Patents by Inventor William J. Crecelius

William J. Crecelius 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).

  • Lubrication flow control mechanism and method
    Patent number: 7748499
    Abstract: A lubrication flow control mechanism for a power transmission includes a bearing member and a spring biasing the bearing member in a direction. The bearing member and the spring cooperate to sufficiently restrict flow past the bearing to cause increased fluid flow to a lubrication-requiring member located downstream of the bearing. A method of limiting lubrication flow in a transmission is also provided.
    Type: Grant
    Filed: May 18, 2005
    Date of Patent: July 6, 2010
    Assignee: GM Global Technology Operations, Inc.
    Inventors: Ted T. Selever, William J. Crecelius
  • Transfer gear assembly for transmission
    Patent number: 6708578
    Abstract: A transfer gear assembly includes a transfer gear rotatably supported directly by a tapered roller bearing and thrust bearing. A tapered snap ring is positioned in a circumferential groove on a hub to provide a preload on the tapered roller bearing and thrust bearing. The tapered roller bearing and thrust bearing each may include only a single race.
    Type: Grant
    Filed: March 7, 2002
    Date of Patent: March 23, 2004
    Assignee: General Motors Corporation
    Inventors: Boris Iosifovich Burgman, William J. Crecelius
  • Transfer gear assembly for transmission
    Publication number: 20030167869
    Abstract: A transfer gear assembly includes a transfer gear rotatably supported directly by a tapered roller bearing and thrust bearing. A tapered snap ring is positioned in a circumferential groove on a hub to provide a preload on the tapered roller bearing and thrust bearing. The tapered roller bearing and thrust bearing each may include only a single race.
    Type: Application
    Filed: March 7, 2002
    Publication date: September 11, 2003
    Inventors: Boris Iosifovich Burgman, William J. Crecelius