Patents by Inventor Ralph Norton

Ralph Norton 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).

  • Drilling aid
    Patent number: 5163791
    Abstract: A pin locator device for use in positioning a drill relative to an already drilled hole in a workpiece for the purpose of drilling a line of equally interspaced holes in the workpiece is in the form of a spring plunger which can be depressed into the already drilled hole and released when the workpiece is properly situated for the next drilling operation.
    Type: Grant
    Filed: September 26, 1991
    Date of Patent: November 17, 1992
    Inventor: Ralph Norton