Having Product-receiving Chamber Patents (Class 408/207)
  • Patent number: 10196514
    Abstract: The present invention provides a thermoplastic polyester elastomer composition which is flexible and exhibits excellent thermal aging resistance and water resistance. According to the present invention, there is provided a thermoplastic polyester elastomer composition wherein, to 100 parts by mass in total of a thermoplastic polyester elastomer (A) and a modified hydrogenated styrene-type elastomer (B), 0.1 to 10 part (s) by mass of a carbodiimide compound (C), 0.01 to 5 part (s) by mass of an antioxidant of a hindered phenol type (D) and 0.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: February 5, 2019
    Assignee: TOYOBO CO., LTD.
    Inventors: Tadamine Ohashi, Yasuto Fujii, Junichi Nakao
  • Patent number: 9694431
    Abstract: A cutting head for a mill configured to rotate about an axis to remove material from a work piece includes a base surface, a side region connected to the base surface, and a top region connected to the side region. The top region defines a central area and a periphery. A plurality of top teeth are disposed on the top region. The top teeth have cutting edges configured to contact the work piece to remove material. Each cutting edge extends from the central area towards the periphery and includes an axially extending peak portion.
    Type: Grant
    Filed: September 19, 2013
    Date of Patent: July 4, 2017
    Assignee: Nuovo Pignone SrL
    Inventors: Emanuele Cigni, Massimo Guerrini
  • Publication number: 20140369775
    Abstract: The present invention relates to a quick-change attachment means for a hole saw, which is directed to a tool for use with a hole saw for boring holes on a wooden plank, particularly a quick-change attachment means for quickly replacing a longitudinal body, which is a drill bit shank having a driving end, a tool end, and a limiting portion. The present invention is characterized by: it is a quick-change attachment means for assembling a longitudinal body and a hole saw, it has an axial hole for allowing a longitudinal body to move on a quick-change attachment means, a locking component for locking and releasing the longitudinal body on and from the quick-change attachment means. The locking component has a first component and a second component, which when used, the longitudinal body can be easily moved slidably and locked so the shreddings emerging from the hole saw can be cleaned.
    Type: Application
    Filed: June 13, 2013
    Publication date: December 18, 2014
    Inventor: Ying-Tsung Lai
  • Patent number: 8801342
    Abstract: There is provided a drill bit comprising a bit body having a receptor portion formed therein, the receptor portion being filled with a cutting oil; a drilling portion extended from one end of the bit body, having a channel coupled to the receptor portion formed therein, and having an opening formed in one end thereof and connected to the channel; and a cutting portion provided at a periphery of the opening of the drilling portion for drilling a workpiece, wherein the channel of the drilling portion has a small diameter in order that the cutting oil is not discharged outside of the channel by external pressure or gravitational force, and the channel of the drilling portion has a structure in which capillary action occurs due to cut chips flowing through the channel during drilling of the workpiece so that the cutting oil may be discharged by the capillary action.
    Type: Grant
    Filed: April 10, 2009
    Date of Patent: August 12, 2014
    Assignee: EHWA Diamond Industrial Co., Ltd.
    Inventors: Jae-Hyun Hong, Jong-Suk Choi, Do-Ui Hong
  • Patent number: 8388279
    Abstract: There is provided a drilling tool having a substantially columnar tool body to be rotated around an axial line, a cutting edge located at a front end portion of the tool body, and a chip suction hole which is formed inside the tool body in a direction of the axial line for sucking chips generated by the cutting edge. The chip suction hole has a main hole portion extending toward a drill base along the axial line, a narrow hole portion located at a front end of the main hole portion, the narrow hole portion having a cross section smaller than that of the main hole portion and a suction opening located at a front end of the narrow hole portion and opened in the vicinity of the cutting edge, the suction opening having a cross section larger than that of the narrow hole portion.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: March 5, 2013
    Assignee: Tungaloy, Corporation
    Inventor: Takahiro Kitsukawa
  • Patent number: 7814905
    Abstract: A method for forming at least one opening in a receptacle comprises the steps of providing a receptacle having a cover with an exterior surface and an interior surface covering a cavity. A cutting mechanism is also provided having at least one blade. The cover is pierced with the blade, and the blade is moved through the cover to cut a portion of the cover and create an opening in the cover to provide access into the cavity. Further, the cut portion curls on top of the exterior surface as the opening is created.
