Patents by Inventor Larry Peiffer

Larry Peiffer 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: 6276161
    Abstract: A modular air conditioning system comprises a self-contained refrigeration power cell, a heat exchanger remotely located from the refrigeration power cell, and a low pressure refrigerant communication circuit operably coupling the refrigeration power cell to the heat exchanger. The refrigeration power cell comprises a compressor, a condenser, an expansion device, and an evaporator which are serially coupled to form a high pressure closed refrigeration circuit. A drive mechanism, such as an electric or hydraulic motor, or conventional belt, is coupled to the compressor. The low pressure refrigerant communication circuit thermally interfaces with the condenser to remove heat from the high pressure closed refrigeration circuit. Alternatively, this circuit thermally interfaces with the evaporator to remove heat from the low pressure refrigerant. This heat exchanger is adapted to mount in the cabin of an over-the-road or off-road vehicle.
    Type: Grant
    Filed: December 20, 1999
    Date of Patent: August 21, 2001
    Assignee: Bergstrom, Inc.
    Inventors: Larry Peiffer, Terry Zeigler, William G. Guo
  • Patent number: 6038877
    Abstract: A modular air conditioning system comprises a self-contained refrigeration power cell, a heat exchanger remotely located from the refrigeration power cell, and a low pressure refrigerant communication circuit operably coupling the refrigeration power cell to the heat exchanger. The refrigeration power cell comprises a compressor, a condenser, an expansion device, and an evaporator which are serially coupled to form a high pressure closed refrigeration circuit. A drive mechanism, such as an electric or hydraulic motor, or conventional belt, is coupled to the compressor. The low pressure refrigerant communication circuit thermally interfaces with the condenser to remove heat from the high pressure closed refrigeration circuit. Alternatively, this circuit thermally interfaces with the evaporator to remove heat from the low pressure refrigerant. This heat exchanger is adapted to mount in the cabin of an over-the-road or off-road vehicle.
    Type: Grant
    Filed: May 22, 1998
    Date of Patent: March 21, 2000
    Assignee: Bergstrom, Inc.
    Inventors: Larry Peiffer, Terry Zeigler, William G. Guo
  • Patent number: 5901572
    Abstract: An auxiliary heating and air conditioning system has an output for selectively delivering warm air and cool air to the passenger area of a motor vehicle. The auxiliary system includes a thermo-electric cooler, which is a solid state device having a hot side and a cold side. Heat exchangers are disposed in connection with the hot side and cold side of the thermo-electric cooler to facilitate the transfer of thermal energy away from each side of the thermo-electric cooler. Two fans are disposed in fluid communication with the first and second heat exchangers to transfer air across the exchangers and to the output for selectively heating and cooling the passenger area of the motor vehicle. Interposed between the first and second heat exchangers and the output, are first and second arrays of energy storage panels. Preferably, these panels contain phase change material which is charged during the operation of the motor vehicle to change phase and therefore store thermal energy.
    Type: Grant
    Filed: December 7, 1995
    Date of Patent: May 11, 1999
    Assignee: Rocky Research
    Inventors: Larry Peiffer, Terry Zeigler, William G. Guo