Patents by Inventor Masaki Matsukuma

Masaki Matsukuma 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).

  • Oil-cooled compressor and method of operating same
    Patent number: 5171130
    Abstract: An oil cooled compressor includes a compressor body having a low pressure suction passage and a high pressure discharge passage. An oil tank is mounted to the discharge passage such that oil and drain water separated from a compressed gas in the discharge passage collect in the oil tank with water at a lowermost part of the oil tank. A drain water passage separate from a compressed gas discharge passage and an oil discharge passage, connects the lowermost part of the oil tank with a portion of the compressor body which is substantially at the low pressure. Drain water is thereby evaporated from the oil tank and returned to the compressor body.
    Type: Grant
    Filed: July 17, 1991
    Date of Patent: December 15, 1992
    Assignee: Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Terumasa Kume, Kazuo Kubo, Masaki Matsukuma, Tsutomu Horii, Yoshitomo Yamamoto