Rake valve for air-fiber streams

Details Rake valve for air-fiber streams Rake valve for air-fiber streams

1991-09-24

1993-07-13

Crowder, Clifford D.

Textiles: fiber preparation

Working

Fluid or special treatment

19205, 19296, 19304, 137832, 138 37, 251301, 406 1, 406159, 406183, D01G 2308, B65G 5112, F15D 114, F16K 120

Patent

active

052262138

ABSTRACT:
A maintenance-free valve for impeding the flow of fibers in a high velocity air-fiber stream. The valve has a rake-like construction to impede fiber flow when in the closed position. The valve has a plurality of closely-spaced, parallel tines attached to a rotatable shaft that is perpendicular to the tines. When closed, fibers collect on the tines of the rake valve, blinding the valve to further fiber flow. When opened, the fibers are dislodged from the tines such that they re-enter the air-fiber stream.

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patent: 4864693 (1989-09-01), Pinto et al.
patent: 4866815 (1989-09-01), Lucassen et al.
patent: 4977645 (1990-12-01), Hosel

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