Method and apparatus for controlling a product which is...

Details Method and apparatus for controlling a product which is... Method and apparatus for controlling a product which is...

D - Textiles, Paper

21

F

92/17.5

D21F 1/06 (2006.01) B29C 47/16 (2006.01) D21F 1/02 (2006.01) D21F 7/06 (2006.01)

Patent

CA 1157304

ABSTRACT OF THE DISCLOSURE The present invention teaches a method and apparatus for controlling the size of an opening through which material is metered by directing energy in the form of a magnetic field at an element which forms an integral part of the metering device, the element movable relative to another member. The method and apparatus can be utilized for controlling a desired physical property of a product which is dependent on the metering operation, such properties as basis weight, caliper, density, bulk, reel hardness, gloss, smoothness and opacity, of interest in the paper, plastics and coating fields.

396087

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