Patents Represented by Attorney Varnum Riddering
  • Patent number: 6494470
    Abstract: A front wheel assembly for a scooter. The scooter has a head tube provided at a front end thereof, a stem extending through the head tube, and a handlebar provided on a top of the stem. The front wheel assembly has a seat mounted at a lower end of the stem. A longitudinal bar is pivotally mounted in the seat. A first wheel is provided at a front end of the longitudinal bar. An axle is pivotally provided at a rear end of the longitudinal bar. A pair of second wheels, one of the pair of wheels mounted at each end of the axle. Whereby, when a user turns the handlebar, the scooter can follow a twisting path.
    Type: Grant
    Filed: May 11, 2001
    Date of Patent: December 17, 2002
    Assignee: Tai E. International
    Inventor: Wen-Hwan Chang
  • Patent number: 6471049
    Abstract: A conveyor mat built up from hingedly intercoupled plastic modules, each module consisting of a number of substantially equally spaced apart hinge plates extending throughout the length of the module and provided with hinge loops at both ends thereof, the outer hinge plate and a plate-shaped part located on the outer side of a module of at least a number of modules extending to a position below the bottom face of the mat formed by the successive modules or being provided with a recess in the longitudinal direction of the module, the arrangement being such that the thus formed downward extension and/or the recesses form a lateral guide for the conveyor mat and can cooperate with a tubular or U-shaped guide section respectively.
    Type: Grant
    Filed: June 4, 2001
    Date of Patent: October 29, 2002
    Assignee: MCC Nederland B.V.
    Inventors: Franciscus Josephus M. van Esch, George Johannes van Zijderveld
  • Patent number: 6448924
    Abstract: Blade tracker apparatus for tracking rotating helicopter blades includes an antenna which transmits a signal beam in the direction of the rotating blade. The impedance of the antenna changes as one of the blades enters the transmission beam and the amount by which the impedance changes varies as a function of the physical distance between the antenna and the blade. The varying impedance caused by a blade passing the antenna will amplitude modulate the transmitted signal and provide an indication of the distance of each of the several blades of a rotor as each of the blades passes through the field of the antenna.
    Type: Grant
    Filed: October 12, 1999
    Date of Patent: September 10, 2002
    Assignee: Smiths Aerospace, Inc.
    Inventor: John W. Hafer, Jr.
  • Patent number: 6425435
    Abstract: A modular casting system includes a plurality of casting modules and, is provided with on-board systems such as a lubrication system, cooling system, etc., which operate independently from similar systems on other modules of the system. Each of the casting modules is connected by quick disconnect connections to a centrally disposed source of fluid pressure and electrical power and a control unit for controlling each of the modules independently. Each of the modules is readily removable from the system and replaced with a new module of a different type or with a different mold. Each of the modules is preferably provided with a filter removal unit which is operative to raise of the filter during the cooling operation and facilitates removal of the filter upon completion of the pouring operation. The casting modules are provided with a tilting launder tray which facilitates laundering of the mold after a casting operation.
    Type: Grant
    Filed: July 28, 1999
    Date of Patent: July 30, 2002
    Assignee: Hayes Lemmerz Equipment & Engineering, Inc.
    Inventors: Robert L. Macheske, Kenneth D. McKibben, Daniel D. Minor, Rick A. Van Horn
  • Patent number: 6406314
    Abstract: A power cable assembly (20) is provided with a pivotal male connector (220). The power cable assembly (20) includes a flexible conduit (114) attached to the pivotal male connector (220). The male connector (220) includes a male connector module (240) for housing male connector terminals (122A) connected to electrical wires (142) and supporting flanges (125). The male connector module (240) can pivot through a desired angle with respect to the flexible conduit (114). This pivoting arrangement is advantageous for fitting around tight corners in wall panel raceways.
    Type: Grant
    Filed: February 22, 2000
    Date of Patent: June 18, 2002
    Inventor: Norman R. Byrne
  • Patent number: 6401571
    Abstract: A tool, specifically adapted for inserting a lamp module in a lamp module receptacle and for removal of a lamp module from a receptacle, is provided with a longitudinally extending handle having opposite ends and a lamp removal head at one end of the handle for engaging the head of a lamp tether and disconnecting the tether head from a tether rail, and a lamp insertion head at an opposite end of the handle to facilitate engagement of a lamp tether head with a tether rail in a lamp receptacle.
    Type: Grant
    Filed: May 25, 2001
    Date of Patent: June 11, 2002
    Assignee: Smiths Industries Aerospace & Defense Systems, Inc.
