Patents by Inventor Fumio Chida

Fumio Chida 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).

  • Adjusting device for thermal overload relay
    Patent number: 4642598
    Abstract: A thermal overload relay of the type which uses a shifter to transmit thermal bending of the main bimetallic element to one end of the temperature compensating bimetallic element which is connected to a release lever which controls the closing of the relay and which includes an adjusting link which has an eccentric stem whose degree of rotation controls the setting of the release lever. As a calibration control to correct for unintended manufacturing variations and aging effects, the adjusting link supports an adjustment pin with an eccentric stem which abuts the eccentric stem of the adjusting dial to provide further control of the setting of the release lever.
    Type: Grant
    Filed: December 6, 1985
    Date of Patent: February 10, 1987
    Assignee: Fuji Electric Co., Ltd.
    Inventors: Haruo Ichikawa, Fumio Chida, Katsumi Akiike, Kanichi Izumi