Apparatus for production of fibrous sheet material

Details Apparatus for production of fibrous sheet material Apparatus for production of fibrous sheet material

1980-09-22

1982-09-21

Hall, James R.

Plastic article or earthenware shaping or treating: apparatus

Air felting type shaping means

Means forming running length product

264121, B29J 102

Patent

active

043504825

ABSTRACT:
An apparatus for producing fibrous sheet material comprises a slot nozzle having side walls normal to converging frontal walls, its inlet opening communicating with means for dispersing fibers in a gas stream, while its outlet opening communicates with a chamber. A flat screen adapted to form a fibrous layer thereon is mounted under the chamber, and a suction box is arranged underneath the flat screen, wherein the side walls of the slot nozzle are parallel with respect to each other, and means for removing part of the gas from the gas-fiber stream are provided in the chamber under the outlet opening of the slot nozzle, the chamber being provided with branch pipes for gas exhaust, mounted substantially in the upper portion of the chamber.

REFERENCES:
patent: 2689985 (1954-09-01), Burger et al.
patent: 3028287 (1962-04-01), Greten
patent: 3906064 (1975-09-01), Iannazzi et al.

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