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:
Dec. 04, 1979
Filed:
May. 08, 1978
Akzona Inc., Asheville, NC (US);
Abstract
An improved coherently bonded, low density matting article composed of a primary matting layer in which synthetic fiber-forming thermoplastic macrofilaments are irregularly looped and intermingled in a highly porous or open peak and valley three-dimensional sheet structure, preferably having peaks, humps or projections in a waffle-like pattern, and a secondary footing layer or 'sole' applied and fused or bonded by its surface filaments to some of the filaments in the peak portions on one face of the primary matting layer. A special process and apparatus are provided to produce this matting article wherein transverse strength is increased while maintaining a low apparent density and further improving its filling characteristics for use as a soil retention matting.