Patents by Inventor Oscar R. Olson

Oscar R. Olson 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).

  • Tool for removing valve lifters
    Patent number: 4026002
    Abstract: A hydraulic lifter extracting tool including a gripping assembly made up of cylindrical sectors dimensioned to engage the lifter to be extracted not only axially but radially, the quadrants having a conical bore for engagement by a suitably configured actuator point.
    Type: Grant
    Filed: June 23, 1976
    Date of Patent: May 31, 1977
    Inventor: Oscar R. Olson