Patents by Inventor John E. Waldschmidt

John E. Waldschmidt 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: 6694765
    Abstract: A transport temperature control apparatus includes a refrigeration circuit and a heat exchanger having an air inlet and an air outlet in fluid communication with a conditioned space. An evaporator coil extends through the heat exchanger between the inlet and air outlet and is fluidly connected to the refrigeration circuit. A divider defines a first portion of the evaporator coil and a second portion of the evaporator coil. A first fan is housed in the heat exchanger and is adjacent the first portion. The first fan has a first operating condition for directing air across the evaporator coil in a first direction and a first non-operating condition. A second fan is housed in the heat exchanger and is adjacent the second portion. The second fan has a second operating condition for directing air across the evaporator coil in a second direction and a second non-operating condition.
    Type: Grant
    Filed: July 30, 2002
    Date of Patent: February 24, 2004
    Assignee: Thermo King Corporation
    Inventors: John E. Waldschmidt, John J. Shaw, David J. VanderWoude
  • Publication number: 20040020228
    Abstract: A transport temperature control apparatus includes a refrigeration circuit and a heat exchanger having an air inlet and an air outlet in fluid communication with a conditioned space. An evaporator coil extends through the heat exchanger between the inlet and air outlet and is fluidly connected to the refrigeration circuit. A divider defines a first portion of the evaporator coil and a second portion of the evaporator coil. A first fan is housed in the heat exchanger and is adjacent the first portion. The first fan has a first operating condition for directing air across the evaporator coil in a first direction and a first non-operating condition. A second fan is housed in the heat exchanger and is adjacent the second portion. The second fan has a second operating condition for directing air across the evaporator coil in a second direction and a second non-operating condition.
    Type: Application
    Filed: July 30, 2002
    Publication date: February 5, 2004
    Applicant: Thermo King Corporation
    Inventors: John E. Waldschmidt, John J. Shaw, David J. VanderWoude
  • Patent number: 5105096
    Abstract: A transport refrigeration system including a refrigerant compressor which is alternatively driven by an internal combustion engine or an electric induction motor. The transport refrigeration system achieves and maintains a predetermined set point temperature in a served space by heating and cooling cycles. When additional heat is required during a heating cycle while the internal combustion engine is driving the compressor, capacitors are connected across the induction motor, to cause the motor to function as an induction generator and build up an output voltage. The output voltage is monitored, and when it is sufficient to sustain a load, resistors located to aid the heating cycle are connected to receive the output voltage.
    Type: Grant
    Filed: May 17, 1989
    Date of Patent: April 14, 1992
    Assignee: Thermo King Corporation
    Inventors: John E. Waldschmidt, Leland L. Howland
  • Patent number: 4372635
    Abstract: A multiple connector plug removal device includes two U-shaped levers having opposite arm portions 14 and 16 located on opposite sides of a frame 20 encompassing the plug and having the levers secured and fulcrumed to the frame 20 at points 28 and 30 so that as the levers are moved together by swinging the handle portions 18 thereof together the outer distal ends of the levers force pusher members 56 in a direction to separate the plugs. The arms on each side of the plug are secured together at 46 to compel the concurrent movement of the levers.
    Type: Grant
    Filed: March 5, 1981
    Date of Patent: February 8, 1983
    Assignee: Thermo King Corporation
    Inventor: John E. Waldschmidt