Patents Examined by Fred A. Silverberg
  • Cart wheel structure
    Patent number: 4749204
    Abstract: A cart wheel structure having a pair of wheels rotatably mounted to opposite ends of an axle rod. The axle rod is mounted to a base portion of a cart by a pair of fabricated brackets having an upstanding swivel post adapted to be received in swivel cavities provided on the cart base portion. The swivel cavities are adapted to receive the swivel post of conventional swivel caster whereby the cart may be provided with caster and non-caster wheels as desired. The cooperation between the axle rod and brackets provides an accurate maintained disposition of the wheels carried on the opposite distal ends of the axle rod.
    Type: Grant
    Filed: May 5, 1987
    Date of Patent: June 7, 1988
    Assignee: Luxor Corporation
    Inventor: Robert T. Raw
  • Drapery traverse rod and support bracket
    Patent number: 4747182
    Abstract: A drapery traverse rod of the type having telescopically adjustable inner and outer rods each having a lengthwise extending trackway and a lengthwise extending dovetail shaped mounting rail at the rear side. A rod engaging bracket has a first pair of outer rod engaging jaws at one end adapted to engage a dovetail shaped mounting rail on the outer rod and a second pair of inner rod engaging jaws at the other end adapted to engage a dovetail shaped mounting rail on the inner rod. A mounting bracket is adapted for attachment at one end to a supporting surface and the rod engaging bracket can be selectively and reversibly mounted in the rod engaging bracket with either the outer rod engaging jaws or the inner rod engaging jaws positioned forwardly of the mounting bracket for engagement with the mounting rail on the respective outer or inner rod.
    Type: Grant
    Filed: December 16, 1986
    Date of Patent: May 31, 1988
    Assignee: Graber Industries, Inc.
    Inventor: Ronald G. Darner
  • Temple biasing eyeglass spring hinge
    Patent number: 4747183
    Abstract: A spring hinge for eyeglasses in which each bow can be swung out against spring force about a fulcrum spaced from the hinge axis so that the bow will resiliently bear on the temples of the wearer. A spring is secured on a plunger rod between a plunger head at one end of the rod and a stop ring, which is slidably mounted on the rod. The plunger is contained in and releasably locked to a receptacle which is provided on the bow. The plunger rod is connected to a bow-side bearing eye. Owing to that arrangement, the bow-side hinge member and the parts connected to it can be assembled and taken apart by access to only one end of the receptacle.
    Type: Grant
    Filed: December 29, 1986
    Date of Patent: May 31, 1988
    Assignee: OBE-Werk Ohnmacht & Baumgartner GmbH & Co. KG
    Inventor: Gunther Drlik
  • Castor incorporating a braking mechanism
    Patent number: 4747180
    Abstract: A castor has a brake rod (20;120;220) extending through a hollow stem (10) on which a body (4) carrying a pair of castor wheels (2) is rotatably mounted. The brake rod is moveable substantially vertically between an inoperative position and a braking position in which its lower end engages the surface on which the wheel (2) rest. Opposition to braking movement can be provided by a return spring (39;222) or by a spring arm (122). Movement of the brake rod can be effected by a cam (140) acting on the spring arm (122) or by a cam (40;240) acting on a lever (35;230) engaging the upper end of the brake rod. The brake rod (10) can be arranged to have an intermediate position in which rotation of the castor body (4) is prevented.
    Type: Grant
    Filed: June 16, 1986
    Date of Patent: May 31, 1988
    Assignee: Colson Castors (U.K.)
    Inventor: Stafford T. Screen
  • Method of preventing sag of panel and apparatus therefor
    Patent number: 4744501
    Abstract: A method and apparatus for preventing a sag of a panel, in which plate to be attached to a skeleton is located on the skeleton supported by a support means, both end parts of the plate are gripped by grasp electrodes of a resistance heating device, current is caused to flow through the plate by the grasp electrodes so as to preheat the plate to a predetermined temperature and to thermally expand it, the plate is welded to the skeleton by a welding machine, and a residual tensile stress is developed in the plate by the thermal shrinkage deformation attendant upon cooling of the plate after the welding. In the case where the plate has a cut-away part, electric conduction members for short-circuiting the cut-away part are interposed in this part so as to form electric conduction paths for the preheating of the plate.
    Type: Grant
    Filed: November 13, 1986
    Date of Patent: May 17, 1988
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Akira Sakaguchi, Tsuneo Kinoshita
  • Door closer transmission including an eccentric pinion
    Patent number: 4744125
    Abstract: A door closer is described in which transmission characteristics which change in dependence on the closing angle can be realized either by two pistons disposed coaxially within one another and displaceable relative to one another, or by eccentric toothed elements.
    Type: Grant
    Filed: July 3, 1986
    Date of Patent: May 17, 1988
    Assignee: GEZE GmbH
    Inventors: Georg Scheck, Ralf Storandt, Fritz Feucht
  • Bonding of carbon-based components
    Patent number: 4742948
    Abstract: A carbon-carbon composite friction disc is formed from two or more carbon-based structural components secured together by an interface layer which is not itself a structural member but is fusion-bonded to both of the structural components to secure them together. The interface layer may be of metallic material such as a brazing compound, or may be of non-metallic material such as pitch.
