Patents by Inventor Norio Usui

Norio Usui 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).

  • Apparatus for automatically stopping operation of cutting machine
    Patent number: 5002440
    Abstract: In a cutting machine having a spindle drive motor, a die head which holds at least one cutting tool, and an automatic tool retracting means on the die head for detecting the completion of the cutting operation of a pipe to be cut by the cutting tool to automatically retract the cutting tool to its inoperative position, an automatic operation stopping apparatus including a detecting unit for detecting the operation of the automatic tool retracting unit and a switch for automatically breaking the electrical connection of the spindle drive motor in response to the detection by the detecting unit.
    Type: Grant
    Filed: January 17, 1989
    Date of Patent: March 26, 1991
    Assignee: Rex Industries Co., Ltd.
    Inventors: Eiki Tamaoki, Makoto Sakaguchi, Norio Usui