Patents Represented by Attorney L. L. Hallacher
  • Patent number: 5113111
    Abstract: A tensioned shadow mask/frame assembly includes horizontal top and bottom members and vertical side members. One of the horizontal members is permanently affixed to the side members and the other horizontal member is slideably supported on the side members. The horizontal members are biased apart to put tension on a shadow mask which is stretched across and permanently affixed thereto. The cross sectional configuration of the horizontal members is an acute angle having a long side and a short side joined at a rounded apex to maximize the stiffness of the members.
    Type: Grant
    Filed: August 12, 1991
    Date of Patent: May 12, 1992
    Assignee: RCA Thomson Licensing Corporation
    Inventor: David W. Fairbanks
  • Patent number: 5113134
    Abstract: A circuit for testing a liquid crystal display for open data lines, for identifying select lines shorted to data lines, and for identifying failed data line scanner stages includes thin film transistors arranged between each data line and a segmented bus. A sectioned shift register sequentially actuates the thin film transistors and the bus segments are monitored while data signals are applied to the data lines. The absence of a voltage on the bus indicates an open data line. The bus is also monitored while select signals are applied to the select lines and the shift register sequentially actuates the thin film transistors, the presence of a voltage on the bus indicates a short between a data line and a select line.
    Type: Grant
    Filed: February 28, 1991
    Date of Patent: May 12, 1992
    Assignee: Thomson, S.A.
    Inventors: Dora Plus, Bruno B. Mourey
  • Patent number: 5105187
    Abstract: A select line scanner circuit for a display device has a plurality of register stages. The register stages each include first and second register segments and first and second latch circuit means which receive select signals and apply oppositely poled logic signals to the output nodes of the register stages. Voltage boosting means are associated with at lest one of the register stages to assure that the logic signals are applied at the proper levels.
    Type: Grant
    Filed: April 18, 1990
    Date of Patent: April 14, 1992
    Assignee: General Electric Company
    Inventors: Dora Plus, Roger G. Stewart
  • Patent number: 5097174
    Abstract: An internal magnetic shield for a color picture tube has lower reluctance in the sides of the shield than the top and bottom of the shield.
    Type: Grant
    Filed: November 23, 1990
    Date of Patent: March 17, 1992
    Assignee: Thomson Consumer Electronics, Inc.
    Inventor: Ralph J. D'Amato
  • Patent number: 5082418
    Abstract: An apparatus for transferring a kinescope and a chassis, which are coupled by cabling, from one location to another includes probes which engage apertures in the chassis to pick up the chassis. A frame supports suction cups to pick up the kinescope. The probes are supported by a bar which is pivotably attached to the frame. The chassis and kinescope are thus separately engaged and released but are simultaneously moved.
    Type: Grant
    Filed: March 26, 1990
    Date of Patent: January 21, 1992
    Assignee: Thomson Consumer Electronics, Inc.
    Inventors: Christopher J. Poux, Donald P. Sinkus
  • Patent number: 5081392
    Abstract: A color picture tube includes a faceplate and a funnel attached to the faceplate. The faceplate has a horizontal dimension M.sub.h and a vertical dimension M.sub.v, with the dimensions having a ratio M.sub.h /M.sub.v greater than one. A magnetic shield is located within the tube. The magnetic shield has a front aperture in the proximity of the faceplate and a rear aperture remote from the faceplate. The front aperture has a horizontal dimension F.sub.h and a vertical dimension F.sub.v and the rear aperture has a horizontal dimension R.sub.h and a vertical dimension R.sub.v. The top and bottom of the rear aperature are close to the sides of the funnel and the sides of the rear aperture are spaced from the funnel by a spacing consistent with the entrance of the electron beams at maximum deflection into the shield.
    Type: Grant
    Filed: September 11, 1990
    Date of Patent: January 14, 1992
    Assignee: RCA Thomson Licensing Corporation
    Inventor: Roger C. Alig
  • Patent number: 5058995
    Abstract: A liquid crystal pixel electrode and a thin film transistor (TFT) structure includes a select line, a portion of which is coated with undoped solid state material. The select line is parallel to a continuous uninterrupted side of the pixel electrode and a data line is parallel to another continuous uninterrupted side of the pixel electrode. A source area and a drain area of doped solid state material are placed over the undoped layer. The source area contacts the data line and the drain area contacts the pixel electrode. The select line also serves as the gate electrode of the TFT. A notch passes through the undoped material between the data line and the drain to prevent leakage.
    Type: Grant
    Filed: March 15, 1990
    Date of Patent: October 22, 1991
    Assignee: Thomson Consumer Electronics, Inc.
    Inventor: Dora Plus
  • Patent number: 5036577
    Abstract: A shrink fit implosion protection band for a CRT having rounded corners is stretched along the diagonals by 1.0% to 1.5% to form necked down areas in the band.
    Type: Grant
    Filed: November 30, 1989
    Date of Patent: August 6, 1991
    Assignee: Thomson Consumer Electronics, Inc.
    Inventor: Harry R. Swank
  • Patent number: 5033802
    Abstract: An enclosure for a television receiver is composed of a base member, a cover member and a bezel member which are joined into a stiff triangular enclosure which supports the receiver tube and protects the tube from implosion because of impacts.
    Type: Grant
    Filed: October 30, 1989
    Date of Patent: July 23, 1991
    Assignee: RCA Licensing Coporation
    Inventor: David W. Fairbanks
  • Patent number: 5013139
    Abstract: An alignment layer for a liquid crystal display device provides optimum molecular alignment, tilt angle and resistivity by depositing a glow discharge layer comprised of carbon, nitrogen, and hydrogen onto the electrodes of the liquid crystal cell.
