Apparatus for air-laying of fibrous material or granules

Details Apparatus for air-laying of fibrous material or granules Apparatus for air-laying of fibrous material or granules

1998-07-06

1999-12-14

Neas, Michael A.

Textiles: fiber preparation

Assembling

Web forming

19304, 1986891, 425 831, D01G 2500

Patent

active

06000102&

ABSTRACT:
An apparatus for air-laying of a material in the form of fibers or granules onto a running band. The apparatus includes at least one delimited space arranged at a first surface on an at least partially air-permeable endless running band. A vacuum exists in the space during operation and the band runs successively over the space. This takes place concurrently with air being sucked through the band into the space. At least two rotatable support elements are placed in the space in order to counteract down-bending of the running band. The support elements have a rotational direction generally coinciding with the running direction of the band.

REFERENCES:
patent: 3736081 (1973-05-01), Yovanovich
patent: 3883285 (1975-05-01), DeMets
patent: 4306934 (1981-12-01), Seppanen
patent: 4675144 (1987-06-01), Hammond
patent: 4690853 (1987-09-01), Hammond
patent: 4789514 (1988-12-01), Lo
patent: 5200129 (1993-04-01), Kobayashi et al.
patent: 5314585 (1994-05-01), Ward

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