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:
Mar. 02, 1999
Filed:
May. 05, 1997
Applicant:
Inventors:
Peter Edward Stevenson, Easley, SC (US);
Jeffrey King, Salem, OR (US);
Assignee:
The Tensar Corporation, Atlanta, GA (US);
Primary Examiner:
Int. Cl.
CPC ...
E02B / ;
U.S. Cl.
CPC ...
442 36 ; 442 57 ; 442383 ; 442388 ; 428 86 ;
Abstract
A non-woven needle-punched filter fabric for use in a geocomposite having a filter face and a laminating face, the fabric having a first filter and cushion zone adjacent the filter face produced from spun bond, continuous filament, a second stiff and bend resistant zone adjacent the first zone produced from a blend of staple non-fusible fiber and staple fusible fiber, and a third zone at the laminating face produced from fiber from both the first and second zones whereby the third zone has a hairy characteristic which facilitates laminating the fabric to a drainage net or a geogrid.