Patents by Inventor Taro Kasuya

Taro Kasuya 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).

  • Apparatus and method of measuring fluctuations of excavated mud amount in a slurry line
    Patent number: 3946605
    Abstract: An apparatus and method for measuring fluctuations in amount of soil in slurry or soil-containing fluid line. Each system of feeding the slurry typically to tunneling face and draining it therefrom in the slurry line is provided with gamma-ray densimeter and electromagnetic flow-meter to obtain respective amounts of soil only (dry-soil amounts) in the slurry flowing through each of said systems from respective outputs of these meters in each system, so that actually excavated amount through ground layer of a shielded excavator at the tunneling face can be measured by the difference between the respective dry-soil amounts. The excavator will be advanced depending on this measured amount.
    Type: Grant
    Filed: November 7, 1974
    Date of Patent: March 30, 1976
    Assignee: Tekken Kensetu Co. Ltd.
    Inventors: Hironobu Yamazaki, Reizo Kubota, Yoshiaki Uchida, Taro Kasuya, Norikazu Seki