Ductwork with sensor and pivoting gate for fiber impurity remova

Details Ductwork with sensor and pivoting gate for fiber impurity remova Ductwork with sensor and pivoting gate for fiber impurity remova

1992-09-18

1994-02-22

Crowder, Clifford D.

Textiles: fiber preparation

Working

Fluid or special treatment

209555, 209570, D01G 2308, D01G 908

Patent

active

052875997

ABSTRACT:
An apparatus for separating foreign matter from a pneumatically conveyed stream of textile fibers has a pneumatic duct in which the textile fibers are conveyed by an air stream; a waste container; first and second coupling openings for maintaining communication between the waste container and the pneumatic duct; and a gate pivotally supported in the pneumatic duct. The gate has a first position maintaining open the pneumatic duct and obturating the first and second coupling openings for allowing the fiber material to be conveyed by the air stream through the duct by bypassing the waste container. The gate further has a second position obturating a direct passage through the pneumatic duct and maintaining open the first and second coupling openings for directing the fiber material and the air stream from the pneumatic duct into the waste container and for allowing conveying air to pass from the waste container back into the pneumatic duct. The apparatus further has a detector for detecting foreign matter in the fiber material; and a control device connected to the detector and the gate for pivoting the gate from the first position into the second position upon detection of foreign matter by the detector.

REFERENCES:
patent: 3435484 (1969-04-01), Langdon
patent: 4480753 (1984-11-01), Thomas et al.
patent: 4753353 (1988-06-01), Kramer
patent: 4763792 (1988-08-01), Kind
patent: 4866815 (1989-09-01), Lucassen
patent: 4977645 (1990-12-01), Hosel

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