Patents Represented by Attorney George A Rolston
  • Patent number: 4713030
    Abstract: A marine craft comprises an outer hull of completely spherical shape, an inner hull of hemispherical shape, universal bearings between the inner hull and outer hull supporting the inner structure in the outer hull and permitting universal movement, and a mass in the inner hull biassing it into a reference position. A plurality of spaced apart groups of four fins are provided on the exterior of the outer hull to procure propulsion of the craft along the surface of the water on rotation of the outer hull about any diametric axis. The four fins of each group are joined to each other in a generally cruciform configuration. The fins of any one such group are coplanar with a first pair of mutually perpendicular diametric axes of the outer hull while the fins of another one of such groups are coplanar with a different pair of mutually perpendicular diametric axes.
    Type: Grant
    Filed: January 22, 1987
    Date of Patent: December 15, 1987
    Inventor: John W. Ingle
  • Patent number: 4711980
    Abstract: Apparatus for forming nails into a nailing strip, in which nails are welded to wire strips, and having a nail feed, a nail indexing wheel indexing nails into predetermined nail spacings, a nail rotator to bring their heads in a predetermined orientation, a nail handling slide for receiving nails, a wire feed for feeding wire to one side of the nails, electrical welding contacts for pressing the wire against nail and passing a welding current to weld the wire to the nail, a moving device for moving the welding contacts towards and away from the nails, and a movement device for moving the nails along the nail slide.
    Type: Grant
    Filed: February 18, 1986
    Date of Patent: December 8, 1987
    Assignee: Sigma Tool & Machine Limited
    Inventor: Walter H. Leistner
  • Patent number: 4709650
    Abstract: A launching device for rescue craft having a base portion, a ramp tilted at angle to procure initial movement of the rescue craft and, a chute with inboard and outboard ends, pivotally mounted on the base the chute being swingable between a more or less upright storage position, and a launching position, in which it swung outwardly and downwardly at a predetermined chute angle, the chute receiving the rescue craft as it moves off the ramp and supporting it for motion at a downward angle away from such base.
    Type: Grant
    Filed: May 9, 1985
    Date of Patent: December 1, 1987
    Inventor: John W. Ingle
  • Patent number: 4690192
    Abstract: An awning having a modular frame with frame pieces, having longitudinal recesses, junctions joining the frame pieces to form a composite awning frame, flexible plastic panels stretched over the composite frame and fastened in the longitudinal recesses, and, elongated flexible wedging strips shaped to be force-fitted into the recesses together with portions of the flexible panels thereby wedging the portions of the flexible panels and securing them.
    Type: Grant
    Filed: April 29, 1986
    Date of Patent: September 1, 1987
    Inventor: Johann Stilling
  • Patent number: 4682433
    Abstract: A vinyl fabric sign having a panel of vinyl fabric, an undercoat layer of vinyl solvent based transparent coating, a graphics transfer of vinyl based paint bonded to the front of the undercoating, and, an exterior coating layer of vinyl solvent based transparent coating over the front of the graphics and the undercoating, the exterior coating combining chemically with the graphics and bonding it chemically to the undercoating.
    Type: Grant
    Filed: March 28, 1985
    Date of Patent: July 28, 1987
    Inventor: Johann Stilling
  • Patent number: 4679975
    Abstract: A nailing strip for use in a power-operating nailing hammer, and having a plurality of nails arranged in a strip, a junction wire fastened to the shank of each nail in the strip, and a sheath covering the wire.
    Type: Grant
    Filed: April 29, 1986
    Date of Patent: July 14, 1987
    Inventor: Herbert E. Leistner
  • Patent number: 4672890
    Abstract: A lightweight load bearing register having a frame with a generally L-shaped configuration, the frame being in four pieces joined at the corners, and having a supporting grid of groups of transverse and longitudinal strips of sheet metal, one of the groups being formed of a single thickness of sheet metal, with notches at spaced intervals, and the other group being formed of two thicknesses of sheet metal, having a thickness thinner than one-half of the thickness of the first group, the strips in the second group defining an elongated folded blade-like structure with a hollow interior, with a space between opposite sides which is substantially equal in width to the thickness of the sheet metal of which they are formed, and radiussed along at least their upper extremity, the width of the blade members being slightly greater than a dimension of the notches in the first group so that when the second group is forced into the notches they will be squeezed, reducing the spacing between their opposite sides.
