Patents by Inventor Akio Uratani

Akio Uratani 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).

  • Hermetic compressor
    Patent number: 8021125
    Abstract: A hermetic compressor includes a housing accommodating a motor and a compressing mechanism driven by the motor, refrigerating machine oil, which is pooled in the housing, for lubricating the compressing mechanism, refrigerant gas sealed into the housing and to be refrigerant forming a refrigerating cycle, and an oil surface sensor including a thermistor having a given length. A part of the oil surface sensor is impregnated into the refrigerating machine oil, and the sensor senses a temperature immediately after energizing the thermistor and a rate of change in temperature onward, so that a position of an oil surface is detected.
    Type: Grant
    Filed: July 19, 2005
    Date of Patent: September 20, 2011
    Assignee: Panasonic Corporation
    Inventor: Akio Uratani
  • Hermetic compressor
    Patent number: 7568894
    Abstract: A hermetic compressor includes a housing which accommodates a motor and a compressing mechanism, an oil surface sensor mounted to a side wall of the housing, and refrigerating machine oil. The oil surface sensor is integrally formed of a detector for detecting a position of the oil surface of the refrigerating machine oil and a hermetic terminal. The hermetic terminal is placed at an end of a cylindrical tube having a smaller diameter than that of the housing, and the detector of the oil surface sensor is disposed inside the cylindrical tube.
    Type: Grant
    Filed: July 13, 2005
    Date of Patent: August 4, 2009
    Assignee: Panasonic Corporation
    Inventor: Akio Uratani
  • Hermetic compressor
    Publication number: 20060018763
    Abstract: A hermetic compressor includes a housing accommodating a motor and a compressing mechanism driven by the motor, refrigerating machine oil, which is pooled in the housing, for lubricating the compressing mechanism, refrigerant gas sealed into the housing and to be refrigerant forming a refrigerating cycle, and an oil surface sensor including a thermistor having a given length. A part of the oil surface sensor is impregnated into the refrigerating machine oil, and the sensor senses a temperature immediately after energizing the thermistor and a rate of change in temperature onward, so that a position of an oil surface is detected.
    Type: Application
    Filed: July 19, 2005
    Publication date: January 26, 2006
    Inventor: Akio Uratani
  • Hermetic compressor
    Publication number: 20060013697
    Abstract: A hermetic compressor includes a housing which accommodates a motor and a compressing mechanism, an oil surface sensor mounted to a side wall of the housing, and refrigerating machine oil. The oil surface sensor is integrally formed of a detector for detecting a position of the oil surface of the refrigerating machine oil and a hermetic terminal. The hermetic terminal is placed at an end of a cylindrical tube having a smaller diameter than that of the housing, and the detector of the oil surface sensor is disposed inside the cylindrical tube.
    Type: Application
    Filed: July 13, 2005
    Publication date: January 19, 2006
    Inventor: Akio Uratani