Patents by Inventor Ralph L. Walker

Ralph L. Walker 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).

  • Cutting tool bit assembly
    Patent number: 5318351
    Abstract: A cutting tool assembly consisting of a cutting bit and a mounting block assembly for fixing the bit on a rotating drum or the like which will retain the bit in the mounting block at very high drum rotational speeds, which will accommodate high impact force and minimize the resulting wear experienced by the bit at high drum rotational speeds, and which permits quick and simple replacement of the bit when required.
    Type: Grant
    Filed: December 1, 1992
    Date of Patent: June 7, 1994
    Inventor: Ralph L. Walker