Patents by Inventor Tommy M. Tetreault

Tommy M. Tetreault 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).

  • Liquid oxygen production
    Patent number: 6212904
    Abstract: An apparatus for liquefying and storing a gas is provided. The apparatus is adapted to liquify relatively small quantities of gas, and to do so in a residence or place of business. The apparatus generally includes a cryocooler, a heat transfer assembly, and an insulated subsystem. Liquid condensate produced by the apparatus is stored in an insulated dewar. The method of the present invention includes the liquification of air or an enriched gas on a small scale in a residence or place of business. The method and apparatus of the invention are particularly well suited for providing liquified oxygen for use by a patient on oxygen therapy in the patient's residence.
    Type: Grant
    Filed: November 1, 1999
    Date of Patent: April 10, 2001
    Assignee: In-X Corporation
    Inventors: Ivan A. Arkharov, Alexey M. Arkharov, Leslie C. Kun, Tommy M. Tetreault
  • Method for forming a porous aluminum layer
    Patent number: 4358485
    Abstract: A method for forming a porous aluminum surface on an aluminum substrate using a potassium fluoaluminate brazing flux in critical weight ratio of 0.05 to 0.6 with an aluminum powder matrix component.
    Type: Grant
    Filed: March 17, 1980
    Date of Patent: November 9, 1982
    Assignee: Union Carbide Corporation
    Inventors: James W. Kern, Tommy M. Tetreault