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US 5,306,534 AGranted
Vacuum cleaner bag with electrostatically charged meltblown layer
AssigneeHome Care Industries, Inc.
InventorMark D. Bosses
Life of this patent
Estimating the term…
Abstract
This invention relates to a vacuum cleaner filter having an outer textile fabric material laminated to a non-woven composite material. The composite material comprises an inner and an outer cover layer of a spun-bonded, non-woven web material, with at least one electrostatically charged intermediate meltblown layer sandwiched therebetween.
Claims17
A reusable vacuum cleaner bag fabricated from a multi component sheet, said sheet comprising:
- an outermost layer of a textile fabric material, said outer layer being laminated to a non-woven composite material, said composite material comprising:
- an inner cover layer of a spun-bonded, non-woven web;
- at least one electrostatically charged intermediate meltblown layer;
- and
- an outer cover layer of a spun-bonded, non-woven web.
2 more elements
Dependencies are inferred from the claim text.