Patents by Inventor Charles James Perrault

Charles James Perrault 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).

  • Heater with heat resistant anti-oxidant coating on interior surfaces
    Patent number: 6769424
    Abstract: A heater for burning fuel having a hollow enclosure with an air inlet, and a combustion gas outlet. The enclosure has an exterior heat exchange wall preferably directly exposed to ambient air and an interior surface defining a combustion chamber. The enclosure has a body with front and rear openings into which are fitted a front panel and a rear panel defining joints therebetween. The interior surface of the enclosure is coated and joints are sealed with heat resistant anti-oxidant material, for example: porcelain enamel, having a co-efficient of thermal expansion not substantially greater than the co-efficient of thermal expansion of the enclosure.
    Type: Grant
    Filed: February 3, 2003
    Date of Patent: August 3, 2004
    Inventor: Charles James Perrault
  • Heater with heat resistant anti-oxidant coating on interior surfaces
    Publication number: 20030111071
    Abstract: A heater for burning fuel having a hollow enclosure with an air inlet, and a combustion gas outlet. The enclosure has an exterior heat exchange wall preferably directly exposed to ambient air and an interior surface defining a combustion chamber. The enclosure has a body with front and rear openings into which are fitted a front panel and a rear panel defining joints therebetween. The interior surface of the enclosure is coated and joints are sealed with heat resistant anti-oxidant material, for example: porcelain enamel, having a co-efficient of thermal expansion not substantially greater than the co-efficient of thermal expansion of the enclosure.
    Type: Application
    Filed: February 3, 2003
    Publication date: June 19, 2003
    Inventor: Charles James Perrault