Patents Assigned to Kensetsu Kikai Chosa Kabushiki Kaisha
  • Vibrator equipped grab bucket
    Patent number: 4084336
    Abstract: A grab bucket for a grab dredger having a vibrator of waterproof construction mounted on the interior of a bucket shell for causing forced vibration of the grab bucket.
    Type: Grant
    Filed: July 16, 1976
    Date of Patent: April 18, 1978
    Assignee: Kensetsu Kikai Chosa Kabushiki Kaisha
    Inventors: Yutaka Mizutani, Takashi Aoki