Patents Represented by Attorney Robert T. Mayer
  • Patent number: 4926074
    Abstract: A semiconductor switch comprising a lateral DMOS and a lateral IGT both of which can be fabricated in a monolithic integrated circuit. In operation the lateral DMOS stays on while the lateral IGT is switched off in order to reduce turn off power dissipation.
    Type: Grant
    Filed: October 24, 1988
    Date of Patent: May 15, 1990
    Assignee: North American Philips Corporation
    Inventors: Barry M. Singer, Gert W. Bruning, Satyendranath Mukherjee
  • Patent number: 4906888
    Abstract: A dual arc tube high pressure discharge lamp with a support frame connected to an electrical connector comprising a U-shaped piece of wire the axes of the legs of which are offset from the base so that the plane passing through the axes of the legs does not pass through the middle of the base of the wire.
    Type: Grant
    Filed: May 6, 1988
    Date of Patent: March 6, 1990
    Assignee: North American Philips Corporation
    Inventors: John P. Dunn, Kathleen P. Bernard
  • Patent number: 4905076
    Abstract: A three dimensional projection television system in which the screen of the receiver alternatively receives a television picture field as polarized by polarizing apparatus and a television picture field which is orthogonally polarized with respect to the fields polarized by the polarizing apparatus. Also disclosed in a receiver for use in such a system. The receiver includes three projectors each projecting through a polarizer and an individual electro-optical crystal device.
    Type: Grant
    Filed: August 12, 1986
    Date of Patent: February 27, 1990
    Assignee: N.A. Philips & U.S. Philips Corporation
    Inventors: Marcellinus J. J. C. Annegarn, Sing L. Tan, David A. Cammack, Douglas A. Stanton, Rameshwar N. Bharagava
  • Patent number: 4895540
    Abstract: A method of making an axial filament structure for a lamp in which the filament is concentric with the axis of the envelope, wherein a hook-like shape (131) is formed in a support member (117) which stretches the filament to its final turns-per-inch ratio.
    Type: Grant
    Filed: March 30, 1988
    Date of Patent: January 23, 1990
    Assignee: North American Philips Corporation
    Inventors: Gustaaf Siaens, Thomas Clouse, IV, G. George Balog
  • Patent number: 4895028
    Abstract: In pull-testing wire bonds on an electrical device, an upward pulling force is applied to a wire loop by a motor-driven loading arm through a hook which is connected to the free end of a flexible cantilever beam in the arm. A strain gauge is provided on the beam to measure its deflection and thus the applied pulling force and supply a signal corresponding to this measured force. The actual forces applied to the bonds is calculated by generating a signal signifying the distance the hook has moved when the strain gauge starts to generate a signal.
    Type: Grant
    Filed: January 27, 1989
    Date of Patent: January 23, 1990
    Assignee: U.S. Philips Corporation
    Inventor: Robert T. Mayer
  • Patent number: 4868534
    Abstract: A coil assembly including an adaptor for receiving wire connectors for the end wires of appliance coils whereby the wire connectors are secured and located in a uniform manner.
    Type: Grant
    Filed: March 21, 1989
    Date of Patent: September 19, 1989
    Assignee: North American Philips Corporation
    Inventor: Henry Pikul
  • Patent number: 4868449
    Abstract: A dual arc tube high pressure discharge lamp with a locating element for one end of each discharge tube in which the locating element comprises an H-shaped piece of stamped metal with a leg of the H inserted in the tubular electrode assemblies of each of the dual arc tubes.
    Type: Grant
    Filed: May 6, 1988
    Date of Patent: September 19, 1989
    Assignee: North American Philips Corporation
    Inventors: John P. Dunn, Kathleen P. Bernard
  • Patent number: 4808003
    Abstract: An optical height measuring arrangement is described in which the radiation reflected from the surface to be measured is projected towards a position-dependent radiation-sensitive detection system via a lens system. The direction of the beam which is incident on the surface is varied at a high frequency and the amplitude of the output signal of the detection system is a measure of the distance to be measured. When two detection systems are employed it is also possible to measure the surface roughness.
    Type: Grant
    Filed: November 10, 1986
    Date of Patent: February 28, 1989
    Assignee: U.S. Philips Corporation
    Inventor: Henricus M. M. Kessels
  • Patent number: 4798294
    Abstract: A shipping tray assembly for use in shipping an article having casters whereby a section of the tray assembly can be removed so that the article may be rolled out of the tray on its casters.
    Type: Grant
    Filed: August 31, 1987
    Date of Patent: January 17, 1989
    Assignee: North American Philips Corp
    Inventor: Richard Bodi
  • Patent number: 4796796
    Abstract: A soldering apparatus comprising a soldering station (10) with a system for producing at least one soldering wave (P2, P3) and a transport device extending above the soldering station (10). Several resilient supporting elements (18) are arranged in one or more rows at right angles to the direction of transport (P1) for resiliently supporting a printed circuit board (24) to be subjected to a soldering treatment. Due to the supporting elements (18), sagging of the board (24) and flushing of the board with solder are avoided (FIG. 3).
    Type: Grant
    Filed: March 31, 1987
    Date of Patent: January 10, 1989
    Assignee: U.S. Philips Corp.
