The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 03, 2009
Filed:
May. 28, 2003
Franke Atsma, Woudsend, NL;
Durk Wildschut, Wijckel, NL;
Franke Atsma, Woudsend, NL;
Durk Wildschut, Wijckel, NL;
Lankhorst Indutech B.V., Sneek, NL;
Abstract
A yarn for strands of an artificial turf ground cover, including a tape filament () having a core layer () and two outer layers () of a different material than the core layer (), each on one of two opposite sides of the core layer. The core layer () contains at least polyester or polyolefin material, and the outer layers () contain high-density polyethylene. An artificial turf ground cover and a playing field including such a yarn and a method for producing such a yarn are also described. The high-density polyethylene has a relatively small coefficient of friction with the human skin and the yarn has a good shape recovery after deformation in spite of containing HDPE in outer layers.