Title: Matting for hydraulic engineering end-uses

Abstract: Matting for hydraulic engineering consisting of a gripper layer of melt-spun filaments fused with each other and having a diameter of 0.2 to 1.5 mm and a filter layer of fine fibers, where a layer of grain rearrangement inhibiting material runs through the hollow spaces of the gripper layer.

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Inventors: Bronner, Juergen (Wuppertal, DE)

Application Number: 06/160326
Filing Date: 1980-06-17
Publication_date: 1982-05-11
Assignee: AKZONA INC

Primary Class(es): 442/383 442/400, 442/334, 405/19, 405/16
Other Classes: D04H5/08; E02B3/12; D04H5/00; E02B3/14; B01D39/00
US Patent Ref:

3811287	May, 1974	Winter	61/38	BOTTOM AND BANK FACING
3928696	December, 1975	Wandel et al.	428/102	Stitched webs of fleeces of synthetic fibers and method of making same
4168335	September, 1979	Vos et al.	428/58	Underwater terrain reinforcement matting

Other Refs: DE2035469DE2408518

January, 1972	405/19
September, 1975	405/16

Other References: "Neue Landschaft", 3/77, p. 116.
Brochure 7393/7/10 of Oltmanns Ziegel and Kunstoffe Co., 2905 Edewecht/Jeddeloh I.

Primary Examiner: Kittle, John E.
Assistant Examiner:
Attorney: