Of Wire, Rod, Tube Or Filament Patents (Class 156/158)
  • Publication number: 20030168154
    Abstract: A composition of phosphate-based glass fiber capable of being fused directly to a silica-based glass fiber includes from about 60 mole % to about 75 mole % P2O5, from about 8 mole % to about 30 mole % X203, from about 0.01 mole % to about 25 mole % of R2O. X is selected from the group of Al, B, La, Sc, Y and combinations thereof. R is selected from the group of Li, Na, K and combinations thereof. Optionally, the phosphate-based glass fiber may include 0.5 to 10 mole % MO, where M is selected from Mg, Ca, Sr, Ba, Zn, and combinations thereof. The composition preferably further includes from about 0.5 mole % to about 15 mole % of an additional component from the group of Si, Ge, Pb, Te and combinations thereof.
    Type: Application
    Filed: February 14, 2003
    Publication date: September 11, 2003
    Inventors: John D. Myers, Michael J. Myers
  • Publication number: 20030141009
    Abstract: A laser strikes and aseptically heats or sterilizes the end of two flexible tube ends for connection. Tube holders are pushed toward each other to bring the tube ends into contact. A weld detector checks the characteristics of the weld. A laser optics assembly may be used to change the direction of the laser and focus the laser at the tube ends. In addition, a crimping device is used to compress a single flexible tube for disconnection. The laser strikes the compressed area. The crimping device continues to pinch the area and forms a seal in the tube. The tube is separated into two tube segments, each segment has a sealed end.
    Type: Application
    Filed: January 31, 2002
    Publication date: July 31, 2003
    Inventors: Frank J. Landherr, John A. Biewer, Shahid Din, David Do, Rick Gilbert, James J. Alberti, David W. Pennington, Joe Romack
  • Publication number: 20030143352
    Abstract: The present invention provides a polymer blend for fabricating a laser-weldable article having a first component of a material not thermally responsive to a laser beam and selected from the group consisting of polyolefins, ethylene and lower alkyl acrylate copolymers, ethylene and lower alkyl substituted alkyl acrylate copolymers, ethylene vinyl acetate copolymers, polybutadienes, polyesters, polyamides, and styrene and hydrocarbon copolymers; a second component of a laser responsive material having low solubility in an aqueous medium and present in an amount by weight of from about 20 ppm to about 2000 ppm; and the blend being sufficiently thermally responsive to exposure to a laser beam having a wavelength within a range of wavelengths from about 700 nm to about 1500 nm to at melt upon exposure to the laser beam for a short period of time.
    Type: Application
    Filed: September 20, 2002
    Publication date: July 31, 2003
    Inventors: Tahua Yang, Sherwin Shang
  • Patent number: 6596122
    Abstract: A method for production of simultaneous lap and butt joints directs electromagnetic radiation (12) through a radiation transmitting material (40) to an absorbing material (44a, 44b, and 44c) that absorbs radiation (12) with the generation of heat. The heat provides sufficient molten material in interfaces (50a, 50b, and 50c) to fuse and bond: 1) pipe ends (14, 24) to each other in a butt joint (22), 2) pipe end portion (16) to sleeve (40) in a lap joint (28a), and 3) pipe end portion (26) to sleeve (40) in a lap joint (28b). Use of a sufficiently clear material for sleeve (40) allows visual inspection of joints (22, 28a, and 28b). Butt joint (22) can be formed by conductive heating without absorbing material (44a) to provide a smooth interior bore useful for transporting high purity fluids without risk of absorbent contamination or debris and organism collection in gaps found in previous joining techniques.
    Type: Grant
    Filed: December 29, 2000
    Date of Patent: July 22, 2003
    Assignee: Edison Welding Institute, Inc.
    Inventors: Alexander Savitski, Robert A. Grimm
  • Patent number: 6572719
    Abstract: A process and apparatus are provided for positioning a plurality of reinforcement strands including a spliced reinforcement strand in a desired spatial relationship prior to a forming die. The process comprises the steps of: positioning a plurality of uninterrupted reinforcement strands moving toward a forming die so that the uninterrupted strands extend from a first location upstream of the forming die to the forming die in a space-apart converging configuration; and positioning at least one spliced reinforcement strand so that it extends generally centrally through the center of the converging configuration of the uninterrupted strands. The apparatus comprises first and second guide structures.
    Type: Grant
    Filed: August 10, 2001
    Date of Patent: June 3, 2003
    Assignee: Owens-Corning Fiberglas Technology, Inc.
