Patents by Inventor Shuzaburo Shimmura

Shuzaburo Shimmura 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).

  • Starting system of carburetors for multiple kinds of fuels
    Patent number: 4401094
    Abstract: Two embodiments of dual fuel systems for internal combustion engines embodying a normal running fuel and a special fuel used for only cold starting. In each embodiment an arrangement is provided for positively cutting off the flow of starting fuel when the cold starting mode is no longer required. In one embodiment this is done automatically. Each embodiment employs an arrangement for permitting cold start enrichment with either the normal running fuel or with the special starting fuel depending upon the temperature.
    Type: Grant
    Filed: April 13, 1981
    Date of Patent: August 30, 1983
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Shuzaburo Shimmura, Tokuichi Hakamata, Masahiro Takemoto