Defrothing method and apparatus

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4818377
SERIAL NO

07110931

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A defrothing apparatus whose inlet opening of the foamed liquid contained in a foam duct of a primary flotation apparatus is provided in the bottom of the foam duct. Starting from the lower area of the defrothing apparatus, a rotary flow (potential vortex) is generated in the apparatus by a recirculated lqiuid quantity from a secondary flotation apparatus. In the core of the rotary flow the gas quantity (air) is collected and removed through a removal pipe. Consequently, the foamed liquid from the foam duct of the primary flotation stage which is pumped to the secondary flotation stage contains small shares of gas relative to the total quantity of liquid, thereby allowing the pump to be optimally sized of efficiency and better control of the system.

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Patent Owner(s)

Patent OwnerAddress
J M VOITH GMBH D-7920 HEIDENHEIM FEDERAL REPUBLIC OF GERMANY A CORP OF GERMANYNot Provided

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dorflinger, Hans-Dieter Heidenheim, DE 13 131
Schweiss, Peter Langenau, DE 14 109

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