Patents Represented by Attorney David C. Purdue
  • Patent number: 6715844
    Abstract: An improved tensioned spoke bicycle wheel. The wheel comprises a hub, a rim, spokes and spoke nipples. A spoke that is connected to the left side of the hub is paired, at the rim, with a spoke that is connected to the right side of the hub. For each pair of spokes, there is provided a spoke plate that is positioned between the rim floor and the nipples. Each of the spokes in a pair extends through adjacent spoke bores in the rim, through spoke bores in the spoke plate and into the spoke nipples. The spoke plates distribute the forces associated with the tensioned spokes over a substantial portion of the rim floor. The spoke plate may have a flat surface where it supports the nipples or a socket shaped surface. In the latter case, the nipples have a ball shaped lower end that seat in the socket.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: April 6, 2004
    Inventor: Rolf Dietrich
  • Patent number: 6694530
    Abstract: A goggle strap alignment and fastening guide is disclosed. The guide is secured to the sides of a helmet that might be used in an extreme sport, such as personal watercraft racing, snowboarding, and the like. The goggle strap guide comprises a base having a first side, which includes means, preferably an adhesive, for securing the guide to the outside of a helmet. The base has a second side, which has two legs with L-shaped cross-sections extending from opposed edges of the base towards each other to define therewith a partially open strap channel. A strap is received within the channel and the legs restrict up and down movement of the strap while permitting longitudinal movement of the strap within the channel. Preferably, the first side of the base is concave.
    Type: Grant
    Filed: June 4, 2002
    Date of Patent: February 24, 2004
    Inventor: Brad Maloney
  • Patent number: 6680144
    Abstract: A method for producing a battery separator is disclosed. The method comprises applying a coating of an ethylenically unsaturated monomer to the fibers of a non-woven sheet and polymerizing the monomer in situ on the fiber surfaces. The non-woven sheet is from 50 to 3000 microns thick, and is composed of polyolefin fibers having an average fiber diameter from 0.5 to 5 microns and a surface area from 0.2 to 30 square meters per gram.
    Type: Grant
    Filed: May 6, 2002
    Date of Patent: January 20, 2004
    Assignee: KVG Technologies, Inc.
    Inventor: Wai M. Choi
  • Patent number: 6660336
    Abstract: An improved method for producing impregnated reinforcing threads is disclosed. The method involves impregnating glass, carbon or aramid fibers with a twist ≦120 turns/m with a polymer dip, drawing the impregnated threads through a nozzle, drying the threads superficially in a first heating zone where they are kept moist in the core, and then providing them with a twist up to 400 turns/m in a second heating zone in which they are heated to fix this twist. The fibers are intimately impregnated with polymer, so that the impregnated threads have high fatigue strength, and a compact, constant cross section throughout their length. The impregnated threads are particularly suitable for reinforcing driving belts and high pressure hoses; they can be made into wovens and scrims which, in turn, can be used for reinforcing tires, conveyor belts and the like.
    Type: Grant
    Filed: January 28, 2002
    Date of Patent: December 9, 2003
    Assignee: P-D Tec Fil GmbH Technische Filamente
    Inventors: Johannes Frenken, Horst-Dieter Rector
  • Patent number: 6575852
    Abstract: An apparatus for centering a ball is disclosed. The apparatus comprises a base, an upright member supported on the base for pivotal movement with respect to the base, and a pivot arm pivotally supported relative to the upright member for pivotal movement between a first, cocked position and a second, released position. A ball cradle is supported on the pivot arm for releasably supporting a ball to be centered. A bias member urges the pivot arm towards the second, released position and a pivot arm lock is operable, in a first condition, to hold the pivot arm in the first position. The pivot arm lock, in a second condition, releases the pivot arm so that the bias member moves the pivot arm to the released position, thereby centering the ball. The apparatus preferably includes sound actuated means for changing the condition of the pivot arm lock from the first condition to the second condition, to center the ball.
    Type: Grant
    Filed: November 8, 2001
    Date of Patent: June 10, 2003
    Inventor: Randy Orner
  • Patent number: 6523443
    Abstract: The present invention is a process by which optical surfaces of lenses, particularly plastic progressive lenses and molding shells for producing lenses are manufactured directly in a single step according to didicidual data. A blank from which an optical surface or a molding shell is to be manufactured is held at the workpiece carrier of a spindle axis (Z axis) of a shaping machine and is directly turned into its final form by a turning tool which can move relative to the blank (in the X axis), i.e., transversely to the direction of displacement of the tool. During each rotation of the spindle, the turning tool is incrementally adjusted towards or away from the blank depending on the characteristic surface data, which may be predetermined or calculated on-line.
    Type: Grant
    Filed: December 30, 1998
    Date of Patent: February 25, 2003
    Assignees: Carl-Zeiss-Stiftung, Heidenheim/Brenz, Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e.V.
