole cutter in the existing hole and a disc retention means to ensure that the disc does not fall unretrievably into the enlarged hole. The apparatus is used in conjunction with a conventional large hole cutter of the type having a toothed cylindrical cup, a hub axially secured in a bottom portion of the cup, and a pilot bit axially and removably secured through the hub and cup.
    Type: Grant
    Filed: June 26, 2000
    Date of Patent: October 23, 2001
    Inventor: Leo Linthicum
  • Patent number: 6206618
    Abstract: A rotary pipe cutting apparatus for removing sections of broken pipe from the bore of an outer pipe. The invention includes a cylindrical body with a longitudinal slot that is angularly offset from the rotational axis of the body and which is tapered in depth and width from top to bottom. A blade is included on the body adjacent the slot and the lower end of the body, with the blade having cutting edges which extend both downward and radially outward from the body. A guide member which centers the apparatus is included on the lower end of the body which includes resilient rounded projections. A stopping member is included on the upper end of the body. A shank on the upper end of the body allows attachment of the apparatus to a rotary power tool.
    Type: Grant
    Filed: September 7, 1999
    Date of Patent: March 27, 2001
    Inventor: William Ramsey
  • Patent number: 6206616
    Abstract: A tool and method for cutting a circular opening and retaining the cut portion. The tool comprises a shaft having at least one cutting thread and at least one tapping thread, or at least one cutting thread and at least one male screw thread, or only at least one tapping thread, or only at least one male screw thread, or a cutting tip and at least one tapping thread, or a cutting tip and at least one male screw thread, and a cutting member having at least one cutting bit radially displaced from the shaft. The shaft and the cutting member have a mutual rotational axis. An alternative tool has a spaced distance on the shaft between the cutting member and the at least one cutting thread and at least one tapping thread, or the at least one cutting thread and at least one male screw thread, or the at least one tapping thread, or the at least one male screw thread, or the cutting tip and at least one tapping thread, or the cutting tip and at least one male screw thread.
    Type: Grant
    Filed: August 24, 1998
    Date of Patent: March 27, 2001
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Garrett E. J. Smith, Randall T. Hooper
  • Patent number: 6048141
    Abstract: A tool for enlarging the size of an existing bore to a selected enlarged size. The tool has a drill sized to define the enlarged bore, and a guide having a cylindrical body sized so that the guide can be rotated in the existing bore. The guide and drill including cooperating structures for releasably interconnecting the guide and the drill with the guide and drill coaxially aligned whereby, with the guide releasable secured to the drill, the guide can be located within the original hole to guide the cutting action of the drill as it enlarges the original hole.
    Type: Grant
    Filed: January 6, 1998
    Date of Patent: April 11, 2000
    Assignee: Emhart Inc.
    Inventor: Glenn D. Freeman
  • Patent number: 6033161
    Abstract: The invention is a revolving pilot tool. The inventor's revolving pilot has a cylindrical shank which is attached to the tool usually in the center of the bottom of the tool. This shank has a threaded opening in its center. Over the shank is placed a cylindrical bearing. Over this bearing is placed another cylindrical piece that forms the outer surface of the pilot. To hold the bearing and the cylindrical piece upon the shank a screw and o-ring is usually used. This pilot is usually attached to the bottom of the tool to align the tool to an already drilled opening. However, it could be attached above a drill to align the tool to an opening being drilled. The pilot can also align the tool during line boring.
    Type: Grant
    Filed: August 27, 1998
    Date of Patent: March 7, 2000
    Inventor: Richard A. Scheufler, Jr.
  • Patent number: 5997222
    Abstract: This invention is a countersink, counterbore or spotface, external pilot guide 98 which aligns a countersink cutter's edges 170, 171 and 172 into the center of a pre-drilled hole 15. The pilot guide indexes and attaches by lock down screw 165 to the countersink cutter 18 external body hole 160, three pilot legs 100 are recessed into the countersink cutter 18's flute pockets 150 and allows the cutting edges 170, 171 and 172 to extend through the pilot countersink cut-outs 140. Button nose 110 outside diameter comes in a range of sizes dependent on the pre-drilled hole 15 size (example: Pre-drilled hole size 0.375", button nose size 0.372") this allows clearance for friction expansion. All button nose 110 outside diameter's fit the same countersink cutter 18 and all have a hole in the center which allows the flare tube shaft 14 to move freely during the countersinking operation.
