Patents by Inventor Willem J. Schreuders

Willem J. Schreuders 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 and device for cutting gas concrete
    Patent number: 5092209
    Abstract: In order to decrease shocks and vibrations to plastic gas concrete during cutting thereof with wires, the cutting wires are guided and driven separately from one another in a cutting frame.
    Type: Grant
    Filed: April 30, 1990
    Date of Patent: March 3, 1992
    Assignee: Durox Gasbeton B.V.
    Inventor: Willem J. Schreuders
  • Device for cutting gas concrete
    Patent number: 4955272
    Abstract: In order to decrease shocks and vibrations to plastic gas concrete during cutting thereof with wires, the cutting wires are guided and driven separately from one another in a cutting frame.
    Type: Grant
    Filed: January 28, 1988
    Date of Patent: September 11, 1990
    Assignee: Durox Gasbeton B.V.
    Inventor: Willem J. Schreuders