Patents by Inventor Myron Johnson

Myron Johnson 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).

  • Wire guide for electric discharge machine
    Patent number: 4782203
    Abstract: A wire guide directs a wire electrode from a refeed mechanism in an electrical discharge machine EDM to a workpiece. The wire guide has ceramic inserts defining a precision guide slot for the electrode and wherein one of the inserts is carried by a deflectable member spring biased to damp the electrode so as to maintain concentricity of holes formed by the electrode and thereby closely control the hole diameter.
    Type: Grant
    Filed: April 16, 1987
    Date of Patent: November 1, 1988
    Assignee: Raycon Textron Inc.
    Inventors: John M. Check, Myron Johnson, George Barbulescu