Patents by Inventor William T. Roberts

William T. Roberts has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9554485
    Abstract: A heat sink embodiment has at least one anti-rocking tab that extends outwardly and downwardly from an edge of the body portion of the heat sink. A leading lower edge of the anti-rocking tab is above a top surface of the motherboard when the heat sink is being affixed to the motherboard over a flip chip. During installation of the heat sink to the motherboard, a travel distance limit is imposed by the leading lower edge of the anti-rocking tab, thereby limiting a force that is applied to the die of the flip chip so that an edge and/or a corner of the die of the flip chip is not crushed, or such that the die of the flip chip is not cracked.
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: January 24, 2017
    Assignee: EchoStar Technologies L.L.C.
    Inventors: Jerome A. LaPalme, William T. Roberts
  • Publication number: 20160035642
    Abstract: A heat sink embodiment has at least one anti-rocking tab that extends outwardly and downwardly from an edge of the body portion of the heat sink. A leading lower edge of the anti-rocking tab is above a top surface of the motherboard when the heat sink is being affixed to the motherboard over a flip chip. During installation of the heat sink to the motherboard, a travel distance limit is imposed by the leading lower edge of the anti-rocking tab, thereby limiting a force that is applied to the die of the flip chip so that an edge and/or a corner of the die of the flip chip is not crushed, or such that the die of the flip chip is not cracked.
    Type: Application
    Filed: July 29, 2014
    Publication date: February 4, 2016
    Applicant: EchoStar Technologies L.L.C.
    Inventors: Jerome A. LaPalme, William T. Roberts
  • Patent number: 7843650
    Abstract: An afocal monolithic optical element formed of a shallow cylinder of optical material (glass, polymer, etc.) with fast aspheric surfaces, nominally confocal paraboloids, configured on the front and back surfaces. The front surface is substantially planar, and this lends itself to deposition of multi-layer stacks of thin dielectric and metal films to create a filter for rejecting out-of-band light. However, an aspheric section (for example, a paraboloid) can either be ground into a small area of this surface (for a Cassegrain-type telescope) or attached to the planar surface (for a Gregorian-type telescope). This aspheric section of the surface is then silvered to create the telescope's secondary mirror. The rear surface of the cylinder is figured into a steep, convex asphere (again, a paraboloid in the examples), and also made reflective to form the telescope's primary mirror.
    Type: Grant
    Filed: June 24, 2009
    Date of Patent: November 30, 2010
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventor: William T. Roberts
  • Publication number: 20080121269
    Abstract: A photovoltaic (PV) device comprises at least one PV lamp that includes at least one solar cell chip that generates an electrical current upon exposure to light, and an epoxy lens that encapsulates the solar cell chip, the epoxy lens concentrating incident light onto the solar cell chip. A method of manufacturing a PV device that includes at least one PV lamp comprises fabricating at least one solar cell chip that generates an electrical current upon exposure to light, and forming an epoxy lens that encapsulates the solar cell chip, the epoxy lens concentrating incident light onto the solar cell chip, to thereby form the PV lamp.
    Type: Application
    Filed: August 22, 2007
    Publication date: May 29, 2008
    Inventors: Roger E. Welser, Paul M. DeLuca, William T. Roberts