Patents Assigned to Japan Air Curtain Company, Ltd.
  • Screen having an air cleaning function
    Patent number: 5264015
    Abstract: A space surrounded by screens to provide a stable negative pressure preventing contaminated air from flowing out of the space and cleaning the contaminated air before discharged from the space. Air ports and fans are provided in the screen.
    Type: Grant
    Filed: September 8, 1992
    Date of Patent: November 23, 1993
    Assignee: Japan Air Curtain Company, Ltd.
    Inventor: Shigeo Matsui
  • Artificial tornado generating mechanism and method of utilizing generated artificial tornados
    Patent number: 5096467
    Abstract: An array of parallel pipes, each having ports through which jet-like air streams exit, are arranged so that a peripherally directed air curtain is formed. The posts are shielded at both ends, and one end is provided with a chimney along a central axis of the air by which air or fluid is removed. By giving the air curtain a centrifugal force, a negative pressure is produced along a central core, and a spiral flow is produced, creating an artificial tornado.
    Type: Grant
    Filed: December 9, 1988
    Date of Patent: March 17, 1992
    Assignee: Japan Air Curtain Company, Ltd.
    Inventor: Shigeo Matsui