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Portable smoke and gas dispeller

  • US 5,002,049 A
  • Filed: 04/04/1989
  • Issued: 03/26/1991
  • Est. Priority Date: 04/08/1988
  • Status: Expired due to Fees
First Claim
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1. A portable smoke and gas dispeller suitable for use by a wearer in conditions in which hindering smoke or gas is developed, said dispeller having means to prevent the smoke or gas from being breathed by the wearer, said means emitting a stable air screen, said dispeller comprising:

  • a single housing unit having a front wall, side walls and rear wall along with a top and bottom, said housing being positioned during use such that said rear wall is contiguous to the wearer'"'"'s chest, said front and rear walls of said housing being provided with at least one air inlet orifice, a horizontally-lying slot-like air outlet orifice that extends horizontally outward around said housing from one edge of said rear wall along both of said side walls, and said front wall of said housing to the other edge of said rear wall, said orifice being arranged at a constant upward angle of approximately 5°

    to 30°

    to the horizontal plane for blowing air upward over an arc of 180°

    in the horizontal plane for introducing air into said single housing unit and for expelling said air under pressure via said outlet orifice and directing a stable air screen toward the breathing zone of the wearer.

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