Patents by Inventor Dennis H. Iverson

Dennis H. Iverson 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).

  • Molded seal with inclined cross braces
    Patent number: 4685685
    Abstract: An annular sealing ring with a generally Y-shaped cross-section for sealing between a piston and the curved wall of a cylinder. The sealing ring includes a base and a pair of lips with sealing edges, the lips being spaced apart to form a cavity therebetween. Braces connect the lips a regular intervals, forming trapezoidal voids.
    Type: Grant
    Filed: December 16, 1986
    Date of Patent: August 11, 1987
    Assignee: Cyl - Pak, Inc.
    Inventor: Dennis H. Iverson
  • Machinery seal
    Patent number: 4193606
    Abstract: There is disclosed a U-cup type machinery seal for circumferential placement about a rotating and/or reciprocating member. The seal comprises a boot having a generally V-shaped groove therein and an expander of generally triangular cross-section in the groove for biasing radially positioned lips into sealing engagement with the machinery to be sealed.
    Type: Grant
    Filed: June 15, 1978
    Date of Patent: March 18, 1980
    Inventor: Dennis H. Iverson