Patents by Inventor Jon A. Hass

Jon A. Hass 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).

  • Method for making a pneumatic ground piercing tool
    Patent number: 5440797
    Abstract: In a method for making a self-propelled impact boring tool, the tool body is formed by swaging a steel tube to form the tapered nose of the tool. This results in less wasted steel as compared to conventional machining of a solid steel bar to form the body, which is the largest single part of the tool. The tool body may then be fitted with a tool anvil of slightly different dimensions than the forming anvil used during swaging to provide an interference fit.
    Type: Grant
    Filed: September 29, 1994
    Date of Patent: August 15, 1995
    Assignee: Earth Tool Corporation
    Inventors: Steven W. Wentworth, Robert F. Crane, Jon A. Hass