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. 14, 1992
Filed:
Sep. 18, 1991
Applicant:
Inventor:
Jerry E Bafford, Decatur, IL (US);
Assignee:
Wagner Castings Company, Decatur, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22D / ;
U.S. Cl.
CPC ...
164112 ; 164 98 ;
Abstract
The invention is a method of forming a passage haing a predetermined linear or non-linear shape in a ferrous casting, comprising four steps. First, a tube of a material compatible with the ferrous casting is secured to a generally cylindrical supporting ring to form a tube-containing ring. Second, this tube-containing ring is placed in a recess within a mold for the ferrous casting. Third, molten metal is poured into the mold to form the casting. Finally, the completed ferrous casting is removed from the mold when the molten metal has solidified.