Featured patents

Flow Control Device
US 08828310 B2, Sept. 9, 2014, Gaseous treating material, Tim Hedley et al. / Refractory Intellectual Property GmbH & Co KG (Vienna, AT)
A stopper rod comprising:…

Method for the Production of a Refractory Filter
US 08802003 B2, Aug. 12, 2014, At discharge outlet, Mario Arruda et al. / Foseco International Limited (Derbyshire, GB)
A method for the production of a closed edge refractory foam filter, comprising:—…

Heat Treatment Furnace
US 08865058 B2, Oct. 21, 2014, With means to cool treating means, Paul D. DeMint et al. / Consolidated Nuclear Security, LLC (Reston, US)
A heat treatment furnace for heat treating a workpiece, the furnace comprising:…

Apparatus for Metal Cutting and Welding
US 08679399 B2, March 25, 2014, With waste entrapping fluid, David Byron et al.
A device for cutting or welding metal, the device comprising:…

Hopper and Reduction Device Using the Same
US 08623269 B2, Jan. 7, 2014, By means applying heat to work, e.g., furnace, Qun Chen et al. / Tsinghua University (Beijing, CN)
A reduction device for refining a material using thermal reduction comprising:…

Furnace Refractory Brick Hearth Tap Hole
US 08574488 B2, Nov. 5, 2013, With means allowing for expansion, Allan MacRae
An improved tap hole for a downwardly dished hearth brick in a compressed brick…

Flow Control Apparatus for Molten Metal
US 08580186 B2, Nov. 12, 2013, With trough-shaped outlet, e.g., runner, John Steven Tingey et al. / Novelis Inc. (Toronto, CA)
A flow control apparatus for control of molten metal flow, said apparatus…

Resident Measurement System for Charge Level of Blast Furnace
US 08568652 B2, Oct. 29, 2013, With Recording, Indicating, Inspection or Measuring Means, Shan-Wen Du et al. / China Steel Corporation (Kaohsiung, TW)
A resident measurement system for a charge level of a blast furnace, disposed…

Reducing Furnace and Apparatus for Manufacturing Molten Iron Comprising the Same
US 08540930 B2, Sept. 24, 2013, With means for moving solid material to or through heating zone, Suk-Kwang Jung et al. / POSCO (Pohang, KR)
A reduction furnace for reducing an iron-containing material used…

Rotary Degassers and Components Therefor
US 08524146 B2, Sept. 3, 2013, Gaseous treating material, Paul V. Cooper
A rotary degasser for introducing gas into molten metal, the rotary degasser…

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