Apparatus for making fibrous sheet material

Details Apparatus for making fibrous sheet material Apparatus for making fibrous sheet material

1975-06-06

1976-08-24

Flint, Jr., J. Howard

Plastic article or earthenware shaping or treating: apparatus

Air felting type shaping means

Means forming stratified products

425 84, B29J 502

Patent

active

039764125

ABSTRACT:
Apparatus for dry forming one or more fibrous layers on a forming surface to provide eventually fiberboard or paper in which the fibers are fed by carrier air to a distributor immediately above the forming surface. The rate of flow of the carrier air and its fiber concentration are adjusted to match the distributor requirements by removal of some of the carrier air in a cyclone separator upstream of the distributor. Any removed fibers are fed back into the remaining carrier air.

REFERENCES:
patent: 3276928 (1966-10-01), Pearson et al.
patent: 3576692 (1971-04-01), Hutz
patent: 3649396 (1972-03-01), Carlsson
patent: 3905864 (1975-09-01), Curry et al.

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