Patents by Inventor Kuniyoshi Sakakibara

Kuniyoshi Sakakibara 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).

  • Safety device for fan heater
    Patent number: 4543056
    Abstract: The safety valve of a fan heater is operated by a detector pipe, the outlet of which is shielded from its inlet and communicates with the warm wind circulating fan of the heater to forcibly draw burned gas into the detector pipe for stable flow therethrough. A timed delay stops operation of the fan only after the flow of gas has been shut off by the safety valve for a time sufficient to discharge combusted gas from the detector pipe.
    Type: Grant
    Filed: December 6, 1984
    Date of Patent: September 24, 1985
    Assignee: Rinnai Corporation
    Inventor: Kuniyoshi Sakakibara