US3173604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixed flow turbo machine
Assignee: General Dynamics Corp
•
Filing: 1962-02-15
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Granted: 1965-03-16
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Expires: 1982-02-15
Abstract
No abstract record available.
Inventors
- 👤 Herman E Sheets
- 👤 Lawrence Kurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:27
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/12; F01D5/14; F01D5/141; F01D5/146; F01D5/142; F04; F04D; F04D29/00; F04D29/40; F04D29/52; F04D29/54; F04D29/541; F04D29/542; F04D29/544; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A TURBO-MACHINE OF THE MIXED FLOW TYPE, COMPRISING: A SUBSTANTIALLY CYLINDRICAL HOUSING, A CASING IN SAID HOUSING SUBSTANTIALLY CO-AXIAL THEREWITH, AN IMPELLER IN SAID HOUSING MOUNTED FOR ROTATION ON SAID CASING, SAID IMPELLER INCLUDING A CONTOURED HUB WITH AT LEAST TWO CAMBERED VANES PROJECTING GENERALLY RADIALLY OUTWARDLY THEREFROM, EACH OF SAID VANES BEING POSITIONED ON SAID IMPELLER SUCH THAT THE HUB DIAMETER AT THE INTERSECTION OF THE HUB AND THE LEADING EDGE OF THE VANE IS SMALLER THAN THE HUB DIAMETER AT THE INTERSECTION OF THE HUB AND THE TRAILING EDGE OF THE SAME VANE, THE ANNULUS AREA BETWEEN THE HUB AND THE HOUSING AT SAID LEADING EDGE INTERSECTION BEING SUBSTANTIALLY GREATER THAN A CORRESPONDING
Claim 2
Dependent Claim
115 words
A TURBO-MACHINE OF THE MIXED FLOW TYPE, COMPRISING: A SUBSTANTIALLY CYLINDRICAL HOUSING, A CASING IN SAID HOUSING SUBSTANTIALLY CO-AXIAL THEREWITH, AN IMPELLER IN SAID HOUSING MOUNTED FOR ROTATION ON SAID CASING, SAID IMPELLER INCLUDING A CONTOURED HUB WITH AT LEAST TWO CAMBERED VANES PROJECTING GENERALLY RADIALLY OUTWARDLY THEREFROM, EACH OF SAID VANES BEING POSITIONED ON SAID IMPELLER SUCH THAT THE HUB DIAMETER AT THE INTERSECTION OF THE HUB AND THE LEADING EDGE OF THE VANE IS SMALLER THAN THE HUB DIAMETER AT THE INTERSECTION OF THE HUB AND THE TRAILING EDGE OF THE SAME VANE, THE ANNULUS AREA BETWEEN THE HUB AND THE HOUSING AT SAID LEADING EDGE INTERSECTION BEING SUBSTANTIALLY GREATER THAN A CORRESPONDING
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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) | 1968-03-15 | 1968-09-14 | 1969-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-15 | 1972-09-14 | 1973-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-15 | 1976-09-14 | 1977-03-16 | $7700.00 | Window Closed / Lapsed |