Process and apparatus for the production of fiber fleece

Claim 1

IN COMBINATION WITH MEANS FOR SPINNING FILAMENTS AND ADVANCING THE FILAMENTS ALONG A DEFINED PATH, A FLEECE FORMING DEVICE COMPRISING: (A) PERFORATED MEMBERS DISPOSED ONE ON EITHER SIDE OF THE SAID PATH, AND SPACED FROM EACH OTHER A DISTANCE IN EXCESS OF THE THICKNESS OF THE FILAMENTS AND EQUAL TO THE THICKNESS OF THE FLEECE TO BE FORMED AND MEANS FOR MOVING SAID MEMBERS IN THE DIRECTION OF THE ADVANCE OF THE FILAMENTS ALONG SAID PATH, (B) MEANS FOR PASSING GAS STREAMS IN A DIRECTION EXTENDING TRANSVERSE TO THE PATH AND HAVING COMPONENTS PERPENDICULAR TO THE PATH TO DISRUPT THE MOVEMENT OF THE FILAMENTS AND AS THEY PASS TO BETWEEN THE FLEECE FORMING MEMBERS TO CAUSE INDIVIDUAL FILAMENTS TO BE DISPERSED BACK AND FORTH WITH RESPECT TO THE FLEECE FORMING MEMBERS, SAID MEANS FOR PASSING THE GAS STREAMS PROVIDING AT LEAST TWO GAS STREAMS THE SAID PERPENDICULAR COMPONENTS OF WHICH ARE OPPOSITE IN DIRECTION, AND (C) MEANS FOR DIRECTING THE FILAMENTS IN GENERALLY STRAIGHT CONDITION ALONG A PORTION OF SAID PATH TO SAID GAS STREAMS.