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:
Jul. 08, 1986
Filed:
Jul. 26, 1984
Applicant:
Inventor:
Francis V Bailey, Racine, WI (US);
Assignee:
Outboard Marine Corporation, Waukegan, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22D / ;
U.S. Cl.
CPC ...
164137 ; 164364 ; 164412 ;
Abstract
A disposable sprue cup for use in a metal casting process using a mold pattern embedded in unbound process sand having a grain size, the disposable sprue cup being made of bonded sand having a grain size substantially equal to the grain size of the process sand and having a binder that breaks down under the heat of resident metal remaining in the cup after the casting process is completed.