    Inventors: David L. Fecko, David V. Stotler, Glen F. Day, Brent A. Carver
  • Publication number: 20030089446
    Abstract: The invention concerns an apparatus wherein each pair of jaws (42) is mounted on a carriage (29, 31) freely mobile on longitudinal slide rails and subjected to the action of springs (28, 32) pushing them towards a retractable stop borne by the frame of the other carriage, while the frame (1) of one of the carriages (29) is itself mounted sliding on transverse slide rails (8) and is coupled to drive means (10) capable of moving it on said rails (8) between an initial position, wherein the pairs of jaws (42, 43) are aligned, and a connecting position, wherein the pairs of jaws are offset and the retractable stops retracted, and the hot blade is borne by a carriage vertically mobile, in both directions, on vertical slide rails (20), said carriage (27) having the shape of a wedge whereof the two lateral sides are profiled and co-operate each, after the retractable stops are retracted and while the blade (27) is being raised, with a roller having a horizontal axis projecting rearward of the corresponding frame or
    Type: Application
    Filed: October 15, 2002
    Publication date: May 15, 2003
    Inventors: Jean-Francois Baradon, Pierre Francois Leon Mellinger, Michel Thoinet
  • Patent number: 6559296
    Abstract: The present invention relates to an apparatus for detecting nucleic acid molecules such as target DNA molecules and mRNA molecules by using a DNA probe, and provides a DNA capillary, comprising a fluid passageway formed of a cylindrical capillary made of glass, a plurality of independent probe regions formed in the inner wall of the fluid passageway, and DNA probes each immobilized in the probe region, the immobilized DNA probes differing from each other. For performing the measurement, a sample is introduced through an open portion into the capillary so as to perform reaction and, then, fluorimetry.
    Type: Grant
    Filed: February 21, 2001
    Date of Patent: May 6, 2003
    Assignee: Olympus Optical Co., Ltd.
    Inventor: Akira Suyama
  • Publication number: 20030079332
    Abstract: Apparatus and methods permit splicing or joining a plurality of tubing ends. A central tubular member has a fluid passage therethrough. The tubing ends are mounted over the extremities of the tubular member, and are held in place by a multi-part sleeve around the central member and cooperating detents (on the exterior of the tubular member and on the interior of the sleeve) that pinch or bite the tubing when the sleeve is actuated (such as via a turnbuckle action) to force cooperating pairs of the detents toward each other.
    Type: Application
    Filed: August 16, 2002
    Publication date: May 1, 2003
    Applicant: Olson Irrigation Systems
    Inventor: Donald O. Olson
  • Patent number: 6554930
    Abstract: An apparatus for welding monofilaments at a loom makes possible a method for a continuous process for weaving monofilaments into fabric. The apparatus comprises a stand (15) on which is mounted welding apparatus (16) and a filament alignment block (20). In the method, a monofilament (30a) in the loom is welded to the leading end of a monofilament (30) on a new spool of monofilament. By welding new monofilament to monofilament in the loom, restringing of the loom is avoided.
    Type: Grant
    Filed: May 16, 2001
    Date of Patent: April 29, 2003
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Robert John Gartland, Kenneth Michael Kot, Jimmy Lee Richards
  • Publication number: 20030070743
    Abstract: In a technique for joining ends of coaxial tubular members, adhesive is applied to their external surfaces at their ends and an expandable insert assembly is positioned longitudinally within them so as to be coextensive with the adjoining ends. Planar side pieces on the assembly are advanced into conforming engagement with the inside surfaces of the tubular members at their adjoining ends, the adhesive is cured to fixedly join the tubular members together, then the side pieces are withdrawn. Simultaneously, the external surfaces of the tubular members are clamped in the region of their adjoining ends until full curing of the adhesive has been achieved. The insert assembly includes a bladder of flexible material with planar side pieces being attached to the inside or outside surfaces and the insert assembly advanced so the bladder engages the internal surfaces of the tubular members at their adjoining ends.
    Type: Application
    Filed: October 17, 2001
    Publication date: April 17, 2003
    Inventors: John Kesapradist, Brian G. Robins
  • Patent number: 6548010
    Abstract: A method of bonding tubular members comprising the steps of, providing a first generally tubular member having a bonding portion disposed proximate a bonding end thereof, an ancillary end, and a lumen extending therethrough, the first tubular member including a support member encased in a substrate material, the support member having a plurality of filaments providing a second generally tubular member having a bonding portion disposed proximate a bonding end thereof, an ancillary end, and a lumen extending therethrough, stripping a portion of the substrate material of the first tubular member from the filaments of the support member of the first tubular member proximate the bonding portion thereof to create a plurality of exposed filaments, inserting the exposed filaments into the lumen of the second tubular member, positioning the bonding portion of the first tubular member proximate the bonding portion of the second tubular member, and heating the bonding portion of the first tubular member and the bonding
    Type: Grant
    Filed: March 23, 2000
    Date of Patent: April 15, 2003
    Assignee: SciMed Life Systems, Inc.
