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:
Nov. 07, 1978
Filed:
Sep. 22, 1977
Applicant:
Inventor:
James E Dore, Ballwin, MO (US);
Assignee:
Swiss Aluminium Ltd., Chippis, CH;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C22B / ;
U.S. Cl.
CPC ...
210 69 ; 75 6 / ; 210 71 ;
Abstract
An improved method for the filtration of molten metal for use in the production of castings is disclosed in which a ladling crucible provided with a ceramic foam filter is inserted into a furnace crucible which is filled with molten metal so that the molten metal passes through the filter into the ladling crucible cavity so that oxide films and other impurities are removed prior to ladling.