    Type: Grant
    Filed: September 29, 2003
    Date of Patent: October 19, 2010
    Assignee: Novartis AG
    Inventors: Carlos Schuler, William A. Alston, Derrick Tuttle, Dennis Rasmussen, Stephen R. Demming
  • Publication number: 20100111624
    Abstract: An extender is used with a hole saw or other cutting or drilling bit to drill/saw a passageway, through thick or distant materials in a residential or commercial building, for installation of a fluid pipe, an electrical conduit, or other conduits or elongated members. The extender and methods of using the extender comprise a hollow pipe with only external threads at each end. After the passageway is created, the externally-threaded pipe may be left in place in the passageway for use in its plumbing capacity. No internal threads are present in the interior surface of the pipe, so that turbulent fluid flow through the pipe is prevented or minimized, and, as a result, pitting, damage, and disintegration of the interior wall of the pipe is prevented or minimized.
    Type: Application
    Filed: November 5, 2008
    Publication date: May 6, 2010
    Inventor: BRUCE SEIBOLD
  • Publication number: 20100034608
    Abstract: A hole saw includes a depth stop for limiting the depth of penetration of the hole saw into a workpiece. The blade of the hole saw includes a plurality of slots, one of which is used to receive the depth stop. The depth stop is mounted to the blade by positioning a portion of the depth stop within the slot and sliding the depth stop from an unsecured position to a secured position. Once in the secured position, a locking member is moved within the depth stop to secure the depth stop in place. In use, the blade is advanced through the workpiece until the depth stop contacts the proximal surface of the workpiece.
    Type: Application
    Filed: October 15, 2009
    Publication date: February 11, 2010
    Inventors: WILLIAM NORDLIN, WILBUR KEITH MOFFATT
  • Publication number: 20100003097
    Abstract: There is provided a drilling tool having a substantially columnar tool body to be rotated around an axial line, a cutting edge located at a front end portion of the tool body, and a chip suction hole which is formed inside the tool body in a direction of the axial line for sucking chips generated by the cutting edge. The chip suction hole has a main hole portion extending toward a drill base along the axial line, a narrow hole portion located at a front end of the main hole portion, the narrow hole portion having a cross section smaller than that of the main hole portion and a suction opening located at a front end of the narrow hole portion and opened in the vicinity of the cutting edge, the suction opening having a cross section larger than that of the narrow hole portion.
    Type: Application
    Filed: June 30, 2009
    Publication date: January 7, 2010
    Applicant: Tungaloy Corporation
    Inventor: Takahiro Kitsukawa
  • Publication number: 20090304468
    Abstract: A drill bit has a cutting face for engaging a workpiece. The cutting face forms an annular cut. A mouth is bounded by the cutting face and receives material of the workpiece from within the annular cut, as cutting progresses. An internal passage has a mouth through which this material can leave the bit.
    Type: Application
    Filed: October 23, 2006
    Publication date: December 10, 2009
    Inventor: Paul Edward Duggan
  • Publication number: 20090297285
    Abstract: In a deep hole drilling machine employing an external system for supplying coolant to a drilling portion in which high drilling efficiency can be achieved even if the drilling hole is deep by enhancing the discharge performance of chips from the drilling portion without setting the supply pressure of coolant at a high level, a tubular boring head having discharging openings is attached to the distal end of a hollow boring bar having an interior serving as the chip discharge passage. Bypass holes are provided at a plurality of circumferential positions in the circumferential wall of the boring head to penetrate obliquely such that the outer opening is located closer to the distal end side of the head than the inner opening, and a part of the coolant supplied externally to the drilling portion side flows through the bypass holes into the boring head, thus generating attraction force to the discharge side and accelerating discharge of the chips.
    Type: Application
    Filed: March 5, 2007
    Publication date: December 3, 2009
    Inventors: Takuji Nomura, Nobuyuki Hanabusa
  • Patent number: 7591615
    Abstract: A sheet material cutting machine includes a bristle bed with generally vertically extending bristles having free ends defining a support surface for supporting sheet material to be cut and a carriage movable over the bristle bed and carrying at least one cutting tool to selectively cut the sheet material. A vacuum cleaning system provides vacuum at the carriage to remove cutting debris as the cutting tool is cutting the sheet material. Illustrated embodiments include providing the vacuum through a passage in the cutting tool and providing the vacuum through a cavity in a presser foot.
    Type: Grant
    Filed: March 9, 2007
    Date of Patent: September 22, 2009
    Assignees: Trimont Mfg. Inc, TS Tech Holding Company, Inc.
    Inventors: Steven Li, Yoshimasa Okada
  • Publication number: 20080181738
    Abstract: A tool for forming a tapered seat in wood subflooring for a drain fixture having a predetermined thickness comprising an inverted cup shaped cutting saw having a top and a depending circular skirt having saw teeth formed on the lower terminal edge of the skirt, and an adaptor mounted on the top of said stall saw, at least one cutting blade mounted on said adaptor having a cutting edge disposed angularly to relating to the axis of rotation of said saw and detent means limiting the cutting depth of the tool to form the tapered seat in the subflooring.
