Patents by Inventor Takeo Tezuka

Takeo Tezuka 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).

  • Electromagnetic counters
    Patent number: 4250404
    Abstract: The counter is provided with a plurality of digit wheels, the first order digit wheel thereof having a star wheel on one side, a plurality of pinions for effecting carries of the digit wheels, a pair of pawls driven by a driving member for alternately engaging the pawls with the star wheel, an electromagnetic driving device for driving the star wheel through the driving member, and a control member including cam members for preventing the tilting of the driving member when an external shock or vibration is applied to the counter tending to swing the driving member thus causing the misoperation of the star wheel.
    Type: Grant
    Filed: February 8, 1979
    Date of Patent: February 10, 1981
    Assignee: Tamura Electric Works, Ltd.
    Inventors: Yukio Yamamoto, Takeo Tezuka