Patents by Inventor Kazuo Kamezaki

Kazuo Kamezaki 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).

  • Vacuum filtration apparatus with horizontal filter-like conveyor
    Patent number: 5221472
    Abstract: A vacuum filtration apparatus is provided with one or more vacuum chambers fixedly secured at predetermined positions. The interior of the vacuum chamber alternates between a partial vacuum and atmospheric pressure. An endless filter belt has a horizontal section disposed above the vacuum chamber. A slurry is fed from one or more slurry feeders onto the horizontal section of the endless filter belt so as to create a cake of solid particles. Water is fed from one or more water feeders onto the cake to wash the solid particles on the endless filter belt. The endless filter belt intermittently advances by a predetermined length. When the endless filter belt is stopped, the vacuum chamber is under a vacuum so as to draw the liquid constituent from the slurry, thereby obtaining a purified cake of the solid particles. The vacuum filtration apparatus is provided with a coupling bar at which the slurry feeder and the water feeder is attached.
    Type: Grant
    Filed: June 13, 1991
    Date of Patent: June 22, 1993
    Assignee: Tsukishima Kikai Co., Ltd.
    Inventors: Michio Ikeda, Kazuo Kamezaki, Yoshihiko Nakazawa, Shuji Iwasaki, Masuhiro Sato, Minoru Morita