    Type: Application
    Filed: January 8, 2008
    Publication date: July 31, 2008
    Inventors: William Capriotti, Frank Linker, Frank Linker
  • Patent number: 7371034
    Abstract: A drilling attachment for use in wet and dry drilling operations includes a housing having first and second fluid conduits, and a drive shaft mounted within the housing and having fluid transmitting first and second end portions in fluid communication with a respective first and second fluid conduit. In one embodiment, at any time one end of the drive shaft is coupled to a drive unit and the other end of the drive shaft is coupled to a core drill bit. In a dry drilling operation, dust is extracted from the core of the drill bit, is passed through the drive shaft and exits the housing via one of the fluid conduits. In a wet drilling operation, fluid such as water is passed through the other of the fluid conduits, through the drive shaft and into the core of the drill bit.
    Type: Grant
    Filed: June 6, 2003
    Date of Patent: May 13, 2008
    Inventor: John Clark
  • Patent number: 7357605
    Abstract: Pilot drill with coupon retainer and hot tapping machine using the same that positively retains a coupon cut out by a hole saw. The pilot drill bit has a shank having a driving end for attachment to a drill driver and a cutting end having a cutting edge thereon, the cutting edge being sized to drill a hole of selected diameter through a workpiece, and a movable retaining finger mounted on the shank adjacent the cutting edge, the movable retaining finger having a first position fitting within the cutting diameter of the cutting edge and a second, extended position where a portion thereof lies outside the cutting diameter to retain on the drill shank a workpiece through which the drill bit may have drilled.
    Type: Grant
    Filed: February 22, 2005
    Date of Patent: April 15, 2008
    Inventor: Donald R. Weiler
  • Patent number: 7137403
    Abstract: A device for producing bypasses under pressure in fluid piping systems, including a horizontal T-shaped body having a radial conduit which can be connected to a connecting collar or seat of the pipe to be bypassed and a radial conduit with a mouth for extracting fluid from the bypass. The device includes an inverted cup-shaped cutter with an overdimensioned tooth crown and, on the rear part thereof, a stepped extension with two threaded areas. One of the threaded areas is attached to the upper neck of the radial conduit and is closed with a cover and gaskets. The device further includes an actuation means which can be positioned on the neck and which is equipped with a feed screw and a shaft which can be connected to the end threaded area of the cutter by means of a male connector and a nut.
    Type: Grant
    Filed: June 11, 2003
    Date of Patent: November 21, 2006
    Inventors: Marcelo Hombravella Abbad, Daniel Guillo Vive
  • Patent number: 6971209
    Abstract: A stabilization system, including a drive head, stabilization cap and anchor is provided for boring an anchor into the ground and engaging the stabilization cap with the surface of the ground. The drive head engages the head of the anchor and the stabilization cap. Accordingly, rotation of the drive head results in rotation of the anchor and stabilization cap. It is by rotation that the anchor bores into the ground, the shaft of the anchor is placed at the center of the stabilization cap, and the stabilization cap engages the surface of the ground. After setting the anchor, the stabilization cap opposes lateral movement of the upper end of the anchor.
    Type: Grant
    Filed: April 28, 2003
    Date of Patent: December 6, 2005
    Assignee: Home Pride, Inc.
    Inventor: William Bradford Blevins
  • Patent number: 6948574
    Abstract: A core bit for abrasive cutting including a cylindrical tube (3) provided at its end surface with cutting or abrasive bodies (2) and a cover (4) provided at an opposite end surface of the cylindrical tube (3) and secured thereto and having, along its central axis (A), a shank (5) to be received in a rotary power tool, with the cover (4) being dimensioned, with respect to a set excitation frequency, for forming a whole number of maximum amplitude oscillations of a concentric flexural oscillation, and the cylindrical tube (3) being dimensioned, with respect to a set excitation frequency, for forming a whole number of maximum amplitude oscillations of axial longitudinal oscillations.
    Type: Grant
    Filed: December 18, 2002
    Date of Patent: September 27, 2005
    Assignee: Hilti Aktiengesellschaft
    Inventors: Till Cramer, Adrian Kauf, Stefan Tichy, Walter Littmann, John van Taack-Trakranen, Peter Alberg
  • Patent number: 6786684
    Abstract: A rotary, tubular hole cutter for quickly cutting holes through materials such as wood, fiberboard, and drywall. The device includes a tubular member with a backing plate attached to one end, with holes in the backing plate that enable the attachment of a conventional heavy-duty hole saw arbor. The device includes three equally spaced gullets, each of which has a cutting bit mounted adjacent to the trailing edge of the gullet, with the cutting face lying in the direction of rotation. The combination of three gullets and cutting bits, along with the cutting bit geometry, enable fast extraction of the “puck” or core from the tubular member after the cut is completed, by hand or other suitable device. The nature and aggressiveness of the cutting action is limited by the geometry of the cutting bits and their relationship to the top surface of the tubular member.
