Patents by Inventor Kenneth D. Runyan

Kenneth D. Runyan 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).

  • Patent number: 4967460
    Abstract: A tool for the extraction of bushings, bearings or other similar objects pressed into blind holes.The preferred embodiment of the invention consists of a cylinder tube 1, with a blind head 2 attached, and sealed by blind head seal 5. The piston 3 is joined to the rod 4 which travels through the rod hole 12 and is sealed by the piston seal 6 in the inner diameter of cylinder tube 1.The blind hole bushing and bearing remover is used by installing the appropriate nose piece (ball type, bushing/bearing removal nose piece 8; or self-threading, tapered type, bushing/bearing removal nose piece 17) into the bushing or bearing to be removed. Pushing media (grease) is introduced under pressure, and travels through check valve (grease fitting) receptacle and linear hole 7, thus moving piston 3, and extending rod 4 through the appropriate nose piece.
    Type: Grant
    Filed: June 9, 1989
    Date of Patent: November 6, 1990
    Inventors: Kenneth D. Runyan, Jerry W. Nelson