Patents by Inventor Katsuo Oana

Katsuo Oana 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).

  • Safe cartridge for gas
    Patent number: 4219126
    Abstract: This invention relates to a safe cartridge for gas and intends that, when the cartridge has been overheated and the inner pressure has abnormally risen, let an invisible crack open in a suitable area of the cartridge to escape the inner gas gradually to reduce the inner pressure, without gushing out a large quantity of the gas in a moment, as in usual rupture discs, to prevent the flying of the cartridge by the force of reaction.
    Type: Grant
    Filed: March 29, 1979
    Date of Patent: August 26, 1980
    Inventor: Katsuo Oana