Title:
Shaping of non-woven batts
United States Patent 3227592

Inventors:
Coates, Herbert W.
Dunlap, Donald T.
Publication Date:
01/04/1966
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Assignee:
CELANESE CORP
Primary Class:
156/93
Other Classes:
425/383, 156/208, 156/207, 156/459, 264/282, 425/174.400, 156/474, 55/521, 55/499, 55/524
International Classes:
B01D39/16; D04H1/54; D04H1/70
US Patent References:
2480316Method of making laminated cushion material
2513777Apparatus for sinuous contoured material
2514145Filter material
2556011Method of making a cellular structural panel and product
2591490Air filter
2623266Crimped fibers, filaments, and threads
2662577Method of making trimming
2668573Apparatus and process for corrugating paper
2894855Method of making breathable vinyl resin coated fabric
2936855Pleated filter and mechanism for forming same
2938567Machine and method for producing prefabricated material of cellular construction
2939509Plastic corrugating process and machine
Foreign References:
DE364381C