Patents by Inventor Thomas Wollstadt

Thomas Wollstadt 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).

  • Simplified housing for a fuel cell compressor
    Patent number: 8616831
    Abstract: A compressor includes a shaft assembly including a thrust disk disposed on a main shaft and a housing having a first portion and a second portion, the first and second portions adapted to receive the shaft assembly and enclose the shaft assembly therebetween, wherein the shaft assembly is rotatably disposed within the housing, and wherein at least one of the first portion and the second portion includes a shaft assembly retention feature for receiving the thrust disk to regulate a motion of the shaft assembly.
    Type: Grant
    Filed: August 11, 2009
    Date of Patent: December 31, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Thomas Wollstadt, Grant William Brady, Gary L. Villeneuve
  • Fuel cell air humidifier
    Patent number: 7938386
    Abstract: An air humidifier is disclosed, the air humidifier including a caseless humidification module, wherein sealing properties of the humidification module are optimized.
    Type: Grant
    Filed: March 7, 2007
    Date of Patent: May 10, 2011
    Assignee: GM Global Technology Operations LLC
    Inventors: Christian Koenig, Thomas Wollstadt, Thomas Hild, Rocco Schoene
  • SIMPLIFIED HOUSING FOR A FUEL CELL COMPRESSOR
    Publication number: 20110038719
    Abstract: A compressor includes a shaft assembly including a thrust disk disposed on a main shaft and a housing having a first portion and a second portion, the first and second portions adapted to receive the shaft assembly and enclose the shaft assembly therebetween, wherein the shaft assembly is rotatably disposed within the housing, and wherein at least one of the first portion and the second portion includes a shaft assembly retention feature for receiving the thrust disk to regulate a motion of the shaft assembly.
    Type: Application
    Filed: August 11, 2009
    Publication date: February 17, 2011
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Thomas Wollstadt, Grant William Brady, Gary L. Vilieneuve
  • FUEL CELL AIR HUMIDIFIER
    Publication number: 20070210463
    Abstract: An air humidifier is disclosed, the air humidifier including a caseless humidification module, wherein sealing properties of the humidification module are optimized.
    Type: Application
    Filed: March 7, 2007
    Publication date: September 13, 2007
    Inventors: Christian Koenig, Thomas Wollstadt, Thomas Hild, Rocco Schoene