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:
Jan. 23, 2007
Filed:
Sep. 10, 2003
John R. Grassi, Kennesaw, GA (US);
John Campbell, Wast Malvern, GB;
George W. Kuhlman, Coral Springs, FL (US);
John R. Grassi, Kennesaw, GA (US);
John Campbell, Wast Malvern, GB;
George W. Kuhlman, Coral Springs, FL (US);
Alotech Ltd. LLC, Kennesaw, GA (US);
Abstract
A mold for the casting of metals including an aggregate comprising a refractory particulate material and a soluble binder which provides for minimal heat transfer between the mold and the molten metal during filling. The aggregate preferably includes at least a proportion of particulate material having a heat diffusivity at least as low as silica sand to reduce the chilling effect of the mold. The mold is removed from the casting the action of a solvent, which simultaneously cools and solidifies the casting at a maximum rate. Processes for forming the mold and the casting of metals using the mold are also disclosed.