    Type: Grant
    Filed: October 30, 1989
    Date of Patent: May 7, 1991
    Assignee: General Electric Company
    Inventors: Grezgorz Kaganowicz, Frank P. Cuomo, Leon J. Vieland
  • Patent number: 5011268
    Abstract: An alignment layer for a liquid crystal display device which provides optimum molecular alignment, tilt angle and resistivity is formed by depositing, using glow discharge, an inorganic silicon based material onto the electrodes of the liquid crystal cell.
    Type: Grant
    Filed: October 30, 1989
    Date of Patent: April 30, 1991
    Assignee: General Electric Company
    Inventor: Grzegorz Kaganowicz
  • Patent number: 4980041
    Abstract: The adherence of the alignment layer of a liquid crystal cell is improved by simultaneously glow discharging and sputtering the alignment materials onto the conductors and substrates of the liquid crystal cell.
    Type: Grant
    Filed: October 30, 1989
    Date of Patent: December 25, 1990
    Assignee: General Electric Company
    Inventors: Grzegorz Kaganowicz, John W. Robinson
  • Patent number: 4979920
    Abstract: A system for measuring the Q spacing of a kinescope panel without removing the mask from the panel includes an adder which stores the known thickness of the shadow mask and a known spacing. The adder also receives transducer inputs representative of measurements of the glass thickness, the distance of the shadow mask from a first reference plane and the distance of the panel from a second reference plane. The adder algebraically combines the stored and input data to yield an output representative of the Q spacing.
    Type: Grant
    Filed: August 23, 1989
    Date of Patent: December 25, 1990
    Assignee: Thomson Consumer Electronics, Inc.
    Inventor: Mort J. Nierenberg
  • Patent number: 4923423
    Abstract: In an integrated thermal processing method the bulb is completely processed in a dedicated oven. The inside and outside of the bulb are simultaneously heated. The inside and outside are also simultaneously cooled. During the evacuation a temperature gradient is maintained across the face of the panel to reduce tensile stresses which develop in the bulb skirt area during evacuation.
    Type: Grant
    Filed: June 30, 1989
    Date of Patent: May 8, 1990
    Assignee: RCA Licensing Corporation
    Inventors: George F. Stockdale, Harvey O. Hook, Robert G. Browne, Philip M. Heyman
  • Patent number: 4924356
    Abstract: An illumination system for a display device includes a plurality of lenslets which provide partially collimated light with respect to at least one axis of the display. A light box provides uncollimated light to the lenslets. The light box includes a reflector having apertures which transmit light from the light box to the lenslets. The internal surfaces of the light box and the reflector are highly and diffusely reflective and a high percentage of the light reaches the lenslets.
    Type: Grant
    Filed: December 7, 1988
    Date of Patent: May 8, 1990
    Assignee: General Electric Company
    Inventors: Park French, Wilbur C. Stewart
  • Patent number: 4902023
    Abstract: A resilient, non-porous gasket for a substantially rectangular vacuum chamber includes an outer lip for positioning and holding the gasket on the support frame of the vacuum chamber. An improvement for enabling the gasket to creep during said gasket deformation and for enhancing the sealing of the sealing edge of an object being processed against a sealing surface of the gasket in the presence of curvature of the sealing edge wherein the corners of the outer lip of the gasket are removed.
    Type: Grant
    Filed: December 12, 1988
    Date of Patent: February 20, 1990
    Assignee: Thomson Consumer Electronics
    Inventors: Stephen T. Opresko, Walter E. Root
  • Patent number: 4894007
    Abstract: A ferrofluid seal assembly for providing gas to a rotatable member includes a chamber between the bore of the magnet within the seal and a shaft passing through the bore. Fluid inlet means provides fluid to the chamber. The shaft is hollow from the chamber to one end and communicates with the chamber for providing fluid to a rotable member affixed to the end of the shaft.
    Type: Grant
    Filed: December 12, 1988
    Date of Patent: January 16, 1990
    Assignee: Thomson Consumer Electronics
    Inventor: Stephen T. Opresko
  • Patent number: 4892391
    Abstract: An improved method of arrangement for the cells comprising the pixels of a display device wherein each of the pixels includes a brightest cell, a bright cell, a medium cell and a dark cell. The brightest cell and the bright cell are aligned substantially parallel to one the display axes and the bright cell and the dark cell are diagonally aligned with respect to the axes of the dipslay.
    Type: Grant
    Filed: January 30, 1989
    Date of Patent: January 9, 1990
    Assignee: General Electric Company
    Inventors: Wilber C. Stewart, Albert P. Pica, William R. Roach
  • Patent number: 4852000
    Abstract: A system for maintaining a business record includes a main menu having a plurality of modular expense routines and a plurality of modular operational assistance routines. All the modular routines are individually identified and selectively callable by entering an individual alpha-numeric identifier for the particular module selected.
    Type: Grant
    Filed: September 24, 1987
    Date of Patent: July 25, 1989
    Assignee: Universal Data Associates
    Inventors: Wayne A. Webb, Keith D. Scearce
  • Patent number: 4834021
    Abstract: An evaporated material distribution controller includes specially configured portions having shaped edges to maintain the ratio of the thickest and thinnest portions of the layer of material deposited onto a surface within a ratio between 1.5:1.00 and 1.00:1.00.
    Type: Grant
    Filed: December 14, 1987
    Date of Patent: May 30, 1989
    Assignee: RCA Licensing Corporation
    Inventors: Stephen T. Opresko, Walter E. Root