Patents by Inventor Thomas Bartlett

Thomas Bartlett 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: 11235788
    Abstract: A wayside railway sensor package is provided to detect railway wheels for the purposes of assessing the speed and direction of a train in order to align any measured characteristic on said moving train with the proper vehicle. The stand-alone package is easily installed in the web of the rail using standard tools. When used in combination with recent processing techniques, the package can be used to replace one or more components or subsystems on all common wayside detectors while also providing enhanced capabilities and improved reliability. The package also contains sensors that provide data used for assessing additional rail, wheel, and vehicle conditions directly.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: February 1, 2022
    Assignee: UNION PACIFIC RAILROAD COMPANY
    Inventors: Todd Snyder, Evan Milton, James McDaniel, Thomas Bartlett, Zach Royer
  • Publication number: 20200023871
    Abstract: A wayside railway sensor package is provided to detect railway wheels for the purposes of assessing the speed and direction of a train in order to align any measured characteristic on said moving train with the proper vehicle. The stand-alone package is easily installed in the web of the rail using standard tools. When used in combination with recent processing techniques, the package can be used to replace one or more components or subsystems on all common wayside detectors while also providing enhanced capabilities and improved reliability. The package also contains sensors that provide data used for assessing additional rail, wheel, and vehicle conditions directly.
    Type: Application
    Filed: March 25, 2019
    Publication date: January 23, 2020
    Inventors: Todd Snyder, Evan Milton, James Mcdaniel, Thomas Bartlett, Zach Royer
  • Publication number: 20070256400
    Abstract: An electric implement lift system for mower cutting units may include an electric motor having a rotatable output shaft with a pivot bracket mounted thereto, a lift link or a pair of lift links, each lift link having a first end connected to the pivot bracket and a second end connected to a lift arm, the output shaft rotatable in a first direction to raise the mower cutting unit and in a second direction to lower the mower cutting unit. The output shaft may be rotatable in the first direction to move the cutting unit to a top/center position and rotatable further in the first direction to move the cutting unit to a raised/transport position.
    Type: Application
    Filed: May 5, 2006
    Publication date: November 8, 2007
    Inventors: Robert Henson, Harlin Trefz, Thomas Bartlett
  • Patent number: 5433116
    Abstract: The prevailing tension in an elongate strand, such as a textile yarn, is instantaneously measured, even at very low levels of tension and at fine incremental changes in tension, by a tension measuring apparatus utilizing a pair of fixed contact arms spaced from one another to define a strand contact line therebetween and an intermediate cantilevered sensing arm disposed at an equal spacing from each fixed contact arm and at a lateral spacing from the stand contact line. The fixed contact arms and the sensing arm are contacted with the strand simultaneously at the same common lateral side of the strand to cause the strand to deflect from the strand contact line at equivalent strand break angles between the respective strand contact points on the fixed contact arms and on the sensing arm.
    Type: Grant
    Filed: February 24, 1994
    Date of Patent: July 18, 1995
    Assignee: On Line, Inc.
    Inventors: Kevin S. Ahlstrom, Thomas Bartlett