Patents Examined by Palmer Demeo
  • Patent number: 4482840
    Abstract: The invention relates to disc-like metallic means for supporting the cathode assembly in a miniaturized cathode ray tube single electron gun structure. Its substantially planar construction with radially extending supporting leg elements incorporates shapings which achieve both compactness and ruggedness. The beneficial strengthening effects are provided by the integration of a rim on the disc portion with U-shaped cross-sectional shapings of the leg elements.
    Type: Grant
    Filed: September 27, 1982
    Date of Patent: November 13, 1984
    Assignee: North American Philips Consumer Electronics Corp.
    Inventors: Floyd K. Collins, Donald L. Say
  • Patent number: 4482842
    Abstract: In a curved tube type ultra high pressure mercury discharge lamp device of the type comprising an arcuate glass tube, a quantity of mercury contained in both ends of the glass tube and electrodes projecting into the glass tube beyond surfaces of the mercury for creating electric discharge between the electrodes, throttles are formed on an inner surface of the glass tube near the electrodes. The throttles have diameters smaller than an inner diameter of the glass tube and the mercury is contained in spaces between the throttles and the both ends of the glass tube.
    Type: Grant
    Filed: September 29, 1981
    Date of Patent: November 13, 1984
    Assignee: Hitachi, Ltd.
    Inventors: Takashi Fujimura, Yoshifumi Tomita, Kiyoshi Sawatari
  • Patent number: 4481442
    Abstract: To reduce the operating temperature of a U-shaped or multiple U-bent fluocent lamp, the respective longitudinal and transverse sectional elements of the U-shaped lamp are so related that the outer generating line M.sub.Q of the individual transverse tube sections (4; 20, 21, 22) is substantially straight;the diameter D.sub.LQ in the tube bends (5, 6; 23, 24, 25, 26, 27, 28) at the transition between the longitudinal tube sections (2, 3; 16, 17, 18, 19) and the respective transverse tube sections (4; 20, 21, 22) is larger than the diameter D.sub.Q of the individual transverse tube sections in the middle thereof,and the diameter D.sub.Q of the transverse tube section is at least as large as the diameter D.sub.L of the longitudinal tube sections;a depression or dent can be formed at the center of the outer surface of the transverse tube section, and the corners of the transverse tube section can include additional heat dissipating material to further reduce the operating temperature.
    Type: Grant
    Filed: February 26, 1982
    Date of Patent: November 6, 1984
    Assignee: Patent Treuhand-Gesellschaft fur elektrische Gluhlampen mbH
    Inventors: Wolfgang Albrecht, Dieter Hofmann, Lutz Klein, Ernst Panofski
  • Patent number: 4481475
    Abstract: A betatron for accelerating charged particles in a toroidal vacuum chamber comprisinga betatron magnetic field generator;a toroidal magnetic field generator;a generating circuit for generating a charged particle beam into the toroidal chamber with an energy and current such that the ratio of the Budker parameter .nu. to the relativistic factor .gamma. of the beam in the range .nu./.gamma.=0.005 to 0.
    Type: Grant
    Filed: August 5, 1982
    Date of Patent: November 6, 1984
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Christos A. Kapetanakos, Phillip Sprangle
  • Patent number: 4479073
    Abstract: A cathode support, in an electron gun of a cathode ray tube comprising four lamellae (22, 24, 25, 30) which are connected together by means of an electrically insulating sealing glass (23). A first one of the lamella (22) engages a first electrode (10) of the electron gun. Second and third lamellae (24, 25) are situated substantially in one plane, are electrically-insulated from each other, and are cathode filament. The cathode shaft (33) is suspended from a fourth one of the lamellae (30). The cathode support is well suited for automated mass production.