    Inventors: Albrecht Hof, Klaus Mehlkopp
  • Patent number: 6517079
    Abstract: An aerodynamic seal for a continuous heat treatment furnace which contains a protective atmosphere, and through which a metal strip moves in a given direction is disclosed. The seal is adjacent a passage through which the strip moves through a wall of the furnace, and comprises two slit nozzles above the strip and two slit nozzles below the strip, and inlets for causing a jet of gas to flow through each of the slit nozzles. The slit nozzles are so positioned that gas flowing normal to the strip through the two nozzles above the strip will strike the strip in two lines which are separated from one another in the given direction, and gas flowing normal to the strip through the two nozzles below the strip will strike the strip in two lines which are separated from one another in the given direction.
    Type: Grant
    Filed: June 12, 2000
    Date of Patent: February 11, 2003
    Inventor: Winfried Sommereisen
  • Patent number: 6511722
    Abstract: The invention proposes a spacer (1) for arranging between at least partially equidistant surfaces of components which are to be arranged temporarily adjacent to one another, in particular between plate-like or panel-like components, said spacer comprising solely an elastically deformable adhering element (3; 11; 14) and a supporting element (2) with two end surfaces, it being the case that the supporting element (2) is formed in a dimensionally stable manner from plastic and has a depression (5) on one side, it being the case that the adhering element (3; 11; 14) is secured in the depression (5) of the supporting element (2), projects beyond the depression (5) once relieved of stressing and, when subjected to compressive loading, can be forced back into the depression (5), and it being the case that the adhering element (3; 11; 14) and the depression (5) are coordinated with one another such that the adhering element (3; 11; 14) still maintains its elasticity in the position in which it has been forced back f
    Type: Grant
    Filed: June 29, 2000
    Date of Patent: January 28, 2003
    Inventor: Willi Mennicken
  • Patent number: 6497042
    Abstract: A method for building a bicycle wheel and the wheel. Inserting a threaded end (106) of a spoke (100) through a hole (126) in the rim (102), through a spacer (118), and engaging the threaded end (106) with an internally threaded connector (104). The rim (102) and the connector (104) cooperate to maintain the axis of the threaded end (106) of each spoke (100) in a given spoke hole (126) so that it is skewed relative to the axis of a first portion of each spoke (100) extending from the hub to the rim (102). While the connector (104) is turned to tension the spoke (100), the spoke (100) permanently bends at a point (128) remote from the spoke's thread end (106).
    Type: Grant
    Filed: January 29, 2001
    Date of Patent: December 24, 2002
    Inventor: Rolf Dietrich
  • Patent number: 6495286
    Abstract: A glass fiber separator material is disclosed. The separator is composed of a mass of intermeshed glass fibers substantially all of which have a fiber diameter not greater than about 20 &mgr;m, and at least 5 percent w/w of which have a fiber diameter less than 1 &mgr;m, and, distributed through the glass fibers, and from 0.2 percent w/w to 20 percent w/w of cellulose fibrils. The fibrils are from a slurry having a Canadian freeness sufficiently low that the separator material has a tensile strength greater than an otherwise identical separator where glass fibers having an average diameter greater than 1 &mgr;m replace the cellulose fibrils.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: December 17, 2002
    Assignee: Hollingsworth & Vose Company
    Inventors: George C. Zguris, Frank C. Harmon, Jr.
  • Patent number: 6478829
    Abstract: A method for producing a battery separator from a slurry of fibers which are resistant to the chemicals which are found in a battery, and a thermoplastic binder for the fibers. The method comprises the steps of casting the slurry onto a screen, draining the liquid of the slurry from fibers and binder which collect on the screen, and drying the fibers and binder without softening the binder. Subsequently, usually after the it has been rolled, packaged and shipped, the separator is cut to size and heated to soften the binder. In a preferred embodiment, the fibers are glass fibers having an average diameter less than 3 &mgr;m. In another preferred embodiment, the fibers are organic.
    Type: Grant
    Filed: February 8, 2000
    Date of Patent: November 12, 2002
    Assignee: KVG Technologies, Inc.
    Inventor: George C. Zguris
  • Patent number: 6444194
    Abstract: The invention disclosed herein involves a phototherapeutic pyrrolic core complexed with a non-radioactive Indium atom. Complexation of Indium by the pyrrolic core forms a metalopyrrolic compound which influences enables these compounds to localize at target sites a phototherapy. Such functionally aids in both detection and phototherapy of disease sites, or provides functionality that binds to site specific receptors of a target area such that the therapy is improved.
    Type: Grant
    Filed: May 26, 1999
    Date of Patent: September 3, 2002
    Assignee: Miravant Pharmaceuticals, Inc.
    Inventors: Byron C. Robinson, Avinash S. Phadke
  • Patent number: 6431805
    Abstract: A device for engaging a load having apertures in a lower portion of the load, adjacent to its base. The device comprises a frame having first and second ends, a load facing surface, first and second jaws supported on said frame and a jaw positioner operable to secure said jaws in a position where they lock the frame to the load with the load facing surface in contact therewith. The frame is connectable to a at least one frame lifter comprising a wheel supported for reciprocating movement between a first position in which, when the lifter is connected to the frame and the frame is connected to the load, the wheel is above a surface under the load, and a second position in which the wheel engages the surface and supports the frame and the load above the surface.