    Type: Grant
    Filed: October 30, 1998
    Date of Patent: December 7, 1999
    Assignee: The Boeing Company
    Inventor: Lawrence D. Rissler
  • Patent number: 5947655
    Abstract: A rotary pipe cutting apparatus for removing sections of broken pipe from the bore of an outer pipe. The invention includes a cylindrical body with a longitudinal slot that is angularly offset from the rotational axis of the body and which is tapered in depth and width from top to bottom. A blade is included on the body adjacent the slot and the lower end of the body, with the blade having cutting edges which extend both downward and radially outward from the body. A detachable and interchangeable guide member is included on the lower end of the body, and a stopping member is included on the upper end of the body. A shank on the upper end of the body allows attachment of the apparatus to a rotary power tool.
    Type: Grant
    Filed: September 24, 1997
    Date of Patent: September 7, 1999
    Inventor: William L. Ramsey
  • Patent number: 5931614
    Abstract: An annular bit (1) having an attachable center drill (6) is proposed, in which annular bit (1), on the one hand, reliable holding of the center drill (6) in the annular bit (1) is ensured and, in particular, distributions of the cutting segments (3) on the annular bit (1) differing from the 90.degree. symmetry are made possible. This is achieved according to the invention in that the center-drill holder (4) has at least one push-in pin (11) and the wall of the annular bit (1) has at least one recess (14, 15, 16) for accommodating the push-in pin (11), which pin and recess are formed in such a way that the push-in pin (11) is retained in the recess (14, 15, 16) in the axial direction relative to the annular-bit axis in the locked state of the center-drill holder (4).
    Type: Grant
    Filed: March 19, 1997
    Date of Patent: August 3, 1999
    Assignee: Hawera Probst GmbH
    Inventors: Hans-Peter Meyen, Bernhard Moser
  • Patent number: 5928238
    Abstract: A device is provided for cutting dowels from a bone mass which is easily disassembled for cleaning and sterilization. The dowel cutter includes an axial mounting member having a proximal end portion configured for engagement with a drill chuck and a distal end portion configured to receive a cylindrical cutting blade, an elongated supporting shaft having a distal end portion configured to support a drill guide, and a securement mechanism formed integral with the mounting member for releasably maintaining the relative orientation of the supporting shaft and the axial mounting member during utilization.
    Type: Grant
    Filed: December 27, 1996
    Date of Patent: July 27, 1999
    Assignee: Osteotech, Inc.
    Inventors: Nelson Scarborough, John W. Morris
  • Patent number: 5827018
    Abstract: This invention discloses an improved cutting tool such as a counterbore cutter or piloted reamer that is comprised of a free-spinning pilot connected to the cutting tool. The free-spinning pilot allows the cutting tool to rotate within it while it makes firm contact with a pre-drilled hole in material to be cut improving the location of the cutter relative to the hole.
    Type: Grant
    Filed: October 30, 1996
    Date of Patent: October 27, 1998
    Assignee: McDonnell Douglas
    Inventors: Thomas O. Blankenship, David L. Fritsche
  • Patent number: 5741097
    Abstract: A heat exchanger fin remover includes a first hollow cylindrically shaped member having a closed end and an open end. The closed end is provided with a centrally disposed portion including a centrally disposed threaded aperture adapted to be received by a rotary source of power. The first member open end is provided with an annular cutting ring portion disposed of the distal edge thereof. A second cylindrically-shaped member has a first end and second end adapted to be received within the first hollow cylindrically-shaped member open end. A threaded centrally disposed extending portion is adapted to be received by and cooperate with the first member centrally disposed threaded aperture when the second member is inserted into the first member. The second member other end extends beyond the cutting ring portion disposed on the distal edge of the first member.
    Type: Grant
    Filed: June 20, 1996
    Date of Patent: April 21, 1998
    Inventor: John W. Murphy, II
  • Patent number: 5697935
    Abstract: A device for removing embedded or broken fastening implements from bone, comprises a cylindrical drill bit with a cavity extending internally from a distal end of the bit. The distal end further defines a cutting surface disposed about the opening to the cavity. The interior surface of the cavity defines has a decreasing diameter as one proceeds away from the opening in the distal end, and thus the cutting surface is formed where the radial thickness of the wall of the drill bit is the thinnest. The interior surface of the cavity is susceptible to a galling effect when frictionally engaged by the exterior surface of the fastening implement intended to be removed. The operator places the drill bit around the site of the bone containing the fastening implement to be removed and rotates the bit so as to cut into the bone around the exterior surface of the fastening implement.
    Type: Grant
    Filed: September 12, 1995
    Date of Patent: December 16, 1997
    Assignee: Medex Marketing, Inc.