    Inventors: Timothy M. Stivland, Michael W. Johnson
  • Patent number: 6540859
    Abstract: A method for splicing hose comprises applying a non-toxic anti-bonding agent (117) to an inside surface (102) of a first end (104) of a first hose segment (101). The first end (104) of the first hose segment (104) is then inserted into a second end (101) of a second hose segment (107) so that the first hose segment end (104) is completely circumscribed by the second hose segment end (110). This creates an overlapping portion (113) of the two hose segment ends (104) and (110). A structural integrity material (120) is applied to the overlapping portion (113) proximate the first end (104), and then the first hose segment end (104) and the second hose segment end (110) are then fused together to create a hose splice (100).
    Type: Grant
    Filed: October 16, 2001
    Date of Patent: April 1, 2003
    Assignee: The Toro Company
    Inventor: Alfred Alvidrez
  • Patent number: 6521072
    Abstract: A method is disclosed for forming a substantially flush joint or coupling between two profile wall thermoplastic pipes. The method comprises removing substantially all of the helical rib and inner wall of a first pipe for a distance from an end of the first pipe and removing a portion of the helical rib for a distance from an end of a second pipe. By so doing, the outer wall of the second pipe can be deflected radially inward and the end of the second pipe can thereby be coupled with the first pipe by overlapping the outer walls adjacent the ends of the first and second pipes, with the outer wall of the first pipe being on the exterior. When overlapped, the second walls of both the pipes can then be fused together. Alternatively, the outer wall of the first pipe can be removed rather than the inner wall, and the inner wall of the second pipe deflected radially outward such that the inner wall of the second pipe can be positioned around the inner wall of the first pipe and fused thereto.
    Type: Grant
    Filed: August 24, 2000
    Date of Patent: February 18, 2003
    Assignee: C&S Intellectual Properties, LLC
    Inventor: Steve Campbell
  • Publication number: 20030021938
    Abstract: Methods for creating relatively wide surface coverings and surface covering components by seaming together relatively narrow surface coverings and surface covering components are disclosed. The surface coverings are seamed together with a barely visible or invisible seam by lining up two sheets together and taping them together on one surface at the seam. In one embodiment, the taped surface is the top surface of a surface covering, i.e., the surface that includes the design. The sheets can include thermoplastic polymers. The taped surface is placed downward, and a gluing surface is exposed. The gluing surface is the surface on the two surface coverings to be joined that are in contact with each other. The gluing surface can either be exposed by raising the taped region or by lowering one or both sides adjacent the taped region. A suitable adhesive is applied to the gluing surface, and the raised region is lowered or the lowered sides are raised to the original height.
    Type: Application
    Filed: July 27, 2001
    Publication date: January 30, 2003
    Inventors: David A. Kraft, Jennifer W. Sager
  • Patent number: 6500285
    Abstract: A method of bonding a first tubular member to a second tubular member to form a catheter shaft. The method comprising the step of providing a first tubular member including a distal end, a proximal end, and a lumen extending between the distal end and the proximal end thereof. The method further including the step of providing a second tubular member including a distal end, a proximal end, and a lumen extending between the distal end and the proximal end thereof. The method further including the steps of inserting a joining portion of the first tubular member into a joining portion of the second tubular member and applying heat the joining portions.
    Type: Grant
    Filed: August 23, 1999
    Date of Patent: December 31, 2002
    Assignee: SciMed Life Systems, Inc.
    Inventors: Henry John Pepin, Michael William Sterud, Anne Victoria Rossi
  • Patent number: 6488799
    Abstract: Core-type structures are formed by extruding elongated tubular members or sheets of a thermoplastic material that are subsequently cut into segments or plates having a defined length and then assembled into a bundle. The bundle is then simultaneously cut at a number of spaced-apart locations along the length of the bundled segments, or plates, whereby a plurality of separate core structures are simultaneously formed.
    Type: Grant
    Filed: October 25, 1999
    Date of Patent: December 3, 2002
    Assignee: Newcourt, Inc.
    Inventors: Calvin L. Court, Tawne L. Castorina, Calvin L. Court, Melvin T. Court
  • Patent number: 6485593
    Abstract: An apparatus and method for sterilely coupling two bodies of fluids in fluid communication utilizes a clamp transportable into a sterile enclosure. A pair of tubing segments, each communicating with one of the fluid bodies, is preferably retained in the clamp and transported into the sterile enclosure. The clamp maintains the shape of the tubing segments during the process. Portions of the tubing segments are severed within the enclosure and the remaining ends are heated. The heat may be provided with a hollow disk into which is blown heated air. The ends of the tubing segments are transported out of the enclosure and bonded together while held within the clamps. The clamps prevent deformation of the tubing segments during the process. The process may be partially or fully automated.
    Type: Grant
    Filed: October 26, 1999
    Date of Patent: November 26, 2002
    Inventor: Kurt J. Christoffersen
  • Patent number: 6485592
    Abstract: A continuous precursor fiber bundle for manufacture of carbon fibers comprising a plurality of precursor fiber bundles each of which comprises at least 30,000 filaments, having a joined portion formed by joining at the terminal end of one of the precursor fiber bundles and the starting end of another one of the fiber bundles directly or through an intervening fiber bundle comprising a plurality of filaments, wherein the individual filaments at the joined portion are substantially uniformly interlaced with each other and wherein the interlacing of filaments is in a pattern selected from the group consisting of continuous substantially uniform interlacing in the transverse direction of said fiber bundles, interlacing at many joints on the joining portion, and interlacing of the entire face of said joining portion.