    Inventor: Johannes C. Habraken
  • Patent number: 4793071
    Abstract: The invention relates to an arrangement for measuring the relative distance of closely adjacent objects, in particular for measuring and adjusting the distance between a printing head and a roller in needle printers, in which the chamber of a distance measuring sensor filled with liquid, which chamber is bounded by a diaphragm-like wall, is reduced in volume by deflection, while a part of the liquid escapes into an ascending conduit visible from the outside. This arrangement can be particularly readily manipulated in that the distance measuring sensor (1) comprises a rigid base layer (4), to which a solid intermediate layer (5) is applied, which has recesses for forming the chamber and the ascending conduit adjoining an opening of the chamber (7), which are closed by the rigid base layer (4) and a rubber-elastic at least partly transparent covering layer (6).
    Type: Grant
    Filed: November 6, 1987
    Date of Patent: December 27, 1988
    Assignee: U.S. Philips Corporation
    Inventors: Dieter Steinseifer, Ivar-Rudolf Schwertner
  • Patent number: 4787865
    Abstract: A base for three-way lamps in which it is easier to feed lead wires through and a method of making such bases.
    Type: Grant
    Filed: December 4, 1986
    Date of Patent: November 29, 1988
    Assignee: North American Philips Lighting Corp.
    Inventors: Phillip A. Livera, Paul P. Bracaglia
  • Patent number: 4781641
    Abstract: A tool for making bases for three-way lamps in which it is easier to feed lead wires through because the tool has a first projection in the middle of its base which projection has a round cross-section of a given diameter in the plane perpendicular to the tool's longitudinal axis and a second projection having a cross-section in the forementioned plane having a longer circumferential dimension than a radial one and in which the circumferential dimension is at least as large as the diameter of the first projection in the forementioned plane.
    Type: Grant
    Filed: December 4, 1986
    Date of Patent: November 1, 1988
    Assignee: North American Philips Lighting Corp.
    Inventors: Phillip A. Livera, Paul P. Bracaglia
  • Patent number: 4778275
    Abstract: A method and an arrangement for aligning relative to each other a mask pattern (C) and a substrate (W) which are both provided with two alignment marks wherein by using two separate alignment systems (AS.sub.1, AS.sub.2) which are each associated with one mask mark (M.sub.1, M.sub.2) and which are each used for aligning the substrate marks (P.sub.1, P.sub.2) relative to said mask marks the substrate (W) and the mask (M) can be aligned accurately without referring to the frame of the exposure apparatus and in addition it is possible to detect magnification errors.
    Type: Grant
    Filed: September 24, 1986
    Date of Patent: October 18, 1988
    Assignees: U.S. Philips Corp., ASM Lithography
    Inventors: Martinus A. van den Brink, Jan van Eijk
  • Patent number: 4774431
    Abstract: A high pressure discharge lamp arrangement in which the support wire for the arc tube of the lamp has its end which is inserted in the open tubular electrode structure of the lamp expanded so that its external dimension more nearly equals the internal dimension of the tubular structure.
    Type: Grant
    Filed: September 29, 1986
    Date of Patent: September 27, 1988
    Assignee: North American Philips Lighting Corp.
    Inventors: John P. Dunn, Kent L. Collins, Norman R. King
  • Patent number: 4774560
    Abstract: At least one annular region (11,12, . . . ) extends around an active device region (10) and is located within the spread of a depletion layer (25) from a reverse-biased p-n junction (20) formed by the device region (10) to increase the breakdown voltage of the junction (20). The device region (10) and/or at least one inner annular region (11,12, . . . ) includes at least one shallower portion (10b,11b, . . . ) which extends laterally outwards from a deep portion (10a,11a,12a, . . . ) and faces the surrounding annular region to change the spacing and depth relationship of these regions. This permits high punch-through voltages to be achieved between the regions (10,11,12, . . . ) while reducing peak fields at the bottom outer corners of the regions (10,11,12, . . . ). Inwardly-extending shallow portions (11c,12c, . . . ) may also be included. The shallow portions (10b,11b,11c,12c . . .
    Type: Grant
    Filed: November 10, 1987
    Date of Patent: September 27, 1988
    Assignee: U.S. Philips Corp.
    Inventor: David J. Coe
  • Patent number: D297830
    Type: Grant
    Filed: February 7, 1986
    Date of Patent: September 27, 1988
    Assignee: U.S. Philips Corporation
    Inventor: Konrad Ellermeier
  • Patent number: D298173
    Type: Grant
    Filed: August 12, 1985
    Date of Patent: October 18, 1988
    Assignee: U.S. Philips Corp.
    Inventor: Evert Oosterheerd
  • Patent number: D298933
    Type: Grant
    Filed: February 4, 1986
    Date of Patent: December 13, 1988
    Assignee: U.S. Philips Corp.
    Inventors: Murray I. C. Camens, Graham J. Hinde
  • Patent number: D299128
    Type: Grant
    Filed: August 18, 1986
    Date of Patent: December 27, 1988
    Assignee: U.S. Philips Corporation
    Inventor: Konrad Ellermeier