    Type: Grant
    Filed: August 13, 2002
    Date of Patent: September 7, 2004
    Inventor: Robert J. Ecker
  • Patent number: 6758237
    Abstract: A tapping valve having a housing which can be electrically welded to a pipe and which includes a connection piece (2) with a drill (24) therein for drilling the pipe. The connection piece has an inner surface (34). The drill or a bushing (70) in which the drill can be moved axially by a threaded connection (74, 76; 80, 82) is provided with an external thread which engages the inner surface of the connection piece. Inner surface (34) is constructed such that it is initially cylindrical adjacent the external thread (32) and an inner thread can be formed in the inner surface (34) using the external thread (32) by rotating the drill (24) or the thread (70) in an axially forward direction (30). The tapping valve is easy to manufacture and yet offers a high degree of functional reliability.
    Type: Grant
    Filed: December 16, 2002
    Date of Patent: July 6, 2004
    Assignee: Friatec Aktiengesellschaft
    Inventors: Wolfgang Sichler, Matthias Fastanz, Fabian Maier, Gerhard Mueller
  • Patent number: 6609447
    Abstract: A facing tool includes a fixture that securely holds a workpiece, and a fixture retainer that secures the fixture and workpiece against axial and radial movement during a facing operation. In one embodiment, the fixture includes a two piece construction that allows a first piece to be swung away from the second piece to accommodate a variety of sizes of workpieces. Provision is also made for a positive load on the cutting tool to reduce or eliminate tool vibration, as well as a chip shield that deflects debris away from the workpiece. A tool spindle is provided that allows for a plurality of cutting tool positions on the spindle to accommodate different workpiece diameters.
    Type: Grant
    Filed: September 3, 2002
    Date of Patent: August 26, 2003
    Assignee: Swagelok Company
    Inventors: Charles N. Richards, Ronald K. Fisher, Jr., James M. Kane
  • Publication number: 20020114677
    Abstract: A drill bit has an annular cutting edge to form a hole in a workpiece. The drill bit is received within a drill and rotated above 20,000 revolutions per minute. A distal end of the drill bit defines an annular edge surrounding a hollow cavity. The annular edge both cuts and melts the workpiece during formation of the hole. The drill bit also defines an exit hole passing perpendicular to an axial center of the drill bit. The exit hole and the hollow cavity join within an interior of the drill bit to form a material passage way. Core material cut from the workpiece is collected within the hollow area of the drill bit during operation. Rotational forces of the drill bit eject the core material thus allowing the drill bit to cut multiple holes without manually removing core material from the hollow cavity.
    Type: Application
    Filed: February 21, 2001
    Publication date: August 22, 2002
    Inventor: Kiichiro Ishikawa
  • Patent number: 6341925
    Abstract: A plug ejecting hole saw includes a saw cup provided at a front annular edge wall thereof with a plurality of forward protruding angled cutting teeth, and having at a rear end thereof a circular base wall having therethrough a non-circular aperture concentric with the cup. An arbor holder removably attachable to a saw cup of a selected size includes a collar axially slidably holding therewithin a central body having a front nose piece which protrudes axially outward of the collar, the front nose piece having a transverse cross-sectional shape adapted to be inheritably received into the saw cup aperture. The nose piece has formed in longitudinal wall surfaces thereof a pair of diametrically opposed, longitudinally disposed grooves, each of which longitudinally slidably holds therewithin a locking tab member urged forward to abut a separate one of a pair of diametrically opposed, front transversely disposed web ribs formed in the nose piece axially inward of the front transverse face of the nose piece.
    Type: Grant
    Filed: March 2, 2000
    Date of Patent: January 29, 2002
    Inventor: Roger J. Despres
  • Patent number: 6196908
    Abstract: A diamond coated drill capable of drilling large holes in composite materials and then reaming the holes to their correct size includes a pair of prongs extending from a shank. Each of the prongs has a tip, a grinder, and a reamer. The tips initiate a hole, the grinders gradually grind the hole to the proper size, and the reamers control the final diameter of the hole. The tips have a coarse grit diamond coating. The grinders also have a coarse grit diamond coating and are axially tapered toward the tips. The reamers have a fine grit diamond coating and are disposed axially above the grinders and the shank of the drill. The grinders apply a radial load to the composite material resulting in no fiber breakout or splintering. The composite material drilled by the drill naturally falls out of the drill during drilling.
