Patents by Inventor Clifford D. Hyatt

Clifford D. Hyatt 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).

  • Ceramic guide block and method of manufacture
    Patent number: 6605249
    Abstract: A guide block is provided for supporting a blade within a saw, such as a band saw, the guide block being formed from a ceramic material. A ceramic material is provided in powder form initially and is pressed into a billet of compressed ceramic powder. This billet of compressed ceramic powder is machined into a desired shape for the guide block but oversized in all of its dimensions by an oversized percent similar to an amount of shrinkage experienced by that ceramic material upon firing into a final hardened state. The machined compressed powder billet forms a pre-firing guide block which is fired at sufficient temperature and for sufficient duration so that it achieves its final hardened state as a ceramic guide block having dimensions precisely matching those of a prior non-ceramic guide block being replaced. The ceramic guide block can then be substituted into the saw for use in supporting the saw blade.
    Type: Grant
    Filed: March 26, 2001
    Date of Patent: August 12, 2003
    Inventors: Clifford D. Hyatt, Nicholas Osa
  • Ceramic guide block and method of manufacture
    Publication number: 20010047710
    Abstract: A guide block is provided for supporting a blade within a saw, such as a band saw, the guide block being formed from a ceramic material. A ceramic material is provided in powder form initially and is pressed into a billet of compressed ceramic powder. This billet of compressed ceramic powder is machined into a desired shape for the guide block but oversized in all of its dimensions by an oversized percent similar to an amount of shrinkage experienced by that ceramic material upon firing into a final hardened state. The machined compressed powder billet forms a pre-firing guide block which is fired at sufficient temperature and for sufficient duration so that it achieves its final hardened state as a ceramic guide block having dimensions precisely matching those of a prior non-ceramic guide block being replaced. The ceramic guide block can then be substituted into the saw for use in supporting the saw blade.
    Type: Application
    Filed: March 26, 2001
    Publication date: December 6, 2001
    Inventors: Clifford D. Hyatt, Nicholas Osa
  • Portable log peeling apparatus having a draw knife
    Patent number: 4595041
    Abstract: Portable apparatus for peeling logs has a powered draw knife mounted on a frame. The draw knife is swivably mounted on a cutter fork attached to a cutter rod, which is slidably mounted in a hydraulically or pneumatically powered cylinder. A cutter cradle attached to a slide bar on the frame allows an operator to optimally position the draw knife for each stroke. The frame is clamped to the log by a hydraulically or pneumatically powered clamp. The controls for operation of the draw knife are interlocked with the clamp controls for safety.
    Type: Grant
    Filed: July 30, 1984
    Date of Patent: June 17, 1986
    Assignee: Robert A. Fox
    Inventors: Robert A. Fox, Clifford D. Hyatt