The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 21, 2010
Filed:
Feb. 05, 2007
Ron D. Barclay, Summerville, SC (US);
Gary P. Tarcy, Murrysville, PA (US);
Robert B. Hosler, Sarver, PA (US);
Xiangwen Wang, Export, PA (US);
Jay N. Bruggeman, Harrison City, PA (US);
Ron D. Barclay, Summerville, SC (US);
Gary P. Tarcy, Murrysville, PA (US);
Robert B. Hosler, Sarver, PA (US);
Xiangwen Wang, Export, PA (US);
Jay N. Bruggeman, Harrison City, PA (US);
Alcoa Inc., Pittsburgh, PA (US);
Abstract
An electrolysis cell () contains a number of carbon anodes () having top, bottom and side surfaces, operating in molten electrolyte () in an aluminum electrolysis cell (), where gas bubbles () are generated at the anode surfaces and where alumina particles () are added to the top of the molten electrolyte, where the carbon anodes () have one inward slot () passing through the carbon anode () along the longitudinal axisof the carbon anode and also passing through only one front surface () of the carbon anode, where the height () of the slot () is from about 45% to 80% of the anodes thickness and the slotted front surfaces () are disposed toward the center of the electrolysis cell so that generated gas bubbles () are directed to the alumina particles.