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.:

US 8434546 B1

PDF
Full Text
Expired
Date of Patent:
May. 07, 2013

Filed:

Mar. 30, 2010
Applicants:

Brad Heitkamp, Minster, OH (US);

Brad Eshleman, Minster, OH (US);

Tyron Grieshop, Maria Stein, OH (US);

Bryan Dahms, Carey, OH (US);

Inventors:

Brad Heitkamp, Minster, OH (US);

Brad Eshleman, Minster, OH (US);

Tyron Grieshop, Maria Stein, OH (US);

Bryan Dahms, Carey, OH (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22D 33/04 (2006.01); B22C 21/14 (2006.01);
U.S. Cl.
CPC ...
Abstract

A device and method for retaining the position of a core in a casting mold, such as a vehicle cylinder head casting mold. The core may be a port core, such as an exhaust port core. A plunger assembly is arranged in the mold to produce a substantially unidirectional pressing force against a supported end of the core. Due to the shape of the core and its orientation and arrangement with respect to the mold, the substantially unidirectional force exerted by the pin also creates a moment that results in an additional pressing force component that is substantially perpendicular to the direction of the pressing force exerted by the pin. This second force component presses contacting ends at the other end of the core into tight contact with an associated molding surface. Consequently, the plunger assembly produces a retention force on the core in two directions.


Find Patent Forward Citations

Heitkamp, Brad. (2013). Casting mold core retention device and method (U.S. Patent No. 8434546). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8434546

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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