    Type: Grant
    Filed: October 13, 1998
    Date of Patent: November 26, 2002
    Assignee: Toray Industries, Inc.
    Inventors: Kousuke Yoshimura, Toshihide Sekido, Makoto Endo, Takao Sano
  • Publication number: 20020170654
    Abstract: In a method of the present invention for producing an unvulcanized-rubber/steel-wire composite, steel wires are continuously drawn, and the drawn steel wires are not taken up but fed to a rubber coater so that the steel wires are coated with unvulcanized rubber. An apparatus of the present invention for producing an unvulcanized-rubber/steel-wire composite comprises a wire drawer for drawing steel wires continuously, and a rubber coater for coating the steel wires with unvulcanized rubber, and the steel wires drawn by the wire drawer are not taken up but are led to the rubber coater.
    Type: Application
    Filed: December 13, 2001
    Publication date: November 21, 2002
    Inventor: Susumu Imamiya
  • Patent number: 6463979
    Abstract: A buckle pivotally arranged in a movable clamp 12 of a first tube holder 1 is attached with play to a buckle 120 pivotally arranged in a movable clamp 82 of a second tube holder 2. When tubes are held in the first and second tube holders 1 and 2, release of the tubes from the holders 1 and 2 is prevented by a movement of a plunger 203 in correspondence of excitation and demagnetization of a solenoid 202 for a predetermined period of operation of the apparatus after holding the tubes (i.e., for a period required from the locking of the buckle 120 until the completion of moving-down of a wafer holder).
    Type: Grant
    Filed: April 25, 2000
    Date of Patent: October 15, 2002
    Assignee: Terumo Kabushiki Kaisha
    Inventors: Hiroaki Sano, Narukuni Nakada, Akihiko Iguchi, Yoshiyuki Yamada, Masashi Yanagawa, Takeshi Minatani
  • Patent number: 6375774
    Abstract: An intravascular medical catheter and method of manufacturing a medical catheter are provided herein. The medical catheter includes a catheter shaft having an inner liner, a reinforcing section and an outer shell. As provided herein, a groove is formed in the outer shell of the catheter shaft near a distal end of the catheter shaft with a laser. The groove can be filled with a fill section which is made of a relatively soft material. This improves the flexibility of the distal end so that the medical catheter has improved tracking and movement in the body vessel. Further, because the reinforcing section is continuous under the groove, the catheter shaft is durable and inhibits kinking during movement in the body vessel.
    Type: Grant
    Filed: May 28, 1999
    Date of Patent: April 23, 2002
    Assignee: Medtronic, Inc.
    Inventors: Peter Lunn, Nasser Rafiee, Charles Daugherty
  • Patent number: 6358348
    Abstract: A method of butt welding two generally rod-shaped structures of a fluorine-containing plastic material includes the steps of placing end faces of the structures in a contacting relationship by supporting each structure in a clamping device, applying heat to the end parts of the structures that project from the clamping device, and pressing the end faces together by moving the clamping devices towards each other to apply a welding pressure of between 0.05 and 0.5 Nmm−2 perpendicular to the end faces. The heating element surrounds the end parts along a substantially closed contour, and may comprise two segments which can be hinged into an open or closed position to be removed from the completed weld.
    Type: Grant
    Filed: October 7, 1999
    Date of Patent: March 19, 2002
    Assignee: Single Buoy Moorings Inc.
    Inventors: Jack Pollack, Robert Martin Hobson, René Perratone
  • Publication number: 20010045257
    Abstract: A method of bonding a first tubular member to a second tubular member to form a catheter shaft. The method comprising the step of providing a first tubular member including a distal end, a proximal end, and a lumen extending between the distal end and the proximal end thereof. The method further including the step of providing a second tubular member including a distal end, a proximal end, and a lumen extending between the distal end and the proximal end thereof. The method further including the steps of inserting a joining portion of the first tubular member into a joining portion of the second tubular member and applying heat the joining portions.
    Type: Application
    Filed: August 23, 1999
    Publication date: November 29, 2001
    Inventors: HENRY JOHN PEPIN, MICHAEL WILLIAM STERUD, ANNE VICTORIA ROSSI
  • Publication number: 20010039995
    Abstract: To prevent formation of a welding bead in the area of the weld on at least one wall when hollow section strips (1) are being joined by butt welding, on at least one wall of the ends of the hollow section strips (1) to be joined to one another by welding, edges (7) are produced which are set back relative to the end faces (5) of the hollow section strips (1) and the ends of the hollow section strips (1) are moved so close to one another in the execution of the welding process that the edges (7) touch and the welding process ends as soon as the edges (7) touch one another.
