Patents by Inventor Wittenzellner Elmar

Wittenzellner Elmar 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 and method for machining workpieces by flushing working liquid to the tool-and-workpiece interface
    Patent number: 6095899
    Abstract: Disclosed are improved apparatus and method for effecting a required machining on workpieces with working liquid flushing to the tool-and-workpiece contacting place. Gas such as air is ejected to the tool-and-workpiece contacting place, thereby making the working liquid to forcedly invade into the tool-and-workpiece interface. Thus, cooling effect is enhanced to maximum while saving the quantity of working liquid, still assuring that the products of comparable or even higher quality are provided.
    Type: Grant
    Filed: July 29, 1998
    Date of Patent: August 1, 2000
    Assignee: Disco Corporation
    Inventors: Wittenzellner Elmar, Kenichi Sekiya