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US 4,626,291 AGranted
Portable containment device for treatment of hazardous materials
OwnerThomas Nataleinventor
Life of this patent
Estimating the term…
Abstract
A containment bag system specifically adapted for the removal of asbestos insulation from asbestos covered pipes and valves without contamination of the worker or the surrounding environment; a method of removing asbestos and other hazardous materials from limited areas using a safe containment system; a method for manufacturing the containment system.
Claims10
A disposable device adapted for receiving asbestos insulation and like hazarous materials, said disposable device comprising:
- a length of lay-flat tubing forming a bag, said bag being flexible and collapsible and including
- two sides,
- two side edges formed by opposed folds of said bag, said two side edges joining said two sides together,
- a top edge of said bag and a bottom edge of said bag, said two side edges extending substantially parallel to each other from said top edge of said bag to said bottom edge of said bag,
- said top edge and said bottom edge extending substantially parallel to each other and extending substantially perpendicular to said two side edges,
- said bottom edge being sealed to close off a bottom of said bag and said top edge having an opening for entry of said asbestos insulation and like hazardous materials into the interior of said bag, and
- glove means sealed to one of said two sides of said bag for protected access to the interior of said bag from the exterior of said bag.
4 more elements
In combination for removal of asbestos insulation and like hazardous material, said combination comprising:
- (a) structural means having asbestos insulation thereon,
- (b) flexible bag means surrounding and extending below at least a portion of said structural means and defining a sealed enclosure,
- (c) said flexible bag means including a length of lay-flat tubing having substantially parallel side edges formed by opposed folds of said tubing, substantially parallel top and bottom edges extending substantially perpendicular to said side edges and said flexible bag means further including at least one arm hole and one glove sealed thereto and extending into said sealed enclosure,
- (d) means defined by said flexible bag means for access of at least one of a tubular wetting device and a vacuum device into said bag, and
- (e) said sealed enclosure receiving and retaining the asbestos insulation removed from said structural means for disposal without subjecting said asbestos insulation to the open atmosphere.
2 more elements
Dependencies are inferred from the claim text.