Patents by Inventor James D. Spurgeon

James D. Spurgeon 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).

  • Bellows type mechanical seal
    Patent number: 6962339
    Abstract: A sealing system for sealing one end of a rotating shaft from fluids. The sealing system includes a resilient bellows element connected at each end to a thrust plate. The bellows acts like a compression spring forcing the thrust plates against respective sealing elements and thereby forming two dynamic seals around the shaft. Each of the dynamic seals alternately rotate with the shaft, depending upon the respective forces of friction acting on each.
    Type: Grant
    Filed: December 7, 2000
    Date of Patent: November 8, 2005
    Assignee: Infinity Manufacturing, Inc.
    Inventor: James D. Spurgeon