    Type: Application
    Filed: May 8, 2001
    Publication date: November 15, 2001
    Inventor: Peter Lisec
  • Patent number: 6248196
    Abstract: A microcannula suitable for cannulation of very small blood vessels having a sharp pointed trochar tightly but removable placed in the lumen of the microcannula. The trochar is held in place by contact friction from an area of reduced inside diameter distal to the tip end, formed by welding the end distal of the microcannula to a tube having a slightly larger diameter. A process for making a microcannula is also provided.
    Type: Grant
    Filed: November 12, 1997
    Date of Patent: June 19, 2001
    Assignee: BioTime, Inc.
    Inventors: Harold D. Waitz, Hal Sternberg, Paul E. Segall, Bruce Cohen
  • Patent number: 6217233
    Abstract: A quick restoration splice block comprises a rectangular block of transparent material including an opening for accepting the prepared endfaces of the pair of fibers to be spliced. A brightly colored indicator stripe is formed on the underside of the fiber opening. As the fiber endfaces are moved toward each other, the indicator stripe will be covered. When the stripe is no longer visible, butt-to-butt coupled of the fibers is achieved.
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: April 17, 2001
    Assignee: AT&T Corporation
    Inventors: Hossein Eslambolchi, John Sinclair Huffman, Ronald L. Sims
  • Patent number: 6214143
    Abstract: A tubular fibrous blanket is formed using a rotary fiberizer which produces a tow of substantially continuous thermoplastic fibers and a suction chamber with an annular, vertically extending, collection surface spaced from and surrounding the rotary fiberizer. The fibrous tow is collected on the annular, vertical collection surface or on a foraminous backing sheet passing over the collection surface in a spiral of very low pitch with succeeding portions of the tow at least partially overlapping and preferably, substantially completely overlapping preceding portions of the tow to form the tubular blanket. The tubular fibrous blanket and the backing sheet, when used, can then be slit longitudinally and unfolded to form a flat blanket having continuous fibers extending substantially perpendicular to the longitudinal axis of the blanket.
    Type: Grant
    Filed: May 13, 1994
    Date of Patent: April 10, 2001
    Assignee: Johns Mansville International, Inc.
    Inventors: John Stuart Robertson, Michael Dean Peterson
  • Patent number: 6197015
    Abstract: A catheter having at least two lengths of tubular material axially joined together by a scarf joint with no perceptible change in outer diameter at the joint; the scarf joint including a substantially axially oriented seam component between the two lengths of tubular material with the seam visible along the peripheral surfaces of the axially joined sections and extending at an acute angle to the longitudinal axis of the catheter; and wherein one of the at least two lengths of tubular material includes an inner tubular reinforcement layer, wherein the reinforcement layer forms part of the scarf joint.
    Type: Grant
    Filed: December 9, 1998
    Date of Patent: March 6, 2001
    Assignee: Medi-Dyne Inc.
    Inventor: James C. Wilson
  • Patent number: 6197401
    Abstract: Disclosed is concrete comprising: a plurality of fiber rings for reinforcing a tensile strength of the concrete, each of the plurality of fiber rings forming a closed loop. The plurality of fiber rings included in concrete according to the present invention can remarkably increase a tensile strength of the concrete, are prevented from being entangled and poorly distributed, and do not hurt the human body and prevent an object from being damaged and thereby being broken.
    Type: Grant
    Filed: April 19, 1999
    Date of Patent: March 6, 2001
    Inventor: Jeong Ho Ahn
  • Patent number: 6183584
    Abstract: A splicing coupling and a method using a splicing coupling is provided for splicing a pair of drip irrigation hoses. The splicing coupling has an inner and outer member. Each member has a heat activatable bondable surface opposite a non-bondable surface. Each member is circuitous. The inner member is formed with the bondable surface on the outside and the non-bondable surface on the inside, while the outer member is formed with the bondable surface on the inside and the non-bondable surface on the outside. Typically, the inner member is preferably bonded to the outer member along a bond line midway between the members and perpendicular to the longitudinal axis of the members. To form a splice, an end of a first hose is slid over the inner member but under the outer member until it abuts against the bond line. An end of a second hose to be spliced is slid over the other end of the inner member and underneath the outer member until it abuts the bond line.
    Type: Grant
    Filed: April 1, 1999
    Date of Patent: February 6, 2001
    Assignee: T-Systems International, Inc.
    Inventor: Scott K. Avenell
  • Patent number: 6156144
    Abstract: A process for fusion jointing or joining of pipe sections includes the steps of covering planed ends of the pipe pieces with an electric socket. The electric socket has a heating device disposed therein, and a heating output of the socket is such that an effective butt-jointing occurs between the pipe pieces. A bellows can be placed within the pipes to prevent collapse thereof, and to improve an inner bead quality of the pipe parts.
