B - Operations – Transporting – 65 – H
Patent
B - Operations, Transporting
65
H
B65H 54/06 (2006.01) B01D 29/11 (2006.01) B01D 39/20 (2006.01) B29C 53/58 (2006.01) B65H 55/04 (2006.01)
Patent
CA 2058026
TITLE Process for Staged Multiple Yarn Winding and Resulting Product 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.
E.i. Du Pont de Nemours And Company
Sim & Mcburney
LandOfFree
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