Patents by Inventor Syoji Itomi

Syoji Itomi 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).

  • Torque limiter having automatic reset function
    Patent number: 5672110
    Abstract: A torque limiter adapted to be automatically reset after a long period of time. The inner ring (1) has a cylindrical surface (5). A polygonal engaging surface (9) is formed on the outer ring (2) by a leaf spring in the shape of a polygonal ring. A cage (11) having pockets is provided between the inner and outer rings (1, 2). Rollers (13) received in the pockets are adapted to engage the cylindrical surface (5) and the engaging surface (9) at the narrowest portions. The inner ring (1) has an eccentric surface (15) on which is supported a bearing (16) which holds the cage (11) in a diametrically offset position. An annular portion (20) of the cage (11) is brought into contact with an annular portion (19) of the outer ring (2). As the torque increases with the rollers (13) engaged, the leaf spring (8) is deformed and the rollers (13) pass through the engaging positions, so that the clutch is disengaged.
    Type: Grant
    Filed: May 28, 1993
    Date of Patent: September 30, 1997
    Assignee: NTN Corporation
    Inventors: Masahiro Kurita, Syoji Itomi, Yuji Okamoto