Patents by Inventor Rene Guyonnet

Rene Guyonnet 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 treating wood by impregnation
    Patent number: 6248402
    Abstract: A method for treating wood in which the wood to be treated is placed in a chamber in which a vacuum is produced, where the chamber is filled with a hardening product, in particular a monomer, so as to impregnate the wood by causing the product to penetrate the space between its fibers, where the product is hardened, in particular by polymerization. This method is characterized in that the wood impregnating operation is preceded by a step of controlled thermal treatment.
    Type: Grant
    Filed: April 28, 1999
    Date of Patent: June 19, 2001
    Assignee: NOW - New Option Wood
    Inventors: René Guyonnet, Pierre Gohar
  • Method for treating wood at the glass transition temperature thereof
    Patent number: 5992043
    Abstract: A wood treatment method wherein a piece of wood to be treated is heat treated at high temperature for a predetermined time. According to the method, the piece of wood is heated to its glass transition temperature (Tg) prior to the heat treatment, and maintained thereat until the whole of the piece of wood has reached the glass transition temperature (Tg).
    Type: Grant
    Filed: March 23, 1998
    Date of Patent: November 30, 1999
    Assignee: N O W (New Option Wood)
    Inventor: Rene Guyonnet
  • Wood curing method
    Patent number: 5901463
    Abstract: A method for heat-treating wood, including at least one step of maintaining the wood to be treated at a predetermined temperature in a treatment chamber in order to destroy at least partially the hemicellulose of the wood. The method comprises monitoring the current amount of at least one of the gases given off during hemicellulose decomposition throughout the treatment step, and stopping the treatment step once the amount begins to reach a substantially constant value.
    Type: Grant
    Filed: March 23, 1998
    Date of Patent: May 11, 1999
    Assignee: N O W (New Option Wood)--societe anonyme
    Inventor: Rene Guyonnet