    Type: Grant
    Filed: November 7, 1985
    Date of Patent: May 10, 1988
    Assignee: Dunlop Limited
    Inventors: Ronald Fisher, Thomas G. Fennell
  • Apparatus for facing and internal turning
    Patent number: 4741230
    Abstract: An apparatus for facing and internal turning, comprising a rotating housing and at least one carriage bearing a cutting tool and being displaceable transversely to the axis of rotation, has a drive motor in the rotating housing for displacement of the carriage and a distance measurement mechanism for directly measuring the distance of displacement of the carriage in relation to the housing, measurement and supply lines hereby extending between rotating housing and a stationary evaluation and control unit and the measurement signals and energy supply being transferred at a transfer unit from those parts of the measurement and supply lines communicating with the rotating housing to those parts of those lines communicating with the stationary evaluation and control unit.
    Type: Grant
    Filed: July 15, 1986
    Date of Patent: May 3, 1988
    Assignee: Emil Wohlhaupter & Co.
    Inventors: Christian Bohner, Harold Gahr, Gerhard Wohlhaupter
  • Apparatus for use in machining workpieces
    Patent number: 4741232
    Abstract: An apparatus for use in machining a workpiece includes a housing (102) which is operable between a closed condition enclosing a chuck (101) and an open condition. When the housing (102) is in the open condition, an opening (117) extends across the top of the housing and down opposite sides of the housing to provide access to the chuck (101) from both sides of the housing. A workpiece transfer assembly (200) has a downwardly extending structure (204) which is movable along a path (A) extending through the housing (102) when the housing is in the open condition. This enables the transfer structure (200) to move unfinished workpieces (W) to the chuck (101) from one side of the housing and to move finished workpieces from the chuck to the opposite side of the housing. The transfer structure is supported on tracks (201) which extend above the housing.
    Type: Grant
    Filed: November 6, 1986
    Date of Patent: May 3, 1988
    Assignee: The Warner & Swasey Company
    Inventor: Carl J. Myers
  • Screwdriver handgrip having harder and softer zones
    Patent number: 4739536
    Abstract: A handle for tools, specifically for screwdrivers, is disclosed. The handle consists of two materials of different hardness, of which the harder material supporting the tool is incompressible under the forces occurring at operational load, whereas the other material permits slight elastic deformations under forces of load. In order to obtain a hand-sympathetic design which nevertheless transmits high torques, the two gripping zones of softer material are situated adjacent to a gripping zone of harder material located between them.
    Type: Grant
    Filed: July 7, 1986
    Date of Patent: April 26, 1988
    Assignee: Wera Werk Hermann Werner GmbH & Co.
    Inventors: Jan-Eric Bandera, Peter Kern, Roland Schindhelm, Johannes Solf, Karl Lieser
  • Hinge mechanism for a vehicle visor
    Patent number: 4734955
    Abstract: A hinge mechanism including a sleeve member having an inwardly facing bearing surface and a rod member dimensioned to fit in the sleeve member in engagement with the bearing surface. The sleeve member is resiliently flexible but substantially inextensible and has at least one recess formed in its bearing surface, the rod member being provided with a projection shaped to be engageable in the recess. The rod member is an interference fit in the sleeve member with the projection located in the recess and the rod member is rotatable in the sleeve member by causing only resilient deformation of the latter.
    Type: Grant
    Filed: July 7, 1986
    Date of Patent: April 5, 1988
    Assignee: Incoils Limited
    Inventor: John Connor
  • Adjustable traverse rod assembly
    Patent number: 4733435
    Abstract: A traverse rod assembly comprising telescopically adjustable inner and outer rods of the type having a downwardly opening slot at the bottom of the rods. The inner and outer rods each have forward and rear guide rails along opposite sides of the slot and rolled or hemmed upper edges disposed at substantially the same level for supporting drapery carriers for movement along the slot in the inner and outer rods. The rails on the inner rod are provided with lower guide portions arranged to engage and laterally guide the carriers during movement along the inner rod. The inner and outer rods are formed with upper and lower reentrant angles in the top and bottom that define upwardly and downwardly opening channels adjacent the rear of the rod so that the rod can be supported by an intermediate support bracket that is concealed from view from the front of the rod.
    Type: Grant
    Filed: December 16, 1986
    Date of Patent: March 29, 1988
    Assignee: Graber Industries, Inc.
    Inventor: Ronald G. Darner
  • Rotary roller set directional control device
    Patent number: 4731899
    Abstract: The present invention is related to a rotary roller set directional control device, particularly to a rotary roller set device, which is characterized by a novel design wherein two opposite longitudinal positioning slots are positioned at the upper section of a pivotal shaft socket, a pivotal supporting arm with a U-shaped rocker of which the front end is provided with a suitable catch key extended downward. The rocker may swing downward to assemble with the upper section of pivotal shaft socket and insert the catch key in the positioning slot. An annular flange on the top edge of pivotal shaft socket is designed to decrease the contact area between the pivotal supporting arm and the pivotal shaft socket when rotating the pivotal supporting arm to change the catch direction of U-shaped rocker so as to lower the frictional resistance.
