Patents by Inventor Donald T. Philippar

Donald T. Philippar 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: 4047298
    Abstract: An improved and simplified combination sheath and rigid handle for small, elongate tools such as knife blades, saws, small chisels and the like is disclosed herein. The structure of the invention is combined with a tool such as a knife blade having a butt end which is provided with a pair of side-by-side hinge elements having axes which are disposed transversely of the longitudinal center line of the knife blade or other tool. Swingably connected to such hinge elements are a pair of cooperating sheaths and handle members such as elongate bars or plates of somewhat greater length than the knife blade or tool, and of width greater than the width of the tool for protecting the same in one of the operative positions of the device.
    Type: Grant
    Filed: July 1, 1976
    Date of Patent: September 13, 1977
    Inventor: Donald T. Philippar