    Type: Grant
    Filed: April 21, 1999
    Date of Patent: December 5, 2000
    Assignee: Alois Gruber Ges.m.b.H.
    Inventor: Albert Lueghamer
  • Patent number: 6134787
    Abstract: A method of producing a rail-bound rail vehicle for passenger transport, includes providing at least one trough-like superstructure with a floor and adjoining side walls formed in a framework construction from side-wall posts, lower longitudinal members and upper longitudinal flanges or chords. The upper longitudinal flanges are supported against one another by connecting members. The side walls have windows and access areas with doors. The side-wall posts are disposed in a zigzag manner and are rigidly connected to the lower longitudinal members and the upper longitudinal flanges, and serve as supporting elements for the windows and side paneling elements fastened thereto. The superstructure is assembled from shaped pieces and bar parts which have been cut to length.
    Type: Grant
    Filed: May 24, 1999
    Date of Patent: October 24, 2000
    Assignee: DaimlerChrysler AG
    Inventors: Helmut Elsner, Ferdinand Tegeler, Hans-Dieter Eisbrecher
  • Patent number: 6125540
    Abstract: Core-type structures are formed in a continuous process by assembling cut tubes or sheets of a thermoplastic material that are aligned, cut into separate continuous structures which are then subsequently cut into separate structures suitable for use as a core member.
    Type: Grant
    Filed: February 17, 1998
    Date of Patent: October 3, 2000
    Assignee: Newcourt, Inc.
    Inventors: Calvin L. Court, Tawne L. Castorina, Calvin L. Court, Melvin T. Court
  • Patent number: 6103037
    Abstract: A method of forming a catheter comprising the steps of a) loading an inner layer on a mandrel; b) loading a reinforcing braid layer over the inner layer; c) adding a terminal tip to one end of the inner layer, the terminal tip applied directly over the inner layer with no portion of the reinforcing braid therebetween; d) loading a plurality of axial jacket sections over the braid layer, one of the axial jacket sections engaging an adjacent one of the plurality of axial jacket sections along a joint including substantially axially oriented seams; e) applying a shrink tube over the plurality of axial jacket sections and heating the shrink tube to cause the plurality of axial jacket sections to bond with each other, the braid layer and the inner layer; f) removing the shrink tube; and g) removing the mandrel.
    Type: Grant
    Filed: October 16, 1997
    Date of Patent: August 15, 2000
    Assignee: Medi-Dyne Inc.
    Inventor: James C. Wilson
  • Patent number: 6090233
    Abstract: An irrigation hose splice and method of making the same that permits used irrigation hose to be reinstalled and retrieved in the same manner as new irrigation hose. The method of splicing includes providing two segments of unjoined irrigation hose. Inserting a heat shield into a first segment to prevent its inner circumferential surface from fusing together when the first hose segment is later fused with a second hose segment. Inserting the first hose segment into the second hose segment, creating an area where the two segments overlap. Appyling heat and compression simultaneously at the overlapping area to fuse together the first and second hose segments, creating an irrigation hose splice which is composed of material from the first hose segment and the second hose segment that have been fused together.
    Type: Grant
    Filed: May 1, 1998
    Date of Patent: July 18, 2000
    Assignee: Drip Tape Manufacturers & Engineers, Inc.
    Inventor: Daniel W. C. Delmer
  • Patent number: 6074511
    Abstract: A splicing method for plastic optical fibers, wherein solvent splicing is carried out by means of an organic solvent 4 capable of dissolving or swelling the plastic material of plastic optical fibers 1 and 2.
    Type: Grant
    Filed: January 11, 1999
    Date of Patent: June 13, 2000
    Assignee: Asahi Glass Company Ltd.
    Inventors: Yoshinobu Takano, Norihide Sugiyama
  • Patent number: 6026882
    Abstract: A tube connecting apparatus for grasping and heating to melt and alternately connect the cut ends of a plurality of tubes is disclosed. A first tube holder and a second tube holder for grasping the tubes are provided with a pair of clamps having holding portions for holding a plurality of tubes; each of the pair of clamps being moved into contact with, and away from, each other. One or both of the holding portions of the first tube holder and the second tube holder are formed of semi-circular separatable members and having a symmetry of rotation in relation to the center of the rotating axis, and have a grasping means for moving into contact with, and away from, the pair of clamps and have a rotating means for rotating the semi-circular holding portions of one or both of the first tube holder and the second tube holder.
    Type: Grant
    Filed: December 10, 1997
    Date of Patent: February 22, 2000
    Assignees: CKD Corporation, Terumo Kabushiki Kaisha
    Inventors: Yoshiyuki Yamada, Hiroaki Sano, Yoshiro Suzuki
  • Patent number: 5975587
    Abstract: A repair fitting is provided for sealably connecting ends of a pipeline, when a damaged section of the pipeline has been removed. In a preferred embodiment, the pipeline ends are connected using the repair fitting with two stab fittings. The repair fitting includes a first and second piston and a first and second cylinder, wherein the first piston is slidable in the first cylinder and the second piston is slidable in the second cylinder. In an alternate embodiment, two fusion joints are used with the repair fitting to sealably connect the ends of the pipeline. A method is provided for making a repair fitting and a method is also provided for repairing a damaged section of a pipeline.
