Patent US5286169A successfully refreshed from Google Patents.
US5286169A
Expired / Lapsed
US
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Bucket for the next-to-last stage of a steam turbine
Assignee: General Electric Co
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Filing: 1992-12-15
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Granted: 1994-02-15
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Expires: 2012-12-15
Abstract
Abstract A last-stage steam turbine bucket having an actual and theoretical profile according to Charts II-XVI. The last-stage turbine bucket has a theoretical profile according to Charts I-XVII.
Inventors
- 👤 Cuong V. Dinh
- 👤 Stephen G. Ruggles
- 👤 Chic S. Yang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:18
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/12; F01D5/14; F01D5/148; Y; Y10; Y10S; Y10S416/00; Y10S416/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
14 words
A bucket for a steam turbine having a profile in accordance with Charts II-XVI.
Claim 2
Dependent Claim
14 words
A bucket for a steam turbine having a profile in accordance with Charts II-XVI.
Claim 3
Dependent Claim
14 words
A bucket for a steam turbine having a profile in accordance with Charts I-XVII.
Claim 4
Dependent Claim
14 words
A bucket for a steam turbine having a profile in accordance with Charts I-XVII.
References Cited (Backward Citations)
CA516440A
Cited
DE1940583A1
Cited
DE2151841A1
Cited
EP0112003A1
Cited
JPH02123301A
Cited
US4900230A
Cited
US5088894A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-02-14 | 1997-08-16 | 1998-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-02-14 | 2001-08-16 | 2002-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-02-14 | 2005-08-16 | 2006-02-15 | $7700.00 | Window Closed / Lapsed |