    Type: Grant
    Filed: August 21, 1981
    Date of Patent: October 23, 1984
    Assignee: U.S. Philips Corporation
    Inventor: Henri J. G. M. Van Daelen
  • Patent number: 4479072
    Abstract: To accurately position a halogen cycle incandescent lamp within a reflector o form a sealed-beam headlight, a carrier is provided for the lamp with a seating surface thereon, the lamp being accurately positioned and aligned with respect to the carrier and its seating surface by optical alignment outside of the reflector, the seating surface then being fitted against a matching abutment forming a locating surface on the reflector, the lamp-carrier subassembly being secured in the reflector, for example by form-fitting interengagement, adhesion, or the like. The reflector may have a large opening and the carrier in form of a disk, or smaller openings and the carrier in form of a ring inserted from the reflector end into the reflector.
    Type: Grant
    Filed: December 28, 1981
    Date of Patent: October 23, 1984
    Assignee: Patent Truehand-Gesellschaft fur elektrische Gluhlampen mbH
    Inventors: Manfred Gaugel, Walter Schonherr
  • Patent number: 4473774
    Abstract: CRT (cathode-ray tube) comprises an evacuated glass envelope, an electron-gun mount assembly housed in the envelope, the electrodes of said envelope being confined by closely-spaced glass surfaces, and an insulative coating on said glass surfaces opposite electrodes of said mount assembly. The insulative coating is a substantially-continuous, noncrystalline film of a nonionic organic polymeric material.
    Type: Grant
    Filed: February 9, 1982
    Date of Patent: September 25, 1984
    Assignee: RCA Corporation
    Inventor: Karl G. Hernqvist
  • Patent number: 4471263
    Abstract: A display panel comprises a gas-filled envelope made up of a base plate and a face plate sealed together hermetically. The base plate is provided with a plurality of parallel, longitudinal slots in its top surface, and vertical slots in its end edges, and an anode wire is disposed in each of the longitudinal slots in the base plate, and they are recessed in the edge slots and terminate at pins secured to the bottom surface of the base plate. Cathode electrodes are provided on the base plate, and they also terminate at pins secured to the bottom surface of the base plate. With this arrangement, panels can be butted end to end to provide a longer line of characters than one panel alone.
    Type: Grant
    Filed: March 8, 1982
    Date of Patent: September 11, 1984
    Assignee: Burroughs Corporation
    Inventor: Edgar L. Harvey
  • Patent number: 4467242
    Abstract: A cathode ray tube includes a faceplate panel with a plurality of electrode support studs distributed about and attached to the panel. A color selection electrode having a plurality of support springs is disposed within the panel. Each of the support springs comprises a strap-like element having a proximal end secured to the electrode and a distal end spaced from the electrode. A washer-like element is located between the panel and the distal end of at least one of the strap-like elements. The washer-like element has a frustoconically-shaped portion with an aperture therein for snugly receiving one of the studs. The base portion of the washer-like element is substantially flat and is permanently secured to the strap-like element near its distal end.
    Type: Grant
    Filed: October 18, 1982
    Date of Patent: August 21, 1984
    Assignee: RCA Corporation
    Inventors: Leonard P. Wilbur, Jr., Myron H. Wardell, Jr.
  • Patent number: 4464602
    Abstract: The structure of a thin film electroluminescent device wherein an insulating layer (Y.sub.2 O.sub.3) is disposed between a pair of outer active layers of doped semiconductor (ZnS:Mn). Contiguous to one outer layer of ZnS:Mn is a metal electrode while a transparent electrode is contiguous to the other outer ZnS:Mn layer. The composite structure, moreover, is formed on and supported by a glass substrate. Electroluminescent phenomenon occurs primarily at the layer interfaces upon the application of an alternating voltage applied across electrodes. Such a structure is more resistant to failure due to the fact that the ZnS:Mn layers next to the electrodes act as current limiting layers for preventing breakdown and destruction of the metal electrode for a certain applied voltage which would otherwise occur in electroluminescent structures having the active ZnS:Mn layer sandwiched between two insulating layers.
    Type: Grant
    Filed: January 28, 1982
    Date of Patent: August 7, 1984
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Joseph Murphy