Patents by Inventor Robert W. Ryerson

Robert W. Ryerson 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).

  • Earth digging bucket tooth construction having a nose with increased section modulus
    Patent number: 4233761
    Abstract: An earth digging bucket toothpoint construction with a tooth base having a tooth holder removably attached thereto and a toothpoint removably secured to the tooth holder in which an internal rib structure on noses of the interfitting parts with mating grooves in the interfitting parts of a particular specified size increases the section modulus against bending stresses to increase the bending strength of the noses against breakage.
    Type: Grant
    Filed: December 1, 1978
    Date of Patent: November 18, 1980
    Assignee: Page Engineering Company
    Inventor: Robert W. Ryerson