Patents by Inventor Haruo Hamazaki

Haruo Hamazaki 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).

  • Patent number: 4668385
    Abstract: A filter press equipped with a filter cloth hanging rod detecting arrangement which includes a support beam which is so arranged between the front and rear stands and above the hanging rods as to suspend the shatter members by means of corresponding brackets. The brackets respectively have longitudinal apertures extending vertically or shafts extending horizontally. Meanwhile the shatter members respectively have shafts inserted in the longitudinal apertures of the brackets or apertures in which the shafts of the brackets are inserted. Accordingly the shatter members may move upwardly and downwardly according the vertical movement of the hanging rods and also swing in an imaginary vertical plane parallel to the support beam following to the horizontal movement of the hanging rods.
    Type: Grant
    Filed: August 28, 1985
    Date of Patent: May 26, 1987
    Assignee: Kurita Machinery Manufacturing Company Limited
    Inventor: Haruo Hamazaki
  • Patent number: 4553558
    Abstract: A cleaning device for a filter press wherein a spray tube for cleaning filter cloths of the filter press is moved in alternate directions during cleaning in a vertically downward position depending from a second carrier movably supported on a first carrier and cleaning liquor is sprayed through spray nozzles provided in the spray tube. When a cleaning cycle is completed, the spray tube is returned by a rack rod and pinion to a slanted waiting position above the filter plates.
    Type: Grant
    Filed: February 28, 1984
    Date of Patent: November 19, 1985
    Assignee: Kurita Machinery Manufacturing Company Limited
    Inventors: Haruo Hamazaki, Makinoda Mitsugi