US3193185A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compressor blading
Assignee: General Electric Co
•
Filing: 1962-10-29
•
Granted: 1965-07-06
•
Expires: 1982-10-29
Abstract
No abstract record available.
Inventors
- 👤 John R Erwin
- 👤 Jr Leroy H Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:18
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/66; F04D29/68; F04D29/681; F01; F01D; F01D5/00; F01D5/12; F01D5/14; F01D5/141; F01D5/145; F04D29/26; F04D29/32; F04D29/321; F04D29/324; F04D29/38; F04D29/384; Y; Y02; Y02T; Y02T50/00; Y02T50/60; Y10; Y10S; Y10S415/00; Y10S415/914
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A ROTOR HAVING A HUB FORMING AN INNER WALL MEMBER, A CASING FORMING AN OUTER WALL MEMBER, A ROW OF CAMBERED AIRFOIL BLADE MEMBERS HAVING CONVEX SUCTION AND CONCAVE PRESSURE SURFACES AND BEING ATTACHED TO ONE OF SAID WALL MEMBERS AND EXTENDING RADIALLY TOWARD THE OTHER WALL MEMBER TO FORM AN AXIALLY-EXTENDING AIR PASSAGE THROUGH SAID BLADES WHEREBY A TRANSVERSE SECONDARY FLOW FROM SAID PRESSURE SURFACE OF EACH BLADE TO SAID SUCTION SURFACE
Claim 2
Dependent Claim
73 words
A ROTOR HAVING A HUB FORMING AN INNER WALL MEMBER, A CASING FORMING AN OUTER WALL MEMBER, A ROW OF CAMBERED AIRFOIL BLADE MEMBERS HAVING CONVEX SUCTION AND CONCAVE PRESSURE SURFACES AND BEING ATTACHED TO ONE OF SAID WALL MEMBERS AND EXTENDING RADIALLY TOWARD THE OTHER WALL MEMBER TO FORM AN AXIALLY-EXTENDING AIR PASSAGE THROUGH SAID BLADES WHEREBY A TRANSVERSE SECONDARY FLOW FROM SAID PRESSURE SURFACE OF EACH BLADE TO SAID SUCTION SURFACE
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-05 | 1969-01-04 | 1969-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-05 | 1973-01-04 | 1973-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-05 | 1977-01-04 | 1977-07-06 | $7700.00 | Window Closed / Lapsed |