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:
Aug. 16, 2005
Filed:
Aug. 22, 2002
Norman E. Peterson, Wyoming, MN (US);
Tracy L. Cain, Forest Lake, MN (US);
Norman E. Peterson, Wyoming, MN (US);
Tracy L. Cain, Forest Lake, MN (US);
Water Gremlin Company, White Bear Lake, MN (US);
Abstract
A mold and a method of casting a part wherein the casting surfaces of the mold including the nooks and crannies of the mold are bounded by pitted mold surfaces with the pitted mold surfaces having surface voids therein that are sufficiently small to prevent the molten metal to enter therein; however, when the molten metal is poured in the mold having the pitted surfaces the molten metal solidifies on top of the pitted surface without entering into the pits in the mold surface, yet at the same time the molten metal flows smoothly over all the mold surfaces including the structural nooks and crannies of the mold to form a cast product that is substantially free of voids and fissures.