Eductor airforming apparatus

Details Eductor airforming apparatus Eductor airforming apparatus

1986-01-13

1987-10-20

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Bulk deposition of particles by differential fluid pressure

264116, 264121, 425 821, 425 831, B29C 4322

Patent

active

047012943

ABSTRACT:
The present invention provides an improved apparatus and method for forming a fibrous web. In accordance with the invention, a distributor housing delimits a fiberizing zone, and a delivery mechanism supplies a fiberizable material into the fiberizing zone. A moveable striking mechanism located in the fiberizing zone contacts the fiberizable material to initially separate the material into individual fibers. A discharging mechanism exits the fibers from the fiberizing zone into a web forming zone and toward a foraminous web forming layer. A gas delivering mechanism forces a stream of gas into the fiberizing zone to entrain the fibers therein and to eject a moving stream of the gas and fibers through the discharging mechanism into the web forming zone. The gas-fiber stream moves at a velocity sufficient to draw an induced supplementary gas flow past the discharging mechanism and toward the foraminous forming layer. A steering mechanism located in the web forming zone selectively guides the induced supplemental gas flow to direct the fibers toward selected areas of the foraminous forming layer.

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