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.

Date of Patent:
Feb. 16, 2016

Filed:

Dec. 09, 2013
Applicant:

Dresser-rand Company, Olean, NY (US);

Inventor:

Byron L. Mohr, Olean, NY (US);

Assignee:

Dresser-Rand Company, Olean, NY (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22D 25/02 (2006.01); B22C 9/02 (2006.01); B22D 19/16 (2006.01);
U.S. Cl.
CPC ...
B22D 19/16 (2013.01); B22C 9/02 (2013.01);
Abstract

A method for protecting a turbomachine from corrosion may include creating a first sand mold in a drag of a casting flask, coupling a cope of the casting flask to the drag, removing the runner pin and the at least one riser pin from the cope to expose a runner and at least one riser, respectively, and pouring a molten first material in the runner to cast a first component of the turbomachine. The method may further include removing the first sand mold, creating a second sand mold utilizing the first component in the drag, coupling the cope to the drag, removing the runner pin and the at least one riser pin from the cope to expose a runner and at least one riser, respectively, and pouring a molten second material in the runner to cast a second component of the turbomachine integral with the first component.


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