Patents by Inventor Rolla J. Boyer

Rolla J. Boyer 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).

  • Method of making improved spring seal
    Patent number: 4261192
    Abstract: A spring having an enlarged diameter base mountable in the heel of a seal casing to enable flared arms extending forwardly from the base to freely exert by cantilever action an outwardly directed spring bias against the casing while the spring is retained by its base in the casing. A method of making a continuous spring from a single strip of metal to form opposing flared arms extending from an enlarged concave base.
    Type: Grant
    Filed: December 7, 1978
    Date of Patent: April 14, 1981
    Inventors: Robert Janian, Rolla J. Boyer
  • Spring seal
    Patent number: 4133542
    Abstract: A seal comprising a spring having an enlarged diameter base mounted in the heel of a seal casing to enable flared arms extending forwardly from the base to freely exert by cantilever action an outwardly directed spring bias against the casing while the spring is retained by its base in the casing.
    Type: Grant
    Filed: August 31, 1976
    Date of Patent: January 9, 1979
    Inventors: Robert Janian, Rolla J. Boyer