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. 01, 1987
Filed:
Aug. 15, 1985
Applicant:
Inventors:
Wolfhart Rieger, Buch, CH;
Ludwig Gauckler, Schaffhausen, CH;
Albert Maurer, Thayngen, CH;
Konrad Kampfer, Thayngen, CH;
Assignee:
Swiss Aluminium Ltd., Chippis, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210496 ; 2105101 ;
Abstract
Filter medium in the form of a stable porous body of granules of spherical form bonded together by a different phase or by sintering. Preferably hollow spherical granules of corundum are manufactured into filter media in plate form. The filter media are employed for filtration of molten metal preferably aluminum.