Industrial fabric with asymmetrically apertured tiles

Details Industrial fabric with asymmetrically apertured tiles Industrial fabric with asymmetrically apertured tiles

2005-06-07

2005-06-07

Thomas, Alexander S. (Department: 1772)

Stock material or miscellaneous articles

Two dimensionally sectional layer

Next to unitary web or sheet of equal or greater extent

C428S047000, C428S053000, C428S056000, C428S061000, C428S137000, C428S223000

Reexamination Certificate

active

06902787

ABSTRACT:
A permeable industrial fabric is assembled from a plurality of separate tiles into at least two plies, and in which the two plies are held together by jointing structures made integrally with the tiles. In these fabrics, within each tile the jointing structures are incorporated at primary selected locations according a symmetrical pattern, and the apertures in the tiles which provide the required fabric permeability are incorporated at secondary and tertiary selected locations according two more patterns, at least one of which is asymmetrical. This combination of symmetry and asymmetry allows for some control over the permeability of the assembled fabric.

REFERENCES:
patent: 4469221 (1984-09-01), Albert
patent: 4537658 (1985-08-01), Albert
patent: 4541895 (1985-09-01), Albert
patent: 4579771 (1986-04-01), Finn et al.
patent: 4842905 (1989-06-01), Stech
patent: 5797170 (1998-08-01), Akeno
patent: 2 300 590 (2000-09-01), None
patent: 34 44 082 (1986-08-01), None
patent: 37 35 709 (1987-10-01), None
patent: 0802280 (1997-10-01), None
patent: 1 035 251 (2000-09-01), None
“Standard Test Method for Air Permeability of Textile Fabrics 1”—ASTM Designation: D 737-96, Mar. 2002.

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