    Inventors: Ronald D. Moran, G. Allen Gustafson
  • Patent number: 5655855
    Abstract: A tool for precise machining of metal includes two tool parts located one within the other and formed as an inner tool and a tool head respectively, and coupling elements which enable automatic replacement of the tool.
    Type: Grant
    Filed: September 1, 1995
    Date of Patent: August 12, 1997
    Assignee: Mapal Fabrik fur Prazisionswerkzeuge Dr. Kress KG
    Inventors: Dieter Kress, Friedrich Haberle
  • Patent number: 5492439
    Abstract: A multi-purpose arrow shaft assembly tool is provided having several implements capable of being received within a handle. One of the implements is an insert arbor over which point inserts and nock inserts may be placed which the inserts are heated and inserted into the hollow arrow shaft. To aid in preparing the shaft for receipt of the inserts, a facing cutter and a burring tool are also provided. The facing cutter has an arbor which guides the cutting blade of the facing cutter to produce a perpendicular cut relative to the longitudinal axis of the arrow shaft. The burr is housed within the handle so that the interior of the handel serves as a guide when deburring the arrow shaft. A nock adjusting implement is also provided which not only aids in the rotation of a friction fit nock within the nock insert, but also serves to record and transfer the relationship between the groove in the nock and one of the veins so that indexing of one arrow may be transferred to other arrows.
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: February 20, 1996
    Inventor: Louis Rangel
  • Patent number: 5425604
    Abstract: A drilling tool has a drilling crown (12) removably arranged on a shank (10) at its front face, provided with two complementary regions that are mutually separated by chip channels (20) and that have partially circumferential surfaces (48). The drilling tool also has at least two cutting plates (14, 14', 16, 16') secured to the regions of the drilling crown and spaced apart by an angle of 180.degree., as well as a centering drill (26) centrally arranged in the drilling crown in the axial direction that projects over the front face of the latter. The cutting edge (18) of the outermost cutting plate (14) in the radial direction radially projects over the circumferential surfaces (48) of the drilling crown (18), whereas the working area of the innermost cutting plate radially approaches or overlaps the working area of the centering drill (26).
    Type: Grant
    Filed: November 19, 1993
    Date of Patent: June 20, 1995
    Assignee: Komet Praezisionswerkzeuge Robert Breuning GmbH
    Inventors: Gerhard Scheer, Rainer Perthen
  • Patent number: 5316418
    Abstract: This disclosure relates to a hole cutter comprising a spindle having a rearward end shaped to be engaged and rotated by a drive machine, the spindle further having a front end and an axial center bore. A cylindrical blade is attached to the front end of the spindle. A centering pin is supported in telescopic relation within the center bore of the spindle, the pin engaging with the spindle to limit the forward movement of the pin relative to the spindle. A spring is supported in the center bore and urges the pin forwardly relative to the spindle to normally project a portion of the pin forwardly from the spindle and the blade. A center drill is attached to the front end of the spindle and projects forwardly from the blade, the drill having an axial center bore which receives the projected portion of the pin. The drill further has a bit attached to its front end.
    Type: Grant
    Filed: September 21, 1992
    Date of Patent: May 31, 1994
    Assignee: Kabushiki Kaisha Miyanaga
    Inventor: Masaaki Miyanaga
  • Patent number: 5314270
    Abstract: A plunge cutting device for plastic pipe, pipe couplings, plastic flanges and other planar members includes a cylindrical body including slots formed therein, a pilot for guiding the cylindrical body, and cutters adjustably mounted in the slots. A canted relief is formed in the cylindrical body adjoining the leading wall of each slot to facilitate ejection of cut shavings. The pilot may comprise a main pilot and an auxiliary pilot detachably connected to the main pilot. The auxiliary pilot can be replaced with one of a different diameter in accordance with the dimensions of a pipe being processed with the device.
    Type: Grant
    Filed: April 29, 1993
    Date of Patent: May 24, 1994
    Inventors: Wayne N. Lavancy, Darrell G. Stack
  • Patent number: 5312408
    Abstract: An apparatus and method for cutting and suctioning the medullary canal of long bones prior to insertion of an endoprosthesis. A cutter is aligned with the medullary canal and the canal is enlarged. Successively larger cutters are used in conjunction with a guide to center each cutter in the medullary canal. A suction is applied to removed bone cutting and other debris resulting from the procedure.
    Type: Grant
    Filed: October 21, 1992
    Date of Patent: May 17, 1994
    Inventor: Byron L. Brown