Patents by Inventor Keiichi Maeda

Keiichi Maeda 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: 5396981
    Abstract: A flexible screw of the invention comprises a flexible rod and a cord helically set on the rod, and can be installed along straight and curved paths of transport. It ensures smooth transport of containers and provides container transport apparatus with a simplified construction at a reduced cost. Moreover, the abrasion of pipe during transport of powder and granular material can be reduced. The container transport apparatus of the present invention is equipped with the screw mentioned above and a guide, or two screws, the members of each pair being positioned in parallel at a given distance, and transfers containers held by the screw and the guide, or the two screws by rotating the screw(s). The container transport apparatus of the present invention enables smooth transport of containers even through a curved path, reduces maintenance cost of the screw(s) during operation, and inhibits abrasion of the rail to a considerable degree.
    Type: Grant
    Filed: December 30, 1993
    Date of Patent: March 14, 1995
    Assignee: Mitsubishi Cable Industries, Ltd.
    Inventors: Masaaki Ohtsuji, Naoki Ohmori, Kenjiro Ishihara, Shigeo Mori, Isao Yokoyama, Kazushi Miyake, Keiichi Maeda
  • Patent number: 5295573
    Abstract: The flexible screw of the invention comprises a flexible rod and a cord helically set on the rod, and can be installed along straight and curved paths of transport. It ensures smooth transport of containers and provides container transport apparatus of simplified construction at reduced cost. Moreover, abrasion of pipe during transport of powder and granular material can be reduced. The container transport apparatus of the present invention is equipped with the screw mentioned above and a guide, or two screws, the members of each pair being positioned in parallel at a given distance, and transfers containers held by the screw and the guide, or the two screws by rotating the screw(s). The container transport apparatus of the present invention enables smooth transport of containers even through a curved path, reduces maintenance cost of the screw(s) during operation, and inhibits abrasion of the rail to a considerable degree.
    Type: Grant
    Filed: August 26, 1991
    Date of Patent: March 22, 1994
    Assignee: Mitsubishi Cable Industries, Ltd.
    Inventors: Masaaki Ohtsuji, Naoki Ohmori, Kenjiro Ishihara, Shigeo Mori, Isao Yokoyama, Kazushi Miyake, Keiichi Maeda