    Type: Grant
    Filed: May 29, 1998
    Date of Patent: November 2, 1999
    Assignee: Continental Industries, Inc.
    Inventors: Timothy F. Wood, David E. Bentley, Donald W. Wartluft
  • Patent number: 5961498
    Abstract: A catheter with a first component, a second component, and a glue line disposed between the components which is filled with an adhesive layer joining the components. The adhesive layer is formed in two plies, whereby a first adhesive ply is bonded to the first component and a second adhesive ply is bonded to the first adhesive ply and to the second component. Thus, even catheter components which could not be bonded to each other with the use of a single-ply adhesive layer or could only be bonded with inadequate stability can be firmly bonded to each other. Moreover, one of the adhesive plies may be applied in the unassembled state of the components.
    Type: Grant
    Filed: December 17, 1997
    Date of Patent: October 5, 1999
    Assignee: Schneider (Europe) GmbH
    Inventor: Hans Wiesendanger
  • Patent number: 5961154
    Abstract: A fume exhaust duct joint, a clamping collar for clamping two cylindrical dual-laminate duct sections joined by an internal slip collar, and a method for assembling the joint. A first embodiment of the clamping collar has two clamp portions each including a metal outer skin spot-welded to a metal inner skin. The inner skins have bifurcated protrusions whose bifurcations penetrate the duct section outer surfaces when the collar is tightened, and, optionally, two circumferential beads of fire retardant caulking. The inner skins and slip collar are bonded to duct section surfaces using a putty-like sealant including a settable admixture of curing agent and novolac epoxy resin. A second embodiment of the clamping collar, preferred for duct sections 3-inches in diameter or smaller, has a single circumferential clamp portion.
    Type: Grant
    Filed: September 16, 1998
    Date of Patent: October 5, 1999
    Inventors: Douglas Williams, Jeff Shea
  • Patent number: 5919335
    Abstract: A hand held tool for facing and joining the ends of opposed lengths of plastic pipe in axial alignment has a generally horizontal body and a generally vertical fixed handle extending from the body. A cylindrical shaft is supported by the body perpendicular to the fixed handle. A fixed pipe clamp is supported by the body by which a first length of plastic pipe can be removably secured. A moveable pipe clamp is slidably supported by the shaft by which a second length of plastic pipe may be secured. A moveable handle is pivotally supported to the body, the handle having a first portion in engagement with the second pipe clamp and a second portion extending in a plane of the fixed handle so that the second clamp can be manually moved towards the fixed clamp. A facer is removably positionable on the hand held tool between the fixed and moveable clamps, the facer having a cutter body having a cylindrical opening therethrough. A cutter holder is rotatably supported in the cylindrical opening.
    Type: Grant
    Filed: July 28, 1997
    Date of Patent: July 6, 1999
    Assignee: TDW Delaware, Inc.
    Inventor: Gene R. Ralls
  • Patent number: 5916644
    Abstract: A method for adhering tubular casing material containing at least 25 weight percent water, during the process of its manufacture, which comprises applying a plurality of beads of a cyanoacrylate adhesive having a viscosity of from 250 to 1000 cps, to a surface of the casing or of a separate film material, and squeezing the casing surface and the film material together to form a bond. The invention also includes bonds and splices made in accordance with the method of the invention.
    Type: Grant
    Filed: August 20, 1996
    Date of Patent: June 29, 1999
    Assignee: Teepak Investments, Inc.
    Inventors: William Harold Stanton, Norman Gene Hensley, Ralph Guenter Jerutka
  • Patent number: 5895009
    Abstract: A method of joining a plurality of coils of strip material into a continuous strip and stacking the coils in a multi-coil arrangement is provided. A first coil is conveyed from a carry-in table by a transfer means to an exit side turn table and is designated as a forward coil. A first strip of material is pulled from the forward coil and supplied to a welding machine through an auxiliary guide roll and an exit side guide roll. A second coil is conveyed to an entry side turn table by the transfer means and designated as the rear coil. A second strip of material is pulled from the rear coil and supplied to the welding machine through an entry side guide roll. The first and second strips of material are welded together into a continuous strip of material. The rear coil is then moved to a stand-by position and sag is removed from the continuous strip of material by synchronously rotating the entry side guide roll, the exit side guide roll, the auxiliary guide roll and the exit side turn table.
    Type: Grant
    Filed: March 15, 1996
    Date of Patent: April 20, 1999
    Assignee: Nippon Mining and Metals Co., Ltd.
