HOSE VALVE FOR FEEDING FINE GRAINED MATERIAL

Number of patents in Portfolio can not be more than 2000

United States of America Patent

APP PUB NO 20110001068A1
SERIAL NO

12745551

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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The tube valve is for the output of a finely granulated material preferably dry lime mud that maintains a level of dry matter content of 65-90%. The tube valve has an elastic inner tube arranged within a pressure chamber that surrounds the elastic inner tube. A tube valve is used as an outlet from the pressurized process. The tube valve has a minimum length that is twice a diameter of the tube. A column of lime mud can be held within it as a pressure lock. The column of lime mud can be caused to descend through the tube valve by controlling a difference in pressure between an inner surface and an outer surface of the tube such that the diameter of the tube expands essentially uniformly along its length by 5-10% or by at least 4-6 millimeters.

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Patent Owner(s)

Patent OwnerAddress
METSO PAPER SWEDEN AKTIEBOLAG851 94 SUNDSVALL SUNDSVALL

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Barthelson, Hans Karlstad, SE 2 5
Kindlund, Soren Karlstad, SE 2 5
Rowe, Michael A Karlstad, SE 4 9

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