Patents by Inventor Seiichi Awano

Seiichi Awano 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).

  • Hot-water boiler of the direct-heating type
    Patent number: 4141343
    Abstract: A hot-water boiler of the direct-heating type basically comprising a combustion chamber and a heat-exchange chamber which encircles the lower half part of the combustion chamber and which has a number of reticulate plates therein. Combustion gas generated in the combustion chamber effuses into the heat-exchange chamber where water to be boiled is stored. The combustion gas goes through the water in the heat-exchange chamber and is broken up into smaller bubbles by the reticulate plates; thereby facilitating a prompt and efficient heat-exchange between the gas and water.
    Type: Grant
    Filed: February 10, 1977
    Date of Patent: February 27, 1979
    Assignee: Seiichi Awano and Yasui Sangyo Co., Ltd.
    Inventors: Seiichi Awano, Matsuo Nishimura