E.i. Dupont De Nemours and Company

Leonard Ray Tucker

Lyles Howard Sowell

Kenneth Stephen Freund

Todd A McCoy

James Stephen Bailey

Phillip Osborne Staples

Andrew James Giles

A process of feeding carded fiber to an airlay and particularly to combining carding technology with airlay technology. A carding machine portion is arranged to card fiber while a disperser-roll in the airlay portion picks the individualized carded fibers from a tool bed roll and centrifugally doffs them into an air stream. As such, airlays will be able to handle longer fiber lengths which conventional airlay equipment is unable to handle or satisfactorily open up. Further, an improved process for doffing fiber from a airlay machine and particularly centrifugally doffing fiber from a carding machine.

Feeding carded fiber to an airlay

This invention relates to improved aerodynamics in dry fiber web forming machines and particularly to airlays which form high quality webs. The invention includes a disperser roll for feeding fibers into the air stream and a second roll opposite to the disperser roll for balancing the disruptive effects of long stationary walls and rotating members in the air duct. In one alternative arrangement of the invention, the fibers are also fed to the air stream by a second disperser roll opposite the first disperser roll.

Method and apparatus for improving the air flow through an air duct in a

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Hendersonville, TN, United States of America

Leonard Ray Tucker