Patents by Inventor William Richard Sym

William Richard Sym 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).

  • Inflatable seals
    Patent number: 6315295
    Abstract: An inflatable seal system in a tool having opposed parts which are relatively movable together with the inflatable seal system therebetween. The inflatable seal system comprising a longitudinally extending seal cavity and a seal extending longitudinally along the seal cavity. The seal comprises an inflatable portion and an abutment portion for sealingly abutting against an opposing surface, wherein the inflatable portion remains in the seal cavity when the seal is deflated.
    Type: Grant
    Filed: January 24, 2000
    Date of Patent: November 13, 2001
    Assignee: Magna International Investments (Barbados) Inc.
    Inventor: William Richard Sym
  • Inflatable seals
    Patent number: 6029977
    Abstract: An inflatable seal system in a tool having opposed parts which are relatively moveable together with the inflatable seal system therebetween. The inflatable seal system comprising a longitudinally extending seal cavity and a seal extending longitudinally along the seal cavity. The seal comprises an inflatable portion and an abutment portion for sealingly abutting against an opposing surface, wherein the inflatable portion remains in the seal cavity when the seal is deflated.
    Type: Grant
    Filed: March 4, 1997
    Date of Patent: February 29, 2000
    Assignee: Magna International Investments (Barbados) Inc.
    Inventor: William Richard Sym