Method and apparatus for improving the air flow through an air d

Details Method and apparatus for improving the air flow through an air d Method and apparatus for improving the air flow through an air d

1996-12-03

1998-07-14

Crowder, C. D.

Textiles: fiber preparation

Assembling

Web forming

19296, D01G 2500

Patent

active

057784949

ABSTRACT:
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.

REFERENCES:
patent: 3641628 (1972-02-01), Fehrer
patent: 3740797 (1973-06-01), Farrington
patent: 3797074 (1974-03-01), Zafiroglu
patent: 3895089 (1975-07-01), Goyal
patent: 3914822 (1975-10-01), Wood
patent: 3932915 (1976-01-01), Contractor et al.
patent: 4097965 (1978-07-01), Gotchel et al.
patent: 4130915 (1978-12-01), Gotchel et al.
patent: 4475271 (1984-10-01), Lovgren et al.
patent: 4701294 (1987-10-01), Radwanski et al.

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