Patents by Inventor Yoji Karasawa

Yoji Karasawa 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).

  • Solid-liquid separator with self-priming pump
    Patent number: 8512565
    Abstract: A solid-liquid separator prevents wear of a self-priming liquid pump connected to a cyclone mechanism and a solid-liquid mixture can be purified at low cost. The separator separates sludge in the liquid by a cyclone in a separation portion directly or indirectly connected to a suction of the upstream side of the pump. The separation portion has a first and second cyclones with the first cyclone disposed in said second cyclone coaxially. A tank disposed under the cyclones collects separated from the liquid.
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: August 20, 2013
    Assignee: World Chemical Co., Ltd
    Inventors: Yoji Mori, Yoji Karasawa, Yasuichi Haga, Koji Sakamoto
  • Solid-liquid separator with self-priming pump
    Publication number: 20110192771
    Abstract: The present invention is to provide a solid-liquid separator with self-priming pump with which wear of a self-priming liquid pump connected to a cyclone mechanism can be prevented and a solid-liquid mixture can be purified at a low cost without requiring a special arrangement (special material or special structure) for the pump.
    Type: Application
    Filed: January 25, 2011
    Publication date: August 11, 2011
    Inventors: Yoji Mori, Yoji Karasawa, Yasuichi Haga, Koji Sakamoto