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:
Nov. 19, 2013
Filed:
Oct. 03, 2006
Nigel Anthony Rhodes, NewBold Verdon, GB;
Ernst Vogt, Remigen, CH;
Nigel Anthony Rhodes, NewBold Verdon, GB;
Ernst Vogt, Remigen, CH;
ALSTOM Technology Ltd., Baden, CH;
Abstract
A leaf seal for sealing a shaft rotating about an axis, in particular in a gas turbine, includes a multiplicity of spaced-apart leaves () which are arranged in a concentric circle around the axis and are fixed in their position by welded connections produced by electron beam welding, the leaves (), with their surfaces, being oriented essentially parallel to the axis. The welded connections of the leaves are improved by the leaves () being designed in such a way and being arranged in the leaf seal in such a way that they abut against one another at the side edges directly or via intermediate spacers () along at least one contact line () extending over a plurality of leaves (), and by the welded connections being designed as welds directed along the at least one contact line () and oriented in axial direction.