US 4,157,724 A · Method and an apparatus for distributing a disintegrated material onto a layer forming surface

Abstract

A method and an apparatus for distributing loose fibers or particles onto a moving web in an even layer thereon preparatory to production of a non-woven sheet of the fiber or particle material. The material is filled into a container having a generally V-shaped screen bottom extending crosswise over the moving web, and whipping members are rotated in the bottom space so as to whip the material adjacent the interior surface of the screen by a whipping movement causing the fibers or particles to be slung against the screen and the material to move in a flow lengthwise along the bottom surfaces, whereby when suction is applied to the outside of the screen bottom through the web the fibers or particles will get dispensed through the screen and deposited on the web. The combined whipping and slinging of the material contributes to a high capacity of the distribution.

Claims21

Dependent claims

Apparatus for depositing and distributing loose fibres or particles onto a surface of a moving carrier web comprising:

(a) a housing having inlet and outlet ends;
(b) a moving carrier web having a surface positioned adjacent the outlet end of said housing;
(c) screen means within said housing between said inlet and outlet ends, at least part of said screen means being arranged so as to extend in a manner which is transverse and non-parallel with respect to the surface of the moving carrier web;
(d) agitator means within said housing for creating a flow of said particles or fibres about an axis extending between said inlet and outlet ends, and for directing said particles or fibres outwardly against and through said screen means;
and
(e) means for directing particles or fibres passing through said screen means to said moving carrier web whereby said particles or fibres are deposited in a layer upon said moving carrier web.

3 more elements

Dependencies are inferred from the claim text.

Method and an apparatus for distributing a disintegrated material onto a layer forming surface

Life of this patent

Method and an apparatus for distributing a disintegrated material onto a layer forming surface

Life of this patent

Abstract

Claims21