Patents by Inventor Ray Paul Chamberland

Ray Paul Chamberland 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).

  • Recessed furnace lance purge gas system
    Patent number: 5931654
    Abstract: A system and method for protecting a nozzle that injects a high velocity main gas into a furnace or combustion zone. The nozzle is located in a passage recessed from the exit port opening of the passage which communicates with the combustion zone. Purge gas is passed into the passage upstream of the nozzle. The volume of the purge gas exceeds 50% of the total volume of the main gas and purge gas and the purge gas has a velocity of at least 100 ft/sec thereby preventing furnace gases from entering the passage and attacking the nozzle.
    Type: Grant
    Filed: June 30, 1997
    Date of Patent: August 3, 1999
    Assignee: Praxair Technology, Inc.
    Inventor: Ray Paul Chamberland
  • Energy recovery in oxygen-fired glass melting furnaces
    Patent number: 5807418
    Abstract: A method for improving the energy efficiency of oxygen-fired glass melting furnaces wherein heat from hot flue gases from the melting furnace is used to heat all or part of the combustion oxidant and thereafter to preheat at least a portion of the glass forming materials to be melted.
    Type: Grant
    Filed: May 21, 1996
    Date of Patent: September 15, 1998
    Assignee: Praxair Technology, Inc.
    Inventors: Ray Paul Chamberland, Hisashi Kobayashi