Protective cover secured by differential pressure

  • US 5,997,071 A
  • Filed: 10/18/1994
  • Issued: 12/07/1999
  • Est. Priority Date: 10/18/1994
  • Status: Expired due to Term
First Claim
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1. A protective cover for an object being transported in an airstream comprising:

  • (a) a unitary flexible cover member of material substantially impermeable to air and dimensioned and configured to cover an associated object being transported in an airstream, said cover member having front and rear ends, a top, two sides and a bottom providing an opening to fit over the associated object, said cover member having at least one exhaust aperture intermediate its ends;

    (b) means for seating said bottom of said cover member closely around the periphery of the associated object to reduce the airflow thereinto; and

    (c) a venting member disposed over said exhaust aperture, said venting member having a base portion secured to said cover member about said aperture and a body portion extending outwardly therefrom, said body portion having a closed end oriented towards said front end of said cover member and having an open end disposed towards said rear end of said cover member, said body portion providing a passage from said aperture to said open end, whereby negative air pressure is created at said open end by the flow of an associated airstream over said venting member and air is exhausted from the interior of the cover member to cause the cover member to seat snugly about the surface of the associated object about which it is fitted.

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