US3501246A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Axial fluid-flow machine
Assignee: Westinghouse Electric Corp
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Filing: 1967-12-29
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Granted: 1970-03-17
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Expires: 1987-12-29
Abstract
No abstract record available.
Inventors
- 👤 Herbert A Hickey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:49
CPC Classifications
F; F01; F01D; F01D11/00; F01D11/02; F01D11/025; F16; F16J; F16J15/00; F16J15/44; F16J15/441; F16J15/442
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
104 words
THE SEAL MAY BE MADE UP OF A PLURALITY OF ARCUATE COEXTENSIVE SEGMENTS OR STRIPS (FIGS. 2 THROUGH 6), EACH SEGMENT HAVING YIELDABLE LEGS 63 WHICH SNAP INTO A GROOVED OPENING 71 IN THE DIAPHRAGM 25 OR ITS SUPPORT 23 AS REQUIRED. THE SEGMENTS 61 MAY BE FED INTO THE OPENING 71 BY COMPRESSING THE LEGS 63 AND PUSHING THE SECTION RADIALLY INTO THE OPENING 71 WITH A SNAP-IN ACTION. THE SEAL SEGMENTS ARE MOVABLY DISPOSED IN THE OPENING AND ARE URGED OUTWARDLY BY A SPRING 77 INTO FIRM ENGAGEMENT WITH THE LIPS OF THE OPENING SO THAT THE SEAL SEALS ITSELF AGAINST LEAKAGE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-16 | 1973-09-15 | 1974-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-16 | 1977-09-15 | 1978-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-16 | 1981-09-15 | 1982-03-17 | $7700.00 | Window Closed / Lapsed |