    Type: Grant
    Filed: July 16, 1999
    Date of Patent: March 6, 2001
    Assignee: Storage Technology Corporation
    Inventor: Larry G. Adams
  • Patent number: 6152815
    Abstract: A device for separating bone material from meat tissue in a meat piece, such as a spine from a half part of a slaughtered animal, which device is provided with a support for the meat piece for processing and a separating member with a curved separating edge which is movably driven relative to the support and includes plate material, wherein the separating edge is provided with a series of teeth, each of which is embodied with a guide surface directed toward the inner side of the bend such that when bone material is severed it is carried away to the inside and contamination of the meat material is thereby avoided.
    Type: Grant
    Filed: July 29, 1998
    Date of Patent: November 28, 2000
    Assignee: Stork MPS B.V.
    Inventors: Jan Johannes Meerdink, Gerardus Leenen
  • Patent number: 6152661
    Abstract: A wood coring bit having a base, a central guide shaft, a sleeve extending along the guide shaft, a pair of scribing teeth on the surface of the sleeve adjacent to the work piece, which scores a track into the work piece as the bit rotates and raker tooth on the surface of the sleeve adjacent of the work piece which is aligned to follow in the track scored by the scribing teeth and to cut and lift out the wood from the scored area. A helical slot extends through said sleeve from the raker tooth to receive the chip. A shank aligned with the guide shaft is used to connect the bit to a drill.
    Type: Grant
    Filed: August 17, 1999
    Date of Patent: November 28, 2000
    Inventor: Charles M. Thrasher
  • Patent number: 5980168
    Abstract: A crown drill including a hollow cylindrical carrier body, which is formed of two coaxially arranged tubes connected with each other, and a cutting member attached to the carrier body and projecting axially beyond the leading end of the carrier body.
    Type: Grant
    Filed: November 25, 1997
    Date of Patent: November 9, 1999
    Assignee: Hilti Aktiengesellschaft
    Inventors: Nekhemian Tsypin, Vitalil Skalyga
  • Patent number: 5897593
    Abstract: A lordotic implant has a frusto-conical shape with external threads. Prior to placement of the implant, vertebrae are distracted in a manner to provide a desired lordosis between the vertebrae. The pre-distracted vertebrae are then tapped to provide a tapped bore having a geometry matching the conical geometry of the implant. The threaded implant is then placed within the pre-tapped conical bore.
    Type: Grant
    Filed: July 29, 1997
    Date of Patent: April 27, 1999
    Assignee: Sulzer Spine-Tech Inc.
    Inventors: Douglas W. Kohrs, Paul M. Sand
  • Patent number: 5865847
    Abstract: A lordotic implant has a frusto-conical shape with external threads. Prior to placement of the implant, vertebrae are distracted in a manner to provide a desired lordosis between the vertebrae. The pre-distracted vertebrae are then tapped to provide a tapped bore having a geometry matching the conical geometry of the implant. The threaded implant is then placed within the pre-tapped conical bore.
    Type: Grant
    Filed: July 29, 1997
    Date of Patent: February 2, 1999
    Assignee: Sulzer Spine-Tech Inc.
    Inventors: Douglas W. Kohrs, Paul M. Sand
  • Patent number: 5820315
    Abstract: A shaft sized to fit conventional hole saw mandrels has two set screw flats and a retaining head. A cylindrical roller is mounted on the shaft against the retaining head, and a cylindrical spacer is mounted by set screws on the shaft above the roller. The roller is sized to fit the diameter of holes typically desired to be enlarged. The shaft, roller and spacer assembly is mounted in the mandrel of a conventional hole saw using the second set screw flat so that the roller extends beyond the cutting edge of the saw. The roller is inserted into the existing hole and guides the hole saw as the hole saw is turned by a drill or other means. In an alternate embodiment, the roller has side flats, allowing the device to enlarge oblong holes having parallel sides.
    Type: Grant
    Filed: May 30, 1997
    Date of Patent: October 13, 1998
    Inventor: Bobby J. Collard
  • Patent number: 5813802
    Abstract: A center drill used for machining a hole in a work piece which is adapted to be partially enclosed in a cup shape drill member in a side view thereof, includes a drill portion provided on a leading end of the center drill, and a dust extractor radially outwardly extending from a portion of the center drill which is enclosed in the cup shape drill member.
    Type: Grant
    Filed: November 27, 1996
    Date of Patent: September 29, 1998
    Assignee: House B.M. Co., Ltd.
    Inventors: Kunio Ajimi, Tsuneyoshi Ajimi
  • Patent number: 5803678
    Abstract: An improved hole saw for cutting holes having a cylindrical shape that includes, along its cutting edge, a plurality of repetitive groups of saw teeth having at least four radially displaced trailing teeth. The displacement of each trailing tooth is such that it has a substantially greater displacement than for any other tooth of said group preceding said trailing tooth. The displacement of each tooth being such that the cutting edge thereof is characterized as being movable along a cutting path different from the cutting paths of the other teeth of the group as the hole saw is rotated whereby each tooth cuts chips of uniform size. Each group of teeth may include a raker tooth having no substantial displacement with respect to the side surfaces of the hole saw. The raker tooth may be the same height or of greater height than the trailing teeth.
