Ventilation system for protective garments
AssigneeLakeland Industries, Inc.
InventorsW. Novis Smith, Gary Frazier
Life of this patent
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Abstract
An improvement in ventilating protective garments used against chemical agents. There is provided an arrangement of the air supply and the air exhaust so that the air cools the occupant and sweeps across the visor of a headpiece to prevent fogging. A regulator is used to maintain a degree of inflation in the garment by the incoming air.
Claims15
In a protective garment against chemicals having a headpiece with a visor, arm portions, leg portions and a body portion having at least one side portion which forms a crotch with the leg portions, contains exhaust means and is connected to a source of air, the improvement which comprises said garment being connected to a source of air supply by at least one hose at the side of the body portion of said garment, said garment having a tube connected to said air supply for supplying air directly to the visor and the face of an occupant and an air inlet to allow air into the garment from said air supply;
- a first air exhaust means on the side of the headpiece opposite said air supply hose and a second air exhaust on the leg portion opposite said air supply hose means including the first and second exhaust means and their respective positions relative to the air inlet for passing supplied air across the body of an occupant to cool the body of such an occupant and for preventing fogging of the visor.
In a method for ventilating a chemical protective garment comprising the steps of:
- providing a headpiece including sides and a visor, arm portions, leg portions, a body portion including side portions and a crotch having leg portions;
- providing at least first and second exhaust means on one side of the headpiece and on the the leg portion respectively;
- introducing air into the garment through one of the side portions;
- providing a tube leading directly to the visor and providing introduced air through said tube leading directly to and across the visor to reduce fogging;
- passing introduced air across the body of an occupant to cool such an occupant's body by exhausting air via said first and second exhaust means from positions opposite where air is being introduced.
Dependencies are inferred from the claim text.