    Type: Grant
    Filed: July 18, 1986
    Date of Patent: March 22, 1988
    Inventor: Yung-Ho Huang
  • Door and gate spring
    Patent number: 4731902
    Abstract: A coil spring has elliptical openings in the end turns for non-rotatably receiving elliptically shaped studs which are press-fitted into the spring, the ends being respectively attached to a pair of mounting brackets.
    Type: Grant
    Filed: August 9, 1982
    Date of Patent: March 22, 1988
    Assignee: National Manufacturing Co.
    Inventor: James R. Johnston
  • Wiring grommet with retractable lid
    Patent number: 4730363
    Abstract: A wiring grommet comprised of three components. A retractable lid is carried by a cylindrical cover which is shaped to closely nest within a cylindrical sleeve body. The retractable lid is attached to the cover by means of protrusions formed at each end of the lid. A recess formed in the underside of the cover and lid is shaped to receive a flange on the cylindrical sleeve body so that the profile of the assembled grommet is smooth and inconspicuous. The lid retracts to an open position which is similarly low in profile.
    Type: Grant
    Filed: September 17, 1986
    Date of Patent: March 15, 1988
    Assignee: Illinois Tool Works, Inc.
    Inventor: Ahmad A. Asbaghi
  • Milling cutter
    Patent number: 4729697
    Abstract: A milling cutter comprises a cutter body having at least one insert blade station. At least one insert blade is operably connected with the cutter body at the insert blade station. The insert blade has opposite side faces, and a plurality of peripheral edge faces, with at least one cutting edge formed at the intersection of one side face and one edge face. The insert blade is oriented in the cutter body such that the one edge face defines a tooth face against which a workpiece impinges during cutting, and the one side face defines a clearance space between the insert blade and the workpiece. The one side face is convex in shape to reduce the clearance space for improved cutting efficiency and blade longevity, without causing undesirable contact between the other portions of the insert blade and the workpiece.
    Type: Grant
    Filed: June 18, 1986
    Date of Patent: March 8, 1988
    Assignee: Dijet Inc.
    Inventor: Ralph W. Lacey
  • Method of securing metallic members together
    Patent number: 4727633
    Abstract: Two metallic members are connected together over a defined area of respective surfaces of the members by providing at least one layer of metal on at least one of the surfaces. The or each layer of metal has at least one elementary component and is of essentially uniform composition over the defined area, and is of essentially uniform thickness over the defined area. The two surfaces are brought into confronting, contacting relationship, and heat is applied to cause the metal of the or each layer to melt, whereby the members are bonded together by an alloy having a melting point in the range from about 500 degrees C to about 900 degrees C.
    Type: Grant
    Filed: September 22, 1986
    Date of Patent: March 1, 1988
    Assignee: Tektronix, Inc.
    Inventor: Geoffrey C. Herrick
  • Retractable carrying handle for a storage battery
    Patent number: 4727620
    Abstract: A carrying device for a storage battery is disclosed. In one embodiment, the carrying device comprises two retractable handles attached to the storage battery and guidance members associated with said handles for guiding the movement of the handles. Each of the handles has a crosspiece and arms extending along the sides of the storage battery. The arms contain elongated slits which receive the guidance members and thereby ensure accurate guidance of the handles.
    Type: Grant
    Filed: May 21, 1986
    Date of Patent: March 1, 1988
    Assignee: Varta Batterie Aktiengesellschaft
    Inventor: Klaus Gummelt
  • Three wheel mounting assembly having a tapered insertion member
    Patent number: 4724575
    Abstract: A slideably and rotatably mounted roller member performs a precision take up reel function in the environment of a track mounted, drawable, pleated window covering. The roller member slides along an axis coincident with its axis of rotation as it rotates so that cord being wound therearound attendant its rotation is taken up in the absence of overlapping. One end of the roller member is provided with a centrally bored and threaded plug that screw threadedly engages a fixed position screw member; as the roller member rotates, the engagement of the screw member and the bore drives the plug and hence the roller member in an axial direction. The slideable mount of the roller member is provided in the form of a base member which is slideably received within the roller member housing.
    Type: Grant
    Filed: May 15, 1986
    Date of Patent: February 16, 1988
    Inventor: J. Douglas Fresh
  • Cutting insert with chip control
    Patent number: RE32636
    Abstract: A cutting tool for improved material removal efficiency at relatively high feed rates is disclosed. In a preferred form of an indexable polygonal cutting insert, an edge land and chip contacting ramp surfaces in at least a top face of the insert are advantageously arranged for reduced cutting forces and friction, ample cutting edge strength and inducement of free chip flow. In order to overcome deleterious chip convergence and resultant high pressures in the vicinity of the nose radius of the cutting corner of the insert, a recessed control surface is positioned in each corner portion of the polygonal insert.
    Type: Grant
    Filed: April 7, 1986
    Date of Patent: April 5, 1988
    Assignee: GTE Valenite Corporation
    Inventor: Daniel R. Stashko