    Type: Grant
    Filed: June 20, 1995
    Date of Patent: September 8, 1998
    Assignee: American Saw & Mfg. Company
    Inventors: William B. Korb, James R. Holston, Stephen A. Hampton
  • Patent number: 5626444
    Abstract: A rotary cutting tool is disclosed having an evacuation bore and generally radially extending passages to conduct away material being removed by the tool cutters. In one embodiment, intersecting cutters are disposed at the intersections of right and left hand flutes in the tool shank. In another embodiment, the cutters are radially disposed on a cutting disc.
    Type: Grant
    Filed: August 19, 1994
    Date of Patent: May 6, 1997
    Inventor: Jonathon Campian
  • Patent number: 5556399
    Abstract: A coring drill used to harvest bone from a donor area of the human body is described. The drill bit in its preferred embodiment is formed with a cylindrical, hollow shaft and a half-conical tip or cutting head. The cutting head is provided with a sharpened edge which meets at an apex with a non-sharpened edge, forming an obtuse angle of approximately 120.degree.. The sharpened edge is configured to cut into bone when the drill bit is rotated in a clockwise direction, with the apex directed against a section of bone, the cutting edge sheers off fragments of bone which are then drawn upwardly through the hollow shank of the drill bit. As the drill bit is forced downwardly, continuous cutting action occurs and the morselized bone can then be removed, as by use of the described hand tool, from the shank and used to build-up bone in other areas to which it is transplanted.
    Type: Grant
    Filed: February 14, 1995
    Date of Patent: September 17, 1996
    Inventor: Randall J. Huebner
  • Patent number: 5425395
    Abstract: The tapping apparatus includes a body that receives a cutter and sleeve. The cutter and sleeve advance together to form an opening in the sidewall of a main conduit about which the body is secured. The sleeve includes external threads that grip into the conduit sidewall. Thereafter, retraction of the cutter leaves the sleeve in place to secure the tapping apparatus to the conduit and establish fluid communication therethrough. The cutter and sleeve preferably have different thread pitches so that the sleeve advances at a slightly faster rate than the cutter. This facilitates sealing engagement between the external surface of the main conduit and the body. Additionally, a one-way drive arrangement is provided between the sleeve and cutter so that once the sleeve is positioned in place, the cutter can be removed without altering the location of the sleeve.
    Type: Grant
    Filed: September 13, 1994
    Date of Patent: June 20, 1995
    Assignee: Perfection Corporation
    Inventor: Michael Brennan
  • Patent number: 5408901
    Abstract: A packing extractor tool (10 ) for removing packing (27) from a valve assembly (20), is described. The extractor tool is comprised of an arcuate sidewall (11) having an opening (17) that enables the extractor tool to be mounted around a valve stem (25) without removing the handle wheel (37) from the valve stem. One end of the sidewall of the extractor tool is provided with sawblade teeth (13). The other end of the sidewall has a handle (15) that enables the extractor tool to be rotated around the valve stem to that the sawblade teeth can cut into and disintegrate the packing. A distal portion (15B) of the handle can be angled upward which helps a user apply a downward force to the extractor tool so that the sawblade teeth can penetrate into and disintegrate the packing.
    Type: Grant
    Filed: August 15, 1994
    Date of Patent: April 25, 1995
    Inventor: Aaron L. Bishop
  • Patent number: 5393175
    Abstract: A diamond core drill using a sealed core bit is fastened centrally by means of a hollow shaft with a slanted cut at one end, that is used in a wedging manner to secure the tool against the work surface. This eliminates the need for an exterior frame and thus permits the use of large hole saws up to 48", held by a simple and economical tool. The tool feed towards the surface is controled via an advance control nut that screws on the filleted part of the shaft. The tool has a water feed system that entraps the water in a chamber formed by the barrel of the saw and the surface to be cut, that forces the water to seep along the sawing gap thus facilitating lubrification of the core bit. The resulting configuration is such as to allow for a single tool operator.
