Patents by Inventor Raymond J. Dufour

Raymond J. Dufour 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).

  • Patent number: 4180126
    Abstract: Efficiency of an open-cycle air conditioning apparatus and method for heating and cooling is improved and the economy of external power is increased both with respect to cost and energy consumption by providing a combination of a primary heater and a secondary heater for heating the regeneration stream for regenerating the desiccant means in the air conditioning apparatus. The thermal source for the primary heater may utilize waste heat or solar energy which is transferred to a solid phase thermal storage means by a gaseous phase heat exchange medium. The thermal energy may be transferred from the thermal storage means to the regeneration stream of the open-cycle air conditioning apparatus either directly by passing the air stream over the solid phase thermal storage means or indirectly by passing liquid in an enclosed system through the solid phase thermal storage means and the regeneration stream.
    Type: Grant
    Filed: March 21, 1978
    Date of Patent: December 25, 1979
    Assignee: Gas Developments Corporation
    Inventors: William F. Rush, Jaroslav Wurm, Raymond J. Dufour
  • Patent number: 4169362
    Abstract: A solid adsorption air conditioning apparatus for cooling and heating which is compact in size and particularly adapted to low capacity and which may be at least partially solar powered and air cooled. The apparatus utilizes water vapor as refrigerant working within a hermetically sealed module. The hermetically sealed module has opposing thermally conductive walls which are internally coated with water vapor adsorbent material and thermally insulated from each other.
    Type: Grant
    Filed: July 3, 1978
    Date of Patent: October 2, 1979
    Assignee: Institute of Gas Technology
    Inventors: Sanford A. Weil, William F. Rush, Jaroslav Wurm, Raymond J. Dufour
  • Patent number: 4121432
    Abstract: A solid adsorption air conditioning apparatus and process for cooling and heating which is compact in size and particularly adapted to low capacity and which may be at least partially solar powered and air cooled. The apparatus and process utilizes water vapor as refrigerant working within a hermetically sealed module. The hermetically sealed module has opposing thermally conductive walls which are internally coated with water vapor adsorbent material and thermally insulated from each other.
    Type: Grant
    Filed: March 24, 1977
    Date of Patent: October 24, 1978
    Assignee: Institute of Gas Technology
    Inventors: Sanford A. Weil, William F. Rush, Jaroslav Wurm, Raymond J. Dufour
  • Patent number: 4113004
    Abstract: A process for open-cycle air conditioning which affords economy of external power both with respect to cost and energy consumption by providing a low-temperature heater and a high-temperature heater for regenerating the sensible heat exchanger and desiccant when the apparatus is used for cooling and the enthalpy exchanger when the apparatus is used for heating. The power source for the low-temperature heater can utilize solar energy, waste boiler heat, waste process heat, nuclear reactor heat and the like. The power source for the high-temperature heater can be an open flame burner or other conventional heater.
    Type: Grant
    Filed: November 3, 1976
    Date of Patent: September 12, 1978
    Assignee: Gas Developments Corporation
    Inventors: William F. Rush, Jaroslav Wurm, Raymond J. Dufour
  • Patent number: 4081024
    Abstract: Efficiency of an open-cycle air conditioning apparatus and method for heating and cooling is improved and the economy of external power is increased both with respect to cost and energy consumption by providing a combination of a primary heater and a secondary heater for heating the regeneration stream for regenerating the desiccant means in the air conditioning apparatus. The thermal source for the primary heater may utilize waste heat or solar energy which is transferred to a solid phase thermal storage means by a gaseous phase heat exchange medium. The thermal energy may be transferred from the thermal storage means to the regeneration stream of the open-cycle air conditioning apparatus either directly by passing the air stream over the solid phase thermal storage means or indirectly by passing liquid in an enclosed system through the solid phase thermal storage means and the regeneration stream.
    Type: Grant
    Filed: June 4, 1975
    Date of Patent: March 28, 1978
    Assignee: Gas Developments Corporation
    Inventors: William F. Rush, Jaroslav Wurm, Raymond J. Dufour
  • Patent number: 4014380
    Abstract: A process for open-cycle air conditioning which affords economy of external power both with respect to cost and energy consumption by providing a low-temperature heater and a high-temperature heater for regenerating the sensible heat exchanger and desiccant when the apparatus is used for cooling and the enthalpy exchanger when the apparatus is used for heating. The power source for the low-temperature heater can utilize solar energy, waste boiler heat, waste process heat, nuclear reactor heat and the like. The power source for the high-temperature heater can be an open flame burner or other conventional heater.
    Type: Grant
    Filed: November 4, 1974
    Date of Patent: March 29, 1977
    Assignee: Gas Developments Corporation
    Inventors: William F. Rush, Jaroslav Wurm, Raymond J. Dufour