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. 14, 1999
Filed:
Apr. 11, 1997
Applicant:
Inventors:
Lian Soon Tan, Dublin, OH (US);
Teresa Ann DeLong, West Mansfield, OH (US);
Ruth Ann Bambauer, Columbus, OH (US);
Assignee:
Ashland Inc., Russell, KY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B22C / ; B22C / ;
U.S. Cl.
CPC ...
164 34 ; 164 45 ; 164249 ; 106 3822 ;
Abstract
The coated pattern is formed from a consumable pattern, preferably polystyrene, and is adapted to be decomposed and replaced by molten metal to form a casting. The improved coating is the dried residue of an aqueous coating formed from water, refractory particles, and from between about 25 wt-% and 75 wt-% organic polymer on a non-volatile solids basis (i.e., dry film basis). Lustrous carbon is reduced when casting iron.