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Document Number
US Patent 5147242
Issued Date
September 15, 1992
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Abstract
A hazardous waste removal assembly includes a generally rectangular flexible bag having a front panel and a back panel joined at a lower portion of the bag to form a collection chamber. The bag is sealed such that it is impermeable to dust and other particulate matter. The assembly also includes at least one glove sleeve fashioned through the front panel of the bag to permit an operator to remove abestos from a segment of the enclosed conduit, while maintaining subatmospheric air pressure within the bag. A replacement air intake inlet valve is positioned on the front or back panel to permit the ingress of ambient air into the bag while concomitantly preventing egress of air or particulate contents out of the bag.
Drawing
Negative air bag - US Patent 5147242 Drawing
Drawing from US Patent 5147242
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Number of Claims:
5
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Owner
Published
September 15, 1992
Application Number
07/608,388
Filed
November 2, 1990
US Classification
454/63   312/1 55/385.2
Int'l Classification
B08B   15/00   (20060101)   B08B   15/02   (20060101)  
Examiner
USPTO Field of Search
98/115.3   98/115.4   55/1   55/97   55/385.2   55/467   312/1  
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