Process for staged multiple yarn winding and resulting product

Details Process for staged multiple yarn winding and resulting product Process for staged multiple yarn winding and resulting product

1990-12-21

1993-03-09

Lesmes, George F.

Stock material or miscellaneous articles

Hollow or container type article

Glass, ceramic, or sintered, fused, fired, or calcined metal...

428 346, 428241, 428302, 428288, 428902, A47G 1922, B32B 108, B32B 506, B32B 522

Patent

active

051925974

ABSTRACT:
A process is disclosed wherein a plurality of layers of yarns are laid down in a diamond shaped pattern on a rotating cylindrical mandrel wherein the yarn walls forming the diamond shaped pattern cover the openings of each adjacent layer. The yarns are formed of refractory oxide filaments which are coated with a refractory ceramic to form a filter or trap for removing particulates from combustion exhausts.

REFERENCES:
patent: 3902944 (1975-09-01), Ashton et al.
patent: 3989471 (1976-11-01), Nowak
patent: 4104426 (1978-08-01), Gonzalez et al.
patent: 4205971 (1980-06-01), Abthoff et al.
patent: 4348439 (1982-09-01), Jones
patent: 4415613 (1983-11-01), Medney
patent: 4761323 (1988-08-01), Muhlratzer et al.
patent: 4902487 (1990-02-01), Cooper et al.
patent: 4923487 (1990-05-01), Bogart et al.
patent: 4925463 (1990-05-01), Kuhnert

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