Fiber spray system

Details Fiber spray system Fiber spray system

1988-10-21

1990-10-16

Hoag, Willard

Coating processes

Solid particles or fibers applied

118308, 118324, 222630, 222637, 239325, 239345, 239346, 406 73, 406121, 427206, 427421, B05C 500

Patent

active

049633929

ABSTRACT:
A fiber spray system for depositing fibers onto a substrate or article comprises a vibrating feeder bowl having an opening in its sidewall covered by a grid or screen through which fibers loaded into the feeder bowl are discharged therefrom into the fiber collector. A delivery hose is connected between the fiber collector and a pump which is operative to create a negative pressure within the fiber collector to draw fibers through the grid of the feeder bowl, out of the feeder bowl into the fiber collector and to entrain the collected fibers within a stream of air. The air-entrained fibers are drawn through the delivery hose to the pump, and in the course of passage therethrough the velocity of the fibers is reduced so that they collect or accumulate within an area in the delivery hose upstream from the pump. The pump uniformly withdraws fibers from the area where they accumulate and discharges the fibers directly into a spray gun connected to the pump for deposition onto a substrate.

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