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US 4,070,515 AGranted
I-Beam shaped bristled article
AssigneeUnion Carbide Corporation
InventorWalter H. Smarook
Life of this patent
Estimating the term…
Abstract
A bristled article is integrally formed in an essentially one step low pressure process from a sheet of thermoformable material between a top and bottom mold surface. The bottom mold surface is smooth and the top mold surface is channeled, and the sheet, in a fused state, is pulled between the mold plates and while bonded thereto by hot tack adhesion, and bristles form at the points of contact with the top mold surface. The bristled articles are useful as brush devices, artificial turf, packaging material and the like.
Claims26
An article of commerce integrally formed from thermoformable material and comprising
- a continuous base member, and
- a plurality of bristle members projecting vertically from at least one side of said base member, each of said bristle members having an I beam configuration.
Dependencies are inferred from the claim text.