    Type: Grant
    Filed: June 13, 1986
    Date of Patent: June 16, 1987
    Assignee: Rachels Industries, Inc.
    Inventor: Lloyd G. Dayus
  • Patent number: 4669130
    Abstract: A garment construction having a front panel and a back panel, and in which the back panel has: a seat portion for covering the seat and back, and two leg portions all cut integrally out of a single panel, and the upper edge of the seat portion defines a curved edge, and the lower region of the seat portion defines a lower curved edge extending partially into the seat region, and in which the front panel has an abdomen portion and two leg portions, all cut integrally out of a single panel, and the upper edge of the abdomen portion defines a generally downwardly curved edge, and, the lower edge of the abdomen portion defines a downward extension of this abodomen portion extending between the legs, and through the crotch area and, being shaped and joined to the lower edge of the back panel.
    Type: Grant
    Filed: February 21, 1986
    Date of Patent: June 2, 1987
    Inventor: Joseph Brown
  • Patent number: 4670195
    Abstract: A carburetor, for use in association with a liquid fuel, comprising a barrel means having bore-defining wall means, defining a bore therethrough, a central carburetor axis, an upstream end and a downstream end, an annular ridge forming a constriction in the barrel means, a dissipator body member of generally elongated globular pear-like shape having a maximum cross-section transverse to the barrel means complementary to and downstream of the constriction, the body member being mounted coaxially with the carburetor axis, fuel dissipating passageways through the body member for delivering fuel to the outer surface thereof downstream of the ridge, the ridge and the dissipator body member being movable relative to each other, to establish an annular air passage between the body member, and the downstream side of the ridge, and, fuel line means connecting the fuel dissipating passageways for receiving liquid fuel.
    Type: Grant
    Filed: April 26, 1985
    Date of Patent: June 2, 1987
    Inventor: Richard E. G. Robson
  • Patent number: 4663625
    Abstract: An identification system to be used in association with a set of objects or persons whereby any member of the set may be automatically identified while the member is located within a predetermined interrogation zone, wherein the system has an oscillator and field coils by which an oscillating electromagnetic field is established in the interrogation zone, an identification tag associated with each member of the set of objects or persons, each tag having a core strip of magnetically responsive material of a type which abruptly reaches saturation at a predetermined level of magnetic field, an electromagnetic coil wrapped around the strip, a switch connected with the coil, electronic circuitry for controlling the opening and closing of the switch according to a sequence in timed relation to the half cycles of the electromagnetic field, which sequence defines an identification code for the tag, and a first antenna connected to the circuitry where the circuitry may be operated by power derived from the electromagn
    Type: Grant
    Filed: December 20, 1985
    Date of Patent: May 5, 1987
    Assignee: Motion Magnetics Inc.
    Inventor: Robert G. Yewen
  • Patent number: 4658483
    Abstract: Apparatus for shrinking thread having a spool with a speed control, a liquid tank and rollers for guiding thread into and out of the tank, a drive for drawing the thread off the spool and through the tank, a drying chamber, and rollers in the chamber for guiding the thread, a tension releaser between the drying chamber and the drive to relax tension in the thread, a thread wind-up, a speed sensor for sensing the speed of the thread, and, a process control connected to the speed sensor, and to the drive, and to the speed control to control their operation.
    Type: Grant
    Filed: April 26, 1985
    Date of Patent: April 21, 1987
    Inventor: George L. Baghdadi
  • Patent number: 4658718
    Abstract: A product press, for supporting product during processing, and having a support frame, at least one fixed tray member fixed to the support frame, at least one movable tray movable towards and away from the fixed tray for holding product, biasing means urging the movable tray towards the fixed tray for applying pressure to product stored therebetween, and means for releasably holding the trays apart.
