Patents Assigned to Chiyoda Technical & Industrial Company Ltd.
  • Method and apparatus for setting pattern frame and press die in instant-release type molding machine for concrete product
    Patent number: 5002711
    Abstract: An instant-release type concrete molding machine manufactures a concrete product by interposing unitable attachment devices between a press die and a press, placing an attachment unit of a pattern frame within a molding region, introducing the pattern frame and the press die into the molding region in alignment with the press, moving the press and the press die toward each other and uniting them by the aforementioned attachment devices, and fixing the pattern frame by the attachment unit within the molding region.
    Type: Grant
    Filed: July 2, 1985
    Date of Patent: March 26, 1991
    Assignee: Chiyoda Technical & Industrial Company Ltd.
    Inventors: Eiji Iwama, Takateru Hatanaka