    Type: Grant
    Filed: June 18, 1993
    Date of Patent: February 28, 1995
    Inventor: Leo Courville
  • Patent number: 5376092
    Abstract: A reamer for shaping a socket, such as a hip socket, comprising a cutting head located at one end of a rotatably driven shaft and having a hemispherical portion with a hemispherical exterior surface. The hemispherical portion containing an open substantially hollow chamber and helical openings such as slots, in said hemispherical portion connecting between the exterior surface and the chamber. The trailing portion of each of the openings having a cutting or trailing edge raised slightly above the leading edge of the opening or slot to move material from the socket into the chamber during rotation of the cutting head. The cutting edges having serrations thereon. At least two cutting edges extending across the polar region of the cutting head. A stem extending from the interior center point of the substantially hollow chamber and extending along the polar axis of the hemispherical reamer for connecting and disconnecting the cutting head to a rotatable source.
    Type: Grant
    Filed: November 18, 1993
    Date of Patent: December 27, 1994
    Assignee: Orthopaedic Innovations, Inc.
    Inventors: Todd J. Hein, Mike K. Utley
  • Patent number: 5327923
    Abstract: A valve for installation on a flow line while the flow line is under pressure. The valve includes a two-part valve body and a valve cartridge. Each body portion has a semi-cylindrical channel sized to mate with the flow line. The body portions are secured together with a portion of the flow line enclosed and sealed in the channels of the body portions. A throughbore extends through the two body portions and fully intersects the channels of the two body portions. One end of the throughbore is adapted for attachment of a cutting tool, which is used to cut out the portion of the flow line disposed in the throughbore. After the flow line is cut, the valve cartridge is directed into operating position. A valve stem nut, a valve cap, a valve plug, gaskets, seals and connectors are provided to close and seal both ends of the throughbore.
    Type: Grant
    Filed: February 12, 1993
    Date of Patent: July 12, 1994
    Inventors: Louis P. Eischen, Ken Winders
  • Patent number: 5316037
    Abstract: A valve adapted for insertion in a pressurized fluid flow line for blocking and sealing the flow of fluid through the line without disconnecting the line and to maintain the pressure in the upstream end of the line. The valve includes two body portions which may be clamped on the fluid flow line to form a valve body in which is adjustably mounted a shaft carrying an annular hole cutter and a tubular seal. The shaft is rotatable for driving the annular hole cutter through the line and to position the tubular seal in the hole cut through the line to block and seal flow through the downstream portion of the line.
    Type: Grant
    Filed: August 30, 1993
    Date of Patent: May 31, 1994
    Assignee: Jomar International, Ltd.
    Inventor: Joseph R. Martin
  • Patent number: 5299893
    Abstract: A disposable cutter which has a plurality of cutting edges. The cutter has perforations adjoining the cutting edges. The cutter defines an axis of rotation. The cutter is joined to a transparent bowl. The bowl is concentric with the axis of rotation. The bowl has a bottom tool driver opening concentric with the axis of rotation.
    Type: Grant
    Filed: March 27, 1992
    Date of Patent: April 5, 1994
    Assignee: Othy, Inc.
    Inventors: Paul E. Salyer, Brian D. Salyer
  • Patent number: 5205685
    Abstract: A hole saw, especially suited for sheet-metal work, incorporates an annular ring surrounding the body of the saw, and located at an end adjacent its cutting edge. In accordance with the invention, the diameter of the ring is selected larger than that of the cutting teeth, to operate as a "stop" in preventing the saw from undesirably extending into the cavity where the saw makes its cut, beyond a predetermined amount. As will be described, the annular ring allows for a constant, equal pressure to be applied in using the hole saw across a work-piece while, at the same time, limiting any accidental damage to be done inside the work-piece if the hole saw were to penetrate too far.
    Type: Grant
    Filed: October 5, 1992
    Date of Patent: April 27, 1993
    Inventor: Henry R. Herbert
  • Patent number: 5203653
    Abstract: A reamer for shaping a socket, such as a hip socket, comprising a cutter head located at one end of a rotatably driven shaft and having a hemispherical portion with a hemispherical exterior surface, the hemispherical portion containing a closed hollow chamber, and helical openings, such as slots, in said hemispherical portion connecting between the exterior surface and the chamber, the trailing portion of each of the openings having a cutting edge raised slightly above the hemispherical surface to move material from the socket into the chamber during rotation of the cutter head, and an attachment element for connecting and disconnecting the cutter head and the drive shaft.
    Type: Grant
    Filed: December 30, 1991
    Date of Patent: April 20, 1993
    Assignee: Pfizer Hospital Products Group, Inc.
    Inventor: John W. Kudla
  • Patent number: 5105844
    Abstract: A T-branch formation device using two identical side members to form a snap-on saddle around a resilient plastic pipe and a screw-in coupling cutter which cuts through resilient piping, retains the cut piece, and simultaneously provides a threaded surface for attaching a branch tubing which forms a leak-proof connection.
    Type: Grant
    Filed: September 16, 1991
    Date of Patent: April 21, 1992
    Inventor: Lloyd H. King, Sr.
