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:
Jan. 13, 2004
Filed:
May. 30, 2001
Applicant:
Inventor:
Lawrence E. Gebhart, Clayton, OH (US);
Assignee:
Faraday Technology Marketing Group, LLC, Troy, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25D 1/00 ; B23H 9/00 ; B23H 3/00 ;
U.S. Cl.
CPC ...
C25D 1/00 ; B23H 9/00 ; B23H 3/00 ;
Abstract
A sacrificial core ( ) defining a cavity in a metallic or non-metallic shaped article of manufacture, e.g., a casting ( ), is made from a metal that can be electrolytically dissolved. The sacrificial core ( ) is removed from the article ( ) by electrochemical machining. The sacrificial core ( ) may be a hollow shell ( ) incorporating an integral electrode ( ) within the shell and electrically insulated from the shell.