Apparatus for deflocculating fibrous wad and uniformly distribut

Details Apparatus for deflocculating fibrous wad and uniformly distribut Apparatus for deflocculating fibrous wad and uniformly distribut

1977-09-19

1978-09-12

Newton, Dorsey

Textiles: fiber preparation

Assembling

Web forming

425 831, D04H 100

Patent

active

041125495

ABSTRACT:
A method and apparatus for deflocculating a dry suspension of fibers wherein the fibers are introduced into a housing in suspension in air, and are allowed to commence settling by free fall through the housing. An impeller is positioned below the inlet and is in the path of the falling suspension, the impeller being rotated in such a manner that it provides air currents in opposition to the settling tendencies of the suspension. A foraminous forming means is located below the impeller, and cooperates with suction means acting thereon to form a sheet of fibers from the fibers which ultimately settle onto the foraminous forming means. In a particularly preferred embodiment of the present invention, there is included a mechanical vibrating means which is positioned below the impeller and is arranged to apply small amplitude sonic waves at the suspension passing to the forming means thereby additionally enhancing the deflocculation of the fibers in suspension.

REFERENCES:
patent: 2152901 (1939-04-01), Manning
patent: 2743758 (1956-05-01), Uschmann
patent: 2940134 (1960-06-01), Heritage
patent: 3344479 (1967-10-01), Bryan, Jr.
patent: 3611508 (1971-10-01), Reinhall et al.
patent: 3843756 (1974-10-01), Talbott et al.
patent: 4014635 (1977-03-01), Kroyer

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