Patents by Inventor Norio Oonishi

Norio Oonishi 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).

  • Patent number: 4783008
    Abstract: An atomizer nozzle assembly for producing an extrafine mist of liquid includes a nozzle assembly, with a liquid passage hole of each nozzle tip of the assembly extending along a longitudinal axis of the nozzle tip. A front end opening of each liquid passage hole is centrally formed in the front end face of each nozzle tip. The angle of taper of a front tapered portion of each nozzle tip is 16.degree.-24.degree.. With the above arrangement, it is possible to produce a substantially ultrafine mist when the atomizing operation is started and it is also to produce an ultrafine mist having a constant particle diameter during a rise in the initial pressure of compressed air immediately following the start of atomization.
    Type: Grant
    Filed: June 9, 1987
    Date of Patent: November 8, 1988
    Assignee: H. Ikeuchi & Co., Ltd.
    Inventors: Hiroshi Ikeuchi, Norio Oonishi
  • Patent number: 4750515
    Abstract: A liquid storage tank having a feed port is provided with a float valve for opening and closing the same. The float valve includes a float member and a rod member having one end connected to the float member. The other end of the rod member is fitted into a valve seat, which is formed on the inner periphery of a feed pipe constituting the feed port, and is provided with a valve plug portion for opening and closing the valve seat. When the level of the liquid in the tank is lowered together with the float member, the rod member is tilted so that the valve plug portion is partially separated from the valve seat to open the feed port. When the float member is in a position at which the float member supports the rod member in a horizontal position, the valve plug portion is seated on the valve seat to close the feed port. The pressure of the supply of liquid acts on the valve plug portion to urge the valve seat portion against the valve seat.
    Type: Grant
    Filed: June 16, 1987
    Date of Patent: June 14, 1988
    Assignee: H. Ikeuchi & Co., Ltd.
    Inventors: Kazuhiro Fukushima, Norio Oonishi, Takeo Mizuno