    Inventor: Robert J. Schuman
  • Patent number: 6397873
    Abstract: Method and apparatus for temporarily increasing the transport capacity of the water supply system in case of a calamity, in which despite the occurrence of a calamity an amount of drinking water is to be transported to the service area of a pumping station or transport line which has failed. In case of a calamity, at least one mobile apparatus for raising the pressure in the transport line is temporarily connected to the residual supply system to take over the failing transport function. The apparatus has a transportable housing with a pump coupled to a motor, comprising means for setting the pump on two sides into communication with a water transport line via connecting lines, and has a capacity sufficient for deployment in a municipal, regional or still larger water supply system.
    Type: Grant
    Filed: February 9, 2000
    Date of Patent: June 4, 2002
    Assignee: N.V. Waterleidingsbedri JF Midden Nederland
    Inventors: Robert Henry Rozeboom, Petrus Jacobus Ruiter
  • Patent number: 6379182
    Abstract: An energy center (100) is disclosed which is mountable to furniture assemblies comprising elements such as planar work surfaces and vertical side surfaces. In one embodiment, the energy center (100) is mountable to a work surface (102) having a planar surface (104). A slot (106) extends through the work surface (102). The energy center (100) includes an upper housing (120) having an interior spacial area (124) for housing wires and portions of electrical receptacles (112) and data ports (114). The receptacles (112) and data ports (114) are utilized to provide energy through power cords (110) and data lines (108). The upper housing (120) is interchangeably mountable to a first base support (130). The base support (130) is securable to the planar surface (140). In a second embodiment, an energy center (300) is adapted to be mounted to an edge or end of the work surface (102).
    Type: Grant
    Filed: November 27, 1998
    Date of Patent: April 30, 2002
    Inventor: Norman R. Byrne
  • Patent number: 6343947
    Abstract: An electrical junction block is provided with a latching device adapted to engage a retaining tab in a support structure. The latching device includes a first cantilever beam extending from one edge of an upper surface of the junction block and having a free end extending beyond the centerline of the junction block and a tab channel in alignment with a centerline of the junction block. A second retention beam extends from a location adjacent an opposite edge of the upper surface of the junction block and overlaps a portion of the free end of the first cantilever beam. When a junction block provided with a latch of the present invention is inserted in a frame with a retaining tab, the junction block may be inserted from either of two opposite directions. When the junction block is inserted such that the retaining tab first engages the latch adjacent the one edge, the first cantilever beam is depressed against the tab until the tab channel is reached.
    Type: Grant
    Filed: January 11, 2000
    Date of Patent: February 5, 2002
    Inventor: Norman R. Byrne
  • Patent number: 6325430
    Abstract: A laminated, truck bumper (10) having an exterior surface (14) with a prescribed mechanical finish (15) such as a highly reflective (mirror) finish that is uniform in appearance and does not have any fasteners or undesirable apertures extending therethrough. The laminated bumper includes an outer sheet (11) and a reinforcing sheet (16) that is configured with a generally U-shaped channel (17) and disposed in the channel recess (13) of the similarly configured channel (12) of the outer sheet. The reinforcing sheet is welded to the outer sheet and has indentations (19) therein each with an aperture (20) for extending a fastener (21) therethrough. The head (22) of each fastener is fixedly secured entirely in the reinforcing sheet indentation so as not to disrupt or interfere with the uniform appearance of the highly reflective finish of the outer sheet.
    Type: Grant
    Filed: August 19, 1996
    Date of Patent: December 4, 2001
    Inventor: Joseph Arthur King
  • Patent number: 6296110
    Abstract: A conveying system, comprising an endless conveyor mat extending between two divert wheels, for conveying products between the divert wheels in a conveying direction. The conveying system further comprises a slide-over device for transferring, adjacent a divert wheel from or towards the conveying face, products conveyed by the conveyor mat towards or from said divert wheel. The slide-over device comprises a number of fingers extending into the conveying face. The conveyor mat comprises a substantially flat conveying face having at least one substantially straight slot, extending in conveying direction. The fingers each cooperate with a slot. Each finger is connected to the slide-over device so as to be detachable substantially in vertical direction.
    Type: Grant
    Filed: January 15, 1999
    Date of Patent: October 2, 2001
    Assignee: MCC Nederland B.V.
    Inventors: George Johannes van Zijderveld, Franciscus Josephus Maria van Esch
  • Patent number: 6290518
    Abstract: A rotatable power and data center with storage area (100) is disclosed which provides access, at a work surface level, to electrical power, communication signals and other types of desired electrical and/or communications input/output. The power and data center (100) includes a stationary housing (106). A pair of coupling connectors (134) are provided which allow the stationary housing (106) to be removably secured from a slot (102) formed within a work surface (104). A carriage (170) is rotatably coupled to the stationary housing (106) and is movable between closed and open positions. A recessed storage area (244) is formed by the housing (106) and carriage (170). Electrical receptacles (180) and communication receptacles (174) are mounted on the carriage (170). A cover (220) is also rotatably coupled to the housing (106). Electrical and communications devices can remain energized through the receptacles (174, 180) when the carriage (170) and cover (220) are in closed positions.
