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. 30, 1988
Filed:
May. 08, 1987
Applicant:
Inventors:
Satish S Jhaveri, Oakville, CA;
William R Dunnavant, Columbus, OH (US);
James T Schneider, Dublin, OH (US);
Assignee:
Ashland Oil, Inc., Russell, KY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22C / ;
U.S. Cl.
CPC ...
164526 ; 106 382 ; 523145 ;
Abstract
The subject invention relates to a hot box process for forming foundry shapes. The foundry shapes are formed with a mixture of an aggregate and certain aqueous basic solutions of phenolic resole resins which act as binders. The use of these binders results in foundry shapes which are cured by heating at elevated temperatures without requiring an acid-generating curing catalyst.