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:
May. 13, 2014
Filed:
Sep. 09, 2010
Martin Balliel, Basserdorf, CH;
Christoph Didion, Wettingen, CH;
Thomas Duda, Wettingen, CH;
Marcel Koenig, Wettingen, CH;
Martin Balliel, Basserdorf, CH;
Christoph Didion, Wettingen, CH;
Thomas Duda, Wettingen, CH;
Marcel Koenig, Wettingen, CH;
Alstom Technology Ltd., Baden, CH;
Abstract
A hollow-cast casting is provided, which includes at least one core opening that is caused by the production technique and which has a closure device that closes the core opening. The closure device can be inserted into the core opening axially in relation to the core opening and provides at least one surface region which, in axial projection in relation to the core opening, can be made to abut a surface region of the casting that is facing toward the casting. The surface region lies radially outside a cross-sectional area predetermined by the core opening.