Patents by Inventor Nobuyuki Shiratake

Nobuyuki Shiratake 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).

  • Scroll compressor with overload protection
    Patent number: 5690475
    Abstract: In a scroll compressor, an internal space of a sealed container is partitioned by a cylinder-shaped partition wall into a delivery chamber and a suction chamber including a driving motor, and a pressure relief valve is provided with the cylinder-shaped partition wall, and a thermal switch is disposed at the position to receive heat of the high-pressure coolant relieved from the pressure relief valve into the suction chamber, thereby, the pressure relief valve reduces pressure of coolant of the delivery chamber, and thermal switch is operated by the coolant from the pressure relief valve so as to stop the driving motor.
    Type: Grant
    Filed: September 4, 1996
    Date of Patent: November 25, 1997
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Sadayuki Yamada, Nobuyuki Shiratake, Hiroyuki Fukuhara, Shigeru Muramatsu