Patent US3588279A successfully refreshed from Google Patents.
US3588279A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shrouded rotor blade structure
Assignee: Westinghouse Electric Corp
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Filing: 1969-09-15
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Granted: 1971-06-28
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Expires: 1989-09-15
Abstract
Abstract A SHROULDED ROTOR BLADE STRUCTURE FOR AN ELASTIC FLUID AXIAL FLOW TURBINE OR COMPRESSOR COMPRISING AN ANNULAR SERIES OF SEGMENTS ARRANGED IN END-TO-END ABUTMENT WITH EACH OTHER. EACH SEGMENT HAS TWO TENONS OF SEMICYLINDRICAL SHAPE, WHICH HEREINAFTER WILL BE CALLED SEMITENONS, ONE ON EACH END, EXTENDING RADIALLY OUTWARD WHEREIN THE FLAT FACES OF THE SEMITENONS ABUT THEIR MATING HALVES ON THE ADJACENT SEGMENTS FORMING TWO-PIECE TENONS. RINGS TIGHTLY ENCIRCLE THE TENON STRUCTURES TO MAINTAIN THE SEMITENONS IN ABUTMENT. THE TENONS ARE DEFORMED LOCKING THE RINGS IN PLACE.
Inventors
- 👤 Ralph E Mcginnis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:12
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/12; F01D5/22; F01D5/225
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |