Patents by Inventor Kanji Fudono

Kanji Fudono 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).

  • Controller of refrigerating plant
    Patent number: 5067556
    Abstract: Control means in a controller for a refrigerating plant for turning on an electric heater (7) adjacent the evaporator (3) when the degree of superheat (27) of the refrigerant in the line between the evaporator (3) and compressor (1) exceeds its upper limit set value (31, 32, 33, 34), and turns off the electric heater (7) when the degree of superheat falls below its lower limit set value (31, 32, 33, 34).
    Type: Grant
    Filed: October 11, 1990
    Date of Patent: November 26, 1991
    Assignee: Mitsubishi Jukogyo Kabushiki Kaisha
    Inventors: Kanji Fudono, Toshimasa Takahashi, Hiroshi Ogawa, Toshio Yamashita
  • Refrigerating apparatus
    Patent number: 5003786
    Abstract: A refrigerating apparatus is conventionally provided with an electric which is fed with an electric current to effect heating and defrosting operations, a defrosting control device including a defrosting timer and an evaporator outlet refrigerant temperature detector for controlling the electric current fed to the electric heater, and an overheating preventing temperature detector for preventing the occurrence of abnormal overheating by the electric heater. The refrigerating apparatus of the present invention can regularly effect defrosting even if any anomaly should arise in the evaporator outlet refrigerant temperature detector. Specifically, the overheating preventing temperature detector is connected to the defrosting control device, and a detection temperature signal from either the evaporator outlet refrigerant temperature detector of the overheating preventing temperature detector is used to commence and terminate defrosting.
    Type: Grant
    Filed: February 9, 1990
    Date of Patent: April 2, 1991
    Assignee: Mitsubishi Jukogyo Kabushiki Kaisha
    Inventors: Kanji Fudono, Hiroshi Ogawa, Toshimasa Takahashi, Toshio Yamashita
  • Refrigerator system for a container
    Patent number: 4998582
    Abstract: A known refrigerating system for a container is improved to include container wrong or abnormal condition diagnostic facilities. Such additional facilities include a container inside temperature detector, a container outside temperature detector, a control responsive to a wrong condition diagnosis instruction for operating an evaporator fan and an electric heater of the refrigerating system, and a wrong condition diagnostic device for diagnosing whether or not a wrong condition of the container is present on the basis of the temperatures detected by the respective temperature detectors after a predetermined period of operation of the evaporator fan and the electric heater.
    Type: Grant
    Filed: December 21, 1989
    Date of Patent: March 12, 1991
    Assignee: Mitsubishi Jukogyo Kabushiki Kaisha
    Inventors: Kanji Fudono, Hiroshi Ogawa, Toshimasa Takahashi, Toshio Yamashita