Patents by Inventor Kunihiro Inai

Kunihiro Inai 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).

  • Waste gas apparatus for electric furnace
    Patent number: 4437186
    Abstract: A primary duct is provided for supplying hot waste gas from an electric furnace to a preheater bucket charged with scrap. A preheating waste gas duct connected to the bucket is branched into a discharge duct for releasing preheating waste gas from the apparatus and a recycling duct for recycling preheating waste gas to the primary duct. In the vicinity of the junction of the primary duct and the recycling duct, an air inlet is formed for supplying air into the primary duct for burning the preheating waste gas.
    Type: Grant
    Filed: March 29, 1982
    Date of Patent: March 13, 1984
    Assignee: Nikko Industry Co., Ltd.
    Inventor: Kunihiro Inai