Patents by Inventor Hideo Tamammori

Hideo Tamammori 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).

  • Load compensation control valve
    Patent number: 5125722
    Abstract: A load compensation control valve for an air brake system for railway vehicles having air springs for producing control pressures proportional to the load sustained by the given vehicle. The load compensation control valve includes a supply chamber, an output chamber, a supply vlave, a supply valve seat, an exhaust valve rod, a balance piston, and an adjusting mechanism for controlling the pressure in the output chamber in accordance with the level of the control pressures.
    Type: Grant
    Filed: July 3, 1990
    Date of Patent: June 30, 1992
    Assignee: Nippon Air Brake Co., Ltd.
    Inventor: Hideo Tamammori