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:
Jun. 30, 1998
Filed:
Aug. 05, 1994
Applicant:
Inventors:
Gary Dale Helgesen, Romulus, MI (US);
Robert Gordon Rentschler, Dearborn, MI (US);
Thomas John Heater, Milford, MI (US);
Assignee:
Ford Global Technologies, Inc., Dearborn, MI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B22C / ; B22D / ;
U.S. Cl.
CPC ...
164-9 ; 164 11 ; 164137 ; 164332 ; 164333 ; 164368 ; 164369 ;
Abstract
A plurality of inter-connected cores includes barrel cores (18). Bore liners (10) surround the barrel cores (18) and are fixed in relation thereto. A cylinder block mold core package (22) is assembled from the cores (14, 24, 26, 28). The liners (10) are heated while they are within the cylinder block mold core package (22) by induction heating. To prevent migration, a mechanical interlock is provided between each liner (10) and its associated barrel core (18).