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:
Mar. 28, 2006
Filed:
Apr. 29, 2004
Michael A. Bland, Pickerington, OH (US);
Michael A. Bland, Pickerington, OH (US);
Amsted Industries Inc., Chicago, IL (US);
Abstract
A method of casting an object, usually a railroad wheel, is provided. A graphite mold having a drag section and a cope section has an opening in the drag section allowing molten metal to be fed upwardly by pressure into the cast object cavity. A stopper pipe assembly extends through centrally located openings in the cope section and the drag section. The hub core seals against an opening in the drag section upon cessation of pouring to keep molten metal in the cavity in the mold. The hub core assembly is comprised of refractory material which the molten metal contacts thereby allowing the reuse of the hub core assembly.