    Inventors: Masashi Sato, Shinji Hasumi, Keiichi Muraoka, Sinji Nishino
  • Patent number: 5882536
    Abstract: A method of removing a silver cladding from high temperature superconducting material clad in silver (HTS) is disclosed. The silver clad HTS is contacted with an aqueous solution of HNO.sub.3 followed by an aqueous solution of NH.sub.4 OH and H.sub.2 O.sub.2 for a time sufficient to remove the silver cladding from the superconducting material without adversely affecting the superconducting properties of the superconducting material. A portion of the silver cladding may be masked with a material chemically impervious to HNO.sub.3 and to a combination of NH.sub.4 OH and H.sub.2 O.sub.2 to preserve the Ag coating. A silver clad superconductor is disclosed, made in accordance with the method discussed.
    Type: Grant
    Filed: October 12, 1995
    Date of Patent: March 16, 1999
    Assignee: The University of Chicago
    Inventors: Uthamalingam Balachandran, Anand N. Iyer, Jiann Yuan Huang
  • Patent number: 5871612
    Abstract: A wafer for use in the selective connecting and disconnecting of plastic tubes incorporates a fuse in an aperture. The fuse is made of a laminate having light transmission characteristics which change after the wafer and its laminate have been heated. The wafer would be used in a device for connecting/disconnecting plastic tubes wherein the device includes a sensor which would deactivate the device if the sensor detects the change in light transmission characteristics thereby indicating that the wafer had been previously used.
    Type: Grant
    Filed: July 10, 1997
    Date of Patent: February 16, 1999
    Assignee: Denco, Inc.
    Inventor: Dudley W.C. Spencer
  • Patent number: 5855731
    Abstract: A sterile containment welding device for plastic tubes includes a pair of alignable tube holders each of which includes a base having a tube receiving channel and a clamping jaw pivotally mounted to the base. The outer end of the tube receiving channel is outwardly flared preferably at an angle of about 14.degree..
    Type: Grant
    Filed: September 17, 1997
    Date of Patent: January 5, 1999
    Assignee: Denco, Inc.
    Inventor: Dudley W. C. Spencer
  • Patent number: 5837083
    Abstract: A method of forming a hollow elongated or tubular body consisting of the steps of winding one or more strips of material in self-overlapping fashion to produce a multi-layer tubular structure, the or each strip prior to winding being pre-formed to provide a transverse cross-section having at least one step which, in each convolution of the strip accommodates the overlapping portion of the next convolution.
    Type: Grant
    Filed: August 16, 1996
    Date of Patent: November 17, 1998
    Inventor: John Peter Booth
  • Patent number: 5830312
    Abstract: An apparatus for attaching abutting ends of first and second coaxial pipe sections together includes a support frame, at least two spaced-part fixed pipe clamping jaws having respective upper and lower jaw halves carried by the support frame for positioning the first pipe section in a fixed position, at least two movable pipe clamping jaws having respective upper and lower jaw halves carried by the support frame for translating movement of the second pipe section relative to the fixed clamping jaws and into aligned abutment with the first pipe section, and a joining device for joining the first and second abutted pipe sections together without interference between the clamping jaws and the pipe sections. The clamping jaw pivots respective fixed and movable upper and lower jaw halves into and out of clamping engagement with the first and second coaxial pipe sections.
    Type: Grant
    Filed: February 1, 1996
    Date of Patent: November 3, 1998
    Assignee: Hughes Supply, Inc.
    Inventors: James Callen Weimer, Jack Lee Workman, Gary Wayne Gunno
  • Patent number: 5814181
    Abstract: A device for butt welding pipes of thermoplastic plastic includes two pipe clamping units, aligned flush relative to each other, for clamping pipe ends therein. A first of the two units can be moved in the alignment direction by an electric motor and via mechanical drive elements. The reaction force corresponding to the infeed force is supported on the bottom via a support structure and a pipe end held in the second of the two units which is fixed in relation to the bottom. The mobile pipe end, held in the first pipe clamping unit, can be pressed against the fixed pipe end which is clamped in the second pipe clamping unit with a force measurable by a measurement device.
    Type: Grant
    Filed: November 16, 1995
    Date of Patent: September 29, 1998
    Assignee: Ulrike Richter
    Inventors: Ulrike Richter, Wilfried Hufnagel
  • Patent number: RE37097
    Abstract: An embodiment of the present invention is a method for splicing together a pair of drop irrigation hoses using splicing means internal to the pair of hoses. The pair of hoses are joined in axial alignment to form a junction with the splicing means interposed internal to each hose. A splicing means is bonded to an inside surface of each hose to fashion the pair of hoses and splicing means into a unitary structure using means for fixing the splicing means to another surface. A seal is formed using means for sealing circumferentially at the junction to create a water-tight seal.
    Type: Grant
    Filed: October 25, 1999
    Date of Patent: March 20, 2001
    Assignee: T-Systems, International
    Inventors: Harold Daigle, Scott Avenell