  • Patent number: 5069584
    Abstract: A hollow drilling tool is made up of an axially extending tubular carrier part, a cutting body at one end of the carrier part, and guide elements located in the axial direction of the carrier part between the cutting body and the carrier part. The radially outer surface of each guide element is in alignment in the axial direction of the carrier part with the radially outer surface of the cutting body. The guide elements guide the hollow drilling tool in a borehole formed by the cutting body.
    Type: Grant
    Filed: January 22, 1990
    Date of Patent: December 3, 1991
    Assignee: Hilti Aktiengesellschaft
    Inventors: Josef Obermeier, Eugen Magyari, Walter Ritt, Ernst Wohlwend, Horst-Detlef Gassmann, Peter Cavada
  • Patent number: 5058620
    Abstract: A method for cutting an opening in the side of a pipe carrying gas under pressure, providing a bypass through the cut, and terminating the bypass when the pipe has been repaired, and apparatus for performing steps of the method. A branching saddle is bonded to the pipe, and a fixture is mounted on the pipe at the saddle. The fixture comprises a barrel through which various tool-insertion assemblies may be inserted.The tool-insertion assemblies typically include a shaft carrying a tool on one of its ends, a driving hub affixed near its opposite end, and a sealing plug slidably mounted axially on the shaft between the tool and the driving hub. The tools enter into the fixture's bore through a tool inlet, into which the sealing plug of the insertion assembly is screwed for a pressure-tight fit. The tools are individually inserted, in succession, through the fixture's bore and through the wall of the pipe.
    Type: Grant
    Filed: October 29, 1990
    Date of Patent: October 22, 1991
    Inventor: Stephen L. Jiles
  • Patent number: 5044393
    Abstract: A method for cutting an opening in the side of a pipe carrying gas under pressure, providing a bypass through the cut, and terminating the bypass when the pipe has been repaired, and apparatus for performing steps of the method. A branching saddle is bonded to the pipe, and a fixture is mounted on the pipe at the saddle. The fixture comprises a barrel through which various tool-insertion assemblies may be inserted.The tool-insertion assemblies typically include a shaft carrying a tool on one of its ends, a driving hub affixed near its opposite end, and a sealing plug slidably mounted axially on the shaft between the tool and the driving hub. The tools enter into the fixture's bore through a tool inlet, into which the sealing plug of the insertion assembly is screwed for a pressure-tight fit. The tools are individually inserted, in succession, through the fixture's bore and through the wall of the pipe.
    Type: Grant
    Filed: October 26, 1990
    Date of Patent: September 3, 1991
    Inventor: Stephen L. Jiles
  • Patent number: 4966503
    Abstract: A drill bit for drilling a hole in layered material where the first layer encountered by the bit is softer than the second layer and where the second layer encountered by the bit produces chips capable of abrading the first layer. The drill bit comprises a solid shaft having a cutting tip, an internal bore for conducting flushing fluid to the tip and a flute for conveying the fluid and the chips away from the tip. A collar fixed to the outer surface of the shaft prevents the chips from contacting the bore drilled in the first layer.
    Type: Grant
    Filed: May 30, 1989
    Date of Patent: October 30, 1990
    Assignee: The Boeing Company
    Inventor: Jerry W. Davidson
  • Patent number: 4929128
    Abstract: A drill assembly for use with a drill motor having a chuck is provided for drilling large holes in masonry materials. The drill assembly includes a tube having at least one masonry cutting element attached to one end. A rod has one end adapted to be received within and rotatably driven by the chuck of the drill motor while a clutch assembly mechanically connects the other end of the rod to the tube. The clutch assembly is movable between an engaged position and a released position. In its engaged position, the clutch assembly mechanically connects the rod and tube together so that they are rotatably driven in unison with each other by the drill motor. Conversely, in its released position, the clutch assembly allows relative rotational movement between the rod and the tube.
    Type: Grant
    Filed: June 23, 1989
    Date of Patent: May 29, 1990
    Inventor: Robert J. Affleck
  • Patent number: RE33598
    Abstract: A facing cutter for making annular holes which includes a substantially cylindrical jacket having inner and outer peripheries and a lower end. A plurality of axial teeth are spaced circumferentially at the lower end of the jacket with each tooth having an inner and outer cutting edge which extends helically along the jacket. The teeth are of alternately different design, with a different angle formed by the intersection of the inner and outer cutting edges on every other tooth and the axial length of the alternate teeth being different. An initial tooth cuts the central portion of a groove to be formed to a deeper level than an alternate tooth that cuts the side portions of the groove to be formed.
    Type: Grant
    Filed: March 23, 1990
    Date of Patent: May 28, 1991
    Assignee: Walker-Hagou B.V.
    Inventor: Roy Bijl