Patents by Inventor Thomas C. Carlson

Thomas C. Carlson 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: 10359022
    Abstract: A dual ignition system for aircraft that includes a left and right ignition element, each having a primary module and a secondary module, both operational. A switch mechanism activated by a cockpit control panel selects either the primary mode or the secondary mode for each ignition element. The primary modules could be variable mode modules and the secondary modules could be fixed mode modules. Each module includes a sense magnet responsive to a drive shaft to detect engine position. Each fixed module has a sensor cluster activated by the sense magnet and each variable module has a position encoder activated by the sense magnet.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: July 23, 2019
    Inventors: Thomas C. Carlson, Bradley D. Dement
  • Publication number: 20180142665
    Abstract: A dual ignition system for aircraft that includes a left and right ignition element, each having a primary module and a secondary module, both operational. A switch mechanism activated by a cockpit control panel selects either the primary mode or the secondary mode for each ignition element. The primary modules could be variable mode modules and the secondary modules could be fixed mode modules. Each module includes a sense magnet responsive to a drive shaft to detect engine position. Each fixed module has a sensor cluster activated by the sense magnet and each variable module has a position encoder activated by the sense magnet.
    Type: Application
    Filed: November 22, 2017
    Publication date: May 24, 2018
    Inventors: Bradley D. Dement, Thomas C. Carlson
  • Patent number: 9395304
    Abstract: A nanoscale structure fabricated on a planar end facet of an optic fiber is described, to enable detection of molecules by surface-enhanced Raman scattering. The nanoscale structure may comprise an array of nanopillars. The nanoscale structure may also comprise a non periodic, or random, surface-relief structure. The nanoscale structure may be coated in a metal, comprising, for example, silver, gold, aluminum, iridium, platinum, palladium, copper, or a combination of the same. The nanoscale structure may be fabricated on a planar end facet of an optical fiber by interference lithography.
    Type: Grant
    Filed: May 23, 2013
    Date of Patent: July 19, 2016
    Assignees: Lawrence Livermore National Security, LLC, The Regents of The University of California
    Inventors: Xuan Yang, Tiziana C. Bond, Jerald Britten, Thomas C. Carlson, Nazar Ileri, Cindy Larson, Claire Gu
  • Publication number: 20150369744
    Abstract: A nanoscale structure fabricated on a planar end facet of an optic fiber is described, to enable detection of molecules by surface-enhanced Raman scattering. The nanoscale structure may comprise an array of nanopillars. The nanoscale structure may also comprise a non periodic, or random, surface-relief structure. The nanoscale structure may be coated in a metal, comprising, for example, silver, gold, aluminum, iridium, platinum, palladium, copper, or a combination of the same. The nanoscale structure may be fabricated on a planar end facet of an optical fiber by interference lithography.
    Type: Application
    Filed: May 23, 2013
    Publication date: December 24, 2015
    Inventors: Xuan YANG, Tiziana C. BOND, Jerald BRITTEN, Thomas C. CARLSON, Nazar ILERI, Cindy LARSON, Claire GU
  • Publication number: 20080062522
    Abstract: An apparatus and method of cleaning a diffraction grating with minimal use of cleaning chemicals. The apparatus includes a processing vessel having a sump at a lower end thereof, and an inclined platform for receiving a diffraction grating within the processing vessel so that a top surface of the diffraction grating is in an inclined position. This enables fluid runoff from the top surface of the diffraction grating to drain into the sump where it is recirculated via a recirculation line which channels (using a pump) fluid from the sump to a recirculation spout positioned to direct fluid onto the top surface of the diffraction grating. Additionally, by measuring the amount of waste cleaning fluid (acid) collected, a neutralizing agent may be dispensed to neutralize any remaining cleaning fluid in the system so that waste fluid may be released without limitation.
    Type: Application
    Filed: September 10, 2007
    Publication date: March 13, 2008
    Inventors: Jerald A. Britten, Curly Ray Hoaglan, James D. Nissen, Thomas C. Carlson, David Van Lue, Michael D. Aasen
  • Patent number: 4823807
    Abstract: Arthritis and related diseases are diagnosed by recording sound from a joint moving against a predefined resistance or a controlled velocity, and correlating the acoustic amplitude and instantaneous frequency with the joint angle.
    Type: Grant
    Filed: February 11, 1988
    Date of Patent: April 25, 1989
    Assignee: Board of Regents, Univ. of Texas System
    Inventors: I. Jon Russell, Thomas C. Carlson, Gilbert A. Vipraio