US3369737A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radial flow machine
Assignee: General Electric Co
•
Filing: 1962-12-10
•
Granted: 1968-02-20
•
Expires: 1982-12-10
Abstract
No abstract record available.
Inventors
- 👤 John R Switzer
- 👤 John R Erwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:30
CPC Classifications
F; F04; F04D; F04D17/00; F04D17/08; F04D17/10; F04D17/12; F04D17/127; F04D21/00; F04D29/00; F04D29/26; F04D29/28; F04D29/284; F04D29/40; F04D29/42; F04D29/44; F04D29/441; F04D29/444
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
A RADIAL OUTFLOW FLUID MACHINE COMPRISING: A ROTOR DISK, A CASING TO DEFINE WITH SAID DISK AN UNOBSTRUCTED CURVED INLET FLUID PASSAGE ALONG THE DISK FACE