Patents by Inventor Tomio Maeda

Tomio 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: 6976823
    Abstract: A work reversing system is provided which includes a pair of oscillation drive units, an elevation drive unit, an elevation block, and a pair of oscillation levers. The elevation block is moved up and down by an elevation lever of the elevation drive unit, and has fixed thereto a pair of guide plates which each have a guide recess formed therein. Each oscillation lever has a sliding block provided slidably thereon, which has a guide projection sliding in the guide recess. As the elevation block and oscillation levers are activated, the sliding block is moved in a direction defined by the guide recess. A work is caught by one of clamping members attached to the sliding blocks, and the clamping member is elevated and oscillated. The work is then caught by the other clamping member, and the clamping member is oscillated and lowered, so that the work is reversed.
    Type: Grant
    Filed: August 2, 2001
    Date of Patent: December 20, 2005
    Assignee: Yamakyu Chain Co., Ltd.
    Inventor: Tomio Maeda
  • Publication number: 20030132562
    Abstract: A work reversing system is provided which includes a pair of oscillation drive units (A1, A2) and elevation drive unit (A3), an elevation block (15), and a pair of oscillation levers (20). The elevation block (15) moved up and down by an elevation lever (8) of the elevation drive unit (A3) has fixed thereto a pair of guide plates (30) each having a guide recess (31) formed therein. The oscillation lever (20) has a sliding block (25) provided slidably thereon and which has a guide projection (27) sliding in the guide recess (31).
    Type: Application
    Filed: January 28, 2003
    Publication date: July 17, 2003
    Inventor: Tomio Maeda