Patents by Inventor David Widder

David Widder 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).

  • Laser brazing of annular metal seal member on track link
    Patent number: 10040495
    Abstract: A method of manufacturing an undercarriage track joint assembly includes forming at least a first portion of a seal assembly by laser brazing an annular, metal sealing washer to a first track link of the undercarriage track joint assembly. The method may also include performing the laser brazing to form at least one of an annular fillet of braze material between the first track link and at least a portion of an inner diameter surface of the washer and an annular fillet of braze material between the first track link and at least a portion of an outer diameter surface of the washer.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: August 7, 2018
    Assignee: Caterpillar Inc.
    Inventors: Thierry Andre Marchione, Brent David Widder, Timothy Arthur Thorson, Gregory Jerome Kaufmann
  • LASER BRAZING OF ANNULAR METAL SEAL MEMBER ON TRACK LINK
    Publication number: 20170158269
    Abstract: A method of manufacturing an undercarriage track joint assembly includes forming at least a first portion of a seal assembly by laser brazing an annular, metal sealing washer to a first track link of the undercarriage track joint assembly. The method may also include performing the laser brazing to form at least one of an annular fillet of braze material between the first track link and at least a portion of an inner diameter surface of the washer and an annular fillet of braze material between the first track link and at least a portion of an outer diameter surface of the washer.
    Type: Application
    Filed: December 8, 2015
    Publication date: June 8, 2017
    Applicant: Caterpillar Inc.
    Inventors: Thierry Andre MARCHIONE, Brent David WIDDER, Timothy Arthur THORSON, Gregory Jerome KAUFMANN
  • HANDHELD SCANNING DEVICE WITH TRIPLE DATA ACQUISITION FUNCTIONALITY
    Publication number: 20100044435
    Abstract: A handheld scanning device comprising a magnetic stripe reader, a bar code reader and an RFID reader. All three of the readers are integral to the device, and none of the readers needs to be removed in order to install any of the other readers.
    Type: Application
    Filed: August 22, 2008
    Publication date: February 25, 2010
    Inventors: Sven Ahlberg, David Widder, Kaido Kevvai, Gustav Poola, Markus Kasak, Tiit Liiv, Anti Sullin, Andrei Birjukov