    Type: Grant
    Filed: September 14, 1999
    Date of Patent: September 18, 2001
    Inventor: Norman R. Byrne
  • Patent number: 6275030
    Abstract: Eddy currents are generated in an object constructed of a conductive material by transmitting an electromagnetic signal to the object and detecting electromagnetic signals generated by eddy currents induced in the object, and an electromagnetic signal V(t) is described by a product of two factors F and G(t), wherein F is a function of the geometry and electrical and magnetic properties of the material and G(t) is a function of geometry of the material, the electrical and magnetic properties of the material, the thickness perpendicular to the surface of the material, and time.
    Type: Grant
    Filed: November 9, 1999
    Date of Patent: August 14, 2001
    Assignee: Röntgen Technische Dienst B.V.
    Inventor: V. O. de Haan
  • Patent number: 6254330
    Abstract: A drum charging system (100) is disclosed, for alleviating ergonomic concerns and chemical exposure hazards associated with the manual addition of solid materials from drums into processing equipment. The drum charging system (100) is adapted to be utilized with drum containers (102) having solid materials contained within a material bag (104). The system (100) comprises a ventilation sleeve (110) and a drum manipulator (200). The ventilation sleeve (110) captures dust which may be generated during the addition of solid materials from the drum (102) and material bag (104) into a reaction vessel (106). The drum manipulator (200) is adapted to be portable and facilitates manipulation of drums during charging functions.
    Type: Grant
    Filed: March 2, 1999
    Date of Patent: July 3, 2001
    Assignee: EHS Solutions, L.L.C.
    Inventors: Nathan D. Steffen, Neil R. Weaver
  • Patent number: 6244186
    Abstract: An air gun pellet with a head including two distinct structural features, providing overall improved performance. The first feature is a multiple section rim or cup on the head which enlarges or mushrooms upon impact. The second feature is a central driving point contained within the cup on the head. The combination of these features provides a synergistic effect resulting in a pellet having improved penetration, shock wave and tissue destruction.
    Type: Grant
    Filed: July 26, 1999
    Date of Patent: June 12, 2001
    Inventor: Joseph F. L. John Pichard
  • Patent number: 6227356
    Abstract: A conveyor mat for conveying products in a conveying direction between at least two divert wheels. The conveyor mat comprises a number of rows of side-by-side modules succeeding each other in the conveying direction and extending transversely to the conveying direction. Incorporated into the conveyor mat are a number of guide modules which have their bottom side provided with guide members for cooperation with a guide provided on a conveying track. According to the invention, the guide modules are incorporated into the conveyor mat so as to be substantially equally spaced from one of the lateral edges thereof, such that the guide members together constitute one narrow, slotted guide track extending in conveying direction. In an advantageous manner, the guide modules can be incorporated adjacent a lateral edge of the conveyor mat or in or adjacent the center of the conveyor mat.
    Type: Grant
    Filed: March 15, 1999
    Date of Patent: May 8, 2001
    Assignee: MCC Nederland B.V.
    Inventors: George Johannes Van Zijderveld, Franciscus Josephus Maria Van Esch
  • Patent number: 6209775
    Abstract: A bracket for a machine frame, such as a core molding machine frame, having horizontal and vertical members includes first and second legs adapted for attachment to the machine frame members. The first and second legs are formed from a plate material and extend perpendicular to each other. The bracket is welded around its periphery to the machine frame. A free end of at least one of the first and second legs has a tapered portion, and one or more openings may be provided in the bracket. An outer periphery of the tapered portion and an inner periphery of the openings are welded to the machine frame for further extending the total weld length and reducing stress concentration in the weld joints.
    Type: Grant
    Filed: September 15, 1998
    Date of Patent: April 3, 2001
    Assignee: Hayes Lemmerz International, Inc.
    Inventor: Kenneth D. McKibben
  • Patent number: 6196379
    Abstract: A module for a modular conveyor mat is provided with front hinge loops and rear hinge loops and the front hinge loops of one module are adapted to be joined to rear hinge loops of an adjacent module by a hinge pin extending transversely to the conveying direction, a recess in the module accommodates a retaining member having a closing part rotatable between a first position for retaining the hinge pin and a second position for releasing the hinge pin.
    Type: Grant
    Filed: February 16, 1999
    Date of Patent: March 6, 2001
    Assignee: MCC Nederland B.V.
    Inventors: Franciscus Josephus Maria Van Esch, George Johannes Van Zijderveld
  • Patent number: D463775
    Type: Grant
    Filed: June 19, 2001
    Date of Patent: October 1, 2002
    Inventor: Norman R. Byrne
  • Patent number: D467230
    Type: Grant
    Filed: October 22, 2001
    Date of Patent: December 17, 2002
    Inventor: Norman R. Byrne