Patent · US Active

Hollow-cast casting with a closure device

US8721284B2 · kind B2 · utility

2Cited by

18References

9Claims

0Family size

Assignee

ALSTOM Technology Ltd · CH

Inventors

Martin Balliel · Bassersdorf, CH
Christoph Didion · Wettingen, CH
Thomas Duda · Duisburg, DE
Marcel Koenig · Wettingen, CH

Key dates

Filing date	Sep 9, 2010
Grant date	May 13, 2014
Priority date	—
Expiry date	Sep 9, 2030

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T24/45089
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.