Patents by Inventor Zenkichi Kurokawa

Zenkichi Kurokawa 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).

  • Device for storing and retrieving articles in a shelf stack
    Patent number: 4509893
    Abstract: An article handling and pushing device is located on one side of a set of stacked shelves, is movable vertically, and includes a transfer shelf which can be brought to oppose any selected one of the stacked shelves by such vertical motion and also a push arm for moving articles from the transfer shelf away from the handling and pushing device onto the currently selected opposed one of the stacked shelves. An article pushing out device is located on the other side of the shelves, is also movable vertically, also can be brought to oppose any selected one of the stacked shelves by such vertical motion, and includes an air cylinder for pushing articles off from the currently selected one of the stacked shelves away from itself. A raising device moves both the article handling and pushing device and the pushing out device vertically, and keeps both of them at substantially the same height at all times.
    Type: Grant
    Filed: January 14, 1983
    Date of Patent: April 9, 1985
    Assignee: Okamura Corporation
    Inventors: Junichi Nashimoto, Zenkichi Kurokawa