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US 5,498,459 AGranted
Method and apparatus for making a pile article and the products thereof
AssigneeE. I. Du Pont de Nemours and Company
InventorsAhmed M. Mokhtar, Peter Popper, William C. Walker, Paul W. Yngve
Life of this patent
Estimating the term…
Abstract
An elongated pile article having a support strand for attachment to a plurality of yarn bundles, the yarn bundles including a dense portion with the filaments bonded to each other and bonded to the support strand, pile surface structure comprised of a plurality of elongated pile articles placed one next to the other, and a method and apparatus for making the elongated pile article.
Claims15
A pile article comprising:
- a support strand;
- and a plurality of bundles of filaments, each bundle defining loop pile-forming tufts, each of said bundles having a dense portion of filaments bonded together and secured to said support strand;
- each of said bundles of filaments having a frangible portion adjacent the dense portion wherein the strength of the frangible portion is less than the strength of the bundle of filaments before bonding.
A pile article comprising:
- a support strand;
- a plurality of bundles of filaments each bundle defining a pair of loop pile-forming tufts, the tufts in said pair bent at an angle at a base and extending upwardly therefrom, the tufts defining a spaced distance therebetween adjacent said base, each of said bundles having a dense portion of filaments bonded together and secured to the support strand at said base, said support strand having a width that is equal to or less than the distance between the tufts in a pair.
A pile article comprising:
- a support strand;
- a plurality of "U" shaped bundles of filaments each bundle defining a pair of loop pile-forming tufts, the tufts in each pair bent at an angle at a base and extending upwardly therefrom, each of said bundles having a dense portion of filaments bonded together and secured to the support strand within and at the base of said "U".
A pile surface structure comprising:
- a backing substrate having a plurality of projections extending out from the surface with the projections terminating in overhanging portions;
- a plurality of pile articles, each comprising a support strand and having attached thereto a plurality of bundles of filaments, the bundles in the form of loop pile-forming tufts which are attached to the support strand at a base;
- said pile articles placed one next to the other on said substrate with the support strand located between the projections and retained between the overhanging portions and the substrate with the base of the bundles adjacent the substrate, and the tuft extending beyond the overhanging portions.
A pile surface structure comprising:
- a backing substrate;
- a plurality of pile articles, each comprising a plurality of bundles of filaments attached to a support strand wherein each bundle is in the form of a pair of loops with one of the pair bonded on each side of the strand;
- said pile articles being placed one next to the other and attached to said substrate.
Dependencies are inferred from the claim text.