    Type: Grant
    Filed: August 29, 1985
    Date of Patent: April 21, 1987
    Assignee: Knud Simonsen Industries Limited
    Inventors: Guy E. Buller-Colthurst, Knud Jespersen
  • Patent number: 4655278
    Abstract: A method and apparatus are disclosed for simultaneously regulating the temperature of interior air, and ventilating the interior air with air from outside by means of passing said interior air through an interior heat exchanger, simultaneously passing outside air through an outside heat exchanger, extracting a portion of the inside air, and directing it to the outside air for venting outside, simultaneously extracting a portion of the outside air and venting it to the inside air, continuously passing a heat exchange medium into one of the heat exchangers, and transferring the heat exchange medium from one heat exchanger to the other heat exchanger, via an expansion device to procure transfer of heat from one heat exchanger to the other, and passing the heat exchange medium through flow controls, responsive to temperature of the inside air, to selectively direct flow of medium either to one of the heat exchangers or to the other. Also disclosed is a method of regulating temperature by means of the system.
    Type: Grant
    Filed: September 27, 1985
    Date of Patent: April 7, 1987
    Assignee: Cambridge Manufacturing Climate Control Products Inc.
    Inventor: Michael Seguin
  • Patent number: 4653564
    Abstract: A blind apparatus comprising at least two tracks having adjacent ends meeting at a corner defined therebetween, the tracks defining two opposite ends remote from such corner, a rotation shaft for each track, a lead traveller in each track, moving along a lead traveller path of predetermined length from an open position at one end of the path to a closed position at the other end of the path, pluralities of travellers, forming groups, associated with respective lead travellers, each traveller having a rotatable slat shaft and being connected to a rotation shaft whereby upon rotation of the rotation shaft, the slat shaft may be rotated, adjacent travellers in the same group being connected by links, each lead traveller being connected to an adjacent traveller in its respective group by a further link, a flexible control element attachable to the lead travellers, and, a flexible coupling connecting adjacent rotation shafts at the corner, with all lead travellers being movable simultaneously along respective path
    Type: Grant
    Filed: November 25, 1985
    Date of Patent: March 31, 1987
    Inventor: Norbert Marocco
  • Patent number: 4644857
    Abstract: A processing chamber for processing products and having different processing conditions in different chamber zones, a single continuous conveyor extending through the chamber from one end to the other, unit supports supportable on the conveyor for moving units from one end to the other, a first unit movement system to move units through the chamber at a predetermined first speed, a second unit movement system for moving units through the chamber at a predetermined second speed, engagement devices interengageable between the unit supports and the first movement system, or the second movement system, selectively, and a control to control the first and second movement system for selective timed operation.
    Type: Grant
    Filed: September 27, 1985
    Date of Patent: February 24, 1987
    Inventor: Guy E. Buller-Colthurst
  • Patent number: 4640644
    Abstract: Apparatus for removing material from a surface, for use in association with a source of water at a pressure within the range of about 10,000 to 25,000 psi, the apparatus comprising, a carriage vehicle, extendable arm mounted on the vehicle and defining a free end, a nozzle being movable in a transverse direction, the nozzle including a housing and a rotatable nozzle mounted thereto, a hose connecting the source of water to the nozzle, a motor attached to the nozzle operable to rotate the nozzle, and an extender attached between the arm and the vehicle operable to extend and retract the arm relative to the vehicle.
    Type: Grant
    Filed: April 12, 1985
    Date of Patent: February 3, 1987
    Assignee: Indescor Hydrodynamics Inc.
    Inventors: Ryszard J. Puchala, Stephen J. Miko
  • Patent number: D290025
    Type: Grant
    Filed: February 21, 1984
    Date of Patent: May 26, 1987
    Assignee: Discovery Tags Inc.
    Inventor: Mary Cole
  • Patent number: D291454
    Type: Grant
    Filed: October 3, 1985
    Date of Patent: August 18, 1987
    Inventor: John Broadfoot
  • Patent number: D292355
    Type: Grant
    Filed: December 13, 1984
    Date of Patent: October 20, 1987
    Assignee: CDA Industries Inc.
    Inventor: Randall G. Headon
  • Patent number: D292743
    Type: Grant
    Filed: November 15, 1984
    Date of Patent: November 17, 1987
    Assignees: Patrick Plastics Inc., Glomar Southeast Asia (PTE) Ltd.
    Inventor: Patrick Hung