Patents by Inventor Douglas B Guthrie

Douglas B Guthrie 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).

  • Friction facing material for use in a friction environment
    Patent number: 7168544
    Abstract: A facing material for a power transmission—absorption assembly is shown and described. In one embodiment, the facing material includes a plurality of first channels having a first, deep depth and a plurality of second channels having a second, shallow depth. One or more of the plurality of second channels may be superimposed or in fluid communication with the first channels to enable fluid to flow across the surface 12c and through the first channel to achieve the desired fluid flow characteristics. The second channels may be defined by a connector that has varying shapes to further facilitate the desired fluid flow characteristics. The material may be used in a power transmission—absorption environment such as on a blocker synchronizer ring, clutch plate or the like.
    Type: Grant
    Filed: October 2, 2003
    Date of Patent: January 30, 2007
    Assignee: Sulzer Euroflamm US Inc.
    Inventors: Douglas B. Guthrie, Terry E. Nels, Jonathan M. Rich, Eric A. Schueler
  • Friction facing method for use in a friction environment
    Patent number: 7069636
    Abstract: A facing material for a power transmission-absorption assembly is shown and described. In one embodiment, the facing material includes a plurality of first channels having a first, deep depth and a plurality of second channels having a second, shallow depth. One or more of the plurality of second channels may be superimposed or in fluid communication with the first channels to enable fluid to flow across the surface 12c and through the first channel to achieve the desired fluid flow characteristics. The second channels may be defined by a connector that has varying shapes to further facilitate the desired fluid flow characteristics. The material may be used in a power transmission-absorption environment such as on a blocker synchronizer ring, clutch plate or the like.
    Type: Grant
    Filed: October 2, 2003
    Date of Patent: July 4, 2006
    Assignee: Euroflamm Select Inc.
    Inventors: Douglas B Guthrie, Terry E Nels, Jonathan M Rich, Eric A Schueler