Light weight shroud fin for a rotor blade

US8967972B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8967972-B2
Application numberUS-201213668136-A
CountryUS
Kind codeB2
Filing dateNov 2, 2012
Priority dateMay 5, 2010
Publication dateMar 3, 2015
Grant dateMar 3, 2015

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

A turbine blade is provided and includes a tip end carrying a shroud and at least one fin, which extends radially away from the shroud. The fin includes a first sidewall and a second sidewall, which are spaced apart, arranged parallel to each other, and are connected to the shroud, and a cutting edge, which is connected to the first and second sidewalls. The cutting edge thereby creates a hollow space between the sidewalls, the shroud, and the cutting edge, and further extends radially away from the first and second sidewalls. Also provided is a method of manufacturing the blade by casting the blade as single piece with the hollow fin or by forging the blade; and machining the fin to create the first and second sidewalls and cutting edge thereby opening the hollow space between said sidewalls and the cutting edge.

First claim

Opening claim text (preview).

What is claimed is: 1. A turbine blade comprising a tip end carrying a shroud and at least one fin, which extends radially away from the shroud, the fin comprises a first sidewall and a second sidewall, which are spaced apart from each other, and are connected to the shroud, and a cutting edge, which is connected to the first and second sidewalls, said cutting edge thereby creating a hollow space between the sidewalls, the shroud, and the cutting edge, and further extends radially…

Assignees

Inventors

Classifications

  • Mechanical Engineering · mapped topic

  • F01D5/225Primary

    Mechanical Engineering · mapped topic

  • Cross-Sectional Technologies · mapped topic

Patent family

Related publications grouped by family.

External sources

Next steps

Free tools are coming soon. Tell us what you want to track and we'll notify you.

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US8967972B2 cover?
A turbine blade is provided and includes a tip end carrying a shroud and at least one fin, which extends radially away from the shroud. The fin includes a first sidewall and a second sidewall, which are spaced apart, arranged parallel to each other, and are connected to the shroud, and a cutting edge, which is connected to the first and second sidewalls. The cutting edge thereby creates a hollo…
Who is the assignee on this patent?
Alstom Technology Ltd, Alstom Technology Ltd
What technology area does this patent fall under?
Primary CPC classification F01D5/225. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Mar 03 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).