Pile Carpet, US Patent No. 5876827
Sample pages
Page 22, at reduced quality. Open the document to read every page in full.
US Patent 5,876,827 (granted March 2, 1999) to Wilbert E. Fink and Jean-Claude Auguste, assigned to Polyloom Corporation of America. It describes a recyclable tufted polypropylene loop pile carpet in which an extruded polypropylene sheet is fused to the yarn back loops and primary backing, so the carpet resists fuzzing and passes the fiberlock (Velcro) test. The patent covers the carpet product, the manufacturing process, and the apparatus (heated roller, extruder, casting roll). It includes claims, cited references, patent drawings, simulation and tuft-bind examples for grass and BCF loop pile carpets, and temperature graphs. The scan contains both a USPTO web printout and the printed patent.
- Type
- Patent
- Date
- March 2, 1999
- Language
- English
- Pages
- 39
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From Ralph Griswold's Digital Archive, delivered by the University of Arizona.
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