Stock material or miscellaneous articles – Structurally defined web or sheet – Including aperture
Patent
1999-01-25
2000-11-07
Copenheaver, Blaine
Stock material or miscellaneous articles
Structurally defined web or sheet
Including aperture
428137, 428219, 428220, 428405, 428911, 442 79, 442 80, 442 85, 442 86, 442 91, 442 93, 442121, 442122, 442395, 52 19, 52 20, 404 25, B32B 310, B32B 300
Patent
active
061433942
ABSTRACT:
There is disclosed the manufacture and use of nonwoven absorbent mats laminated with barrier film for manhole aprons. The absorbent aprons are used about manholes during routine maintenance of underground transformers, utility cables, etc. The nonwoven aprons are coated to prevent the absorbed liquid from leaching through. The mat is specially designed to absorb contaminated liquid very quickly. The nonwoven mat is made out of cotton shoddy fibers and/or a mixture of synthetic fibers and/or synthetic fibers only with film on one side. The mat has a 36-inch manhole opening in the center thereof. The mat is thin and lays flat to conform to the road. The thickness of the mat ranges from 0.075" to 0.25" in order to avoid any tripping hazard.
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Chhabra Gulshan
Patel Kirit H.
Copenheaver Blaine
KG Fibers, Inc.
Singh Arti
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