    Type: Grant
    Filed: March 5, 2001
    Date of Patent: August 13, 2002
    Inventor: Francis E. Lanciaux, Jr.
  • Patent number: 6428113
    Abstract: A low spoke count high spoke tension bicycle wheel having paired spokes that cross between the hub and the rim is disclosed. The wheel has a center plane and comprises a bicycle wheel hub having first and second hub flanges on first and second sides, respectively, of the wheel center plane, a rim, and nine or fewer pairs of first and second spokes each having a first end which is connected to one of said hub flanges or to said rim and a second end which is threadably received in a nipple which is seated at a spoke bore in said rim or in said hub. The wheel has excellent lateral stiffness which gives a bike on which the wheel is mounted excellent resistance to speed wobble or shimmy, in the case of a front wheel or to axle deflection, in the case of a rear wheel, and the spokes in the pair cross the wheel center plane between the hub and the rim, for added lateral strength. The first and second spokes of each pair are not connected to each other and have a combined static tension in excess of 200 pounds.
    Type: Grant
    Filed: August 8, 2001
    Date of Patent: August 6, 2002
    Inventor: Rolf Dietrich
  • Patent number: 6408774
    Abstract: A method of producing tufted products is disclosed. The method includes the steps of installing a second set of reed fingers (8) relative to a tufting machine, feeding a pair of backing sheets (7,9) to the tufting machine with the second set of reed fingers (8) positioned between the backing sheets (7,9); operating the tufting machine in a normal manner to form a face-to-face structure through the backing sheets; and cutting or dividing the face-to-face structure to form two separate tufted products. No additional or extra backing stitch is included in the face-to-face structure formed through the backing sheets. Also disclosed is the installation of an optional lower presser foot (5) which, if present, temporarily holds the yarn during needle retraction.
    Type: Grant
    Filed: January 1, 2000
    Date of Patent: June 25, 2002
    Assignee: Groz-Beckert KG
    Inventor: Warren J. Meade
  • Patent number: 6405778
    Abstract: A pre-loaded, disposable merchandiser, a machine for producing the merchandiser and methods for producing the merchandiser and for packaging items to be sold for display. The merchandiser comprises a strip, a hanger at one end of the strip for suspending the strip, and a plurality of items to be offered for sale, adhesively connected to the strip in staggered locations on the strip. Apparatus for producing the merchandiser comprises a strip material feeder operable to deliver or feed strip material to a station, a tape arm operable to advance tape, a tape cutter operable to cut off a piece of the tape, and an install pad operable to apply the piece of tape to a portion of the strip and to a portion of an item to be sold or to packaging for the item.
    Type: Grant
    Filed: March 15, 2000
    Date of Patent: June 18, 2002
    Assignee: Rudolph Foods Company, Inc.
    Inventor: James G. Belt
  • Patent number: 6384100
    Abstract: A method for producing an acrylic graft polymer on the surface of a polyolefin article is disclosed. The method comprises the steps of immersing the polyolefin article in a solution of a photoinitiator in a volatile solvent, allowing the volatile solvent in the photoinitiator solution to vaporize, immersing the polyolefin article in a solution of an acrylic monomer, and subjecting the polyolefin article, while in a suitable atmosphere, which can be air or can be inert, to ultraviolet irradiation to cause the acrylic monomer to graft to the polyolefin surface. A method which involves subjecting a polyolefin article to corona discharge, immersing the article, after corona discharge treatment, in a solution of a photoinitiator and an acrylic monomer in a volatile solvent, and subjecting the article to ultra violet irradiation to cause the acrylic monomer to graft to the polyolefin surface is also disclosed. The latter method improves the ammonia trapping capacity of the grafted article.
    Type: Grant
    Filed: October 27, 2000
    Date of Patent: May 7, 2002
    Assignee: Hollingsworth + Vose Company
    Inventor: Wai Ming Choi
  • Patent number: 6346214
    Abstract: A top hat annealing furnace with pivoting features. The annealing furnace has an annealing understructure, an annealing hood, a heating hood and a cooling hood. The annealing understructure and the annealing hood are supported so that they can be tilted between an operating position and a loading position. The heating hood and the cooling hood are provided with doors, which can be closed when the furnace is in use, and opened when it cycle is completed. When the doors of either hood are open and the hood is oriented vertically, the hood can be moved horizontally relative to the annealing hood.
    Type: Grant
    Filed: August 21, 2000
    Date of Patent: February 12, 2002
    Assignee: Otto Junker GmbH
    Inventors: Arne-Nils Knudsen, Siegfried Wilden
  • Patent number: D467017
    Type: Grant
    Filed: May 16, 2001
    Date of Patent: December 10, 2002
    Inventor: Shawn A. LaPoint
  • Patent number: D475040
    Type: Grant
    Filed: July 3, 2002
    Date of Patent: May 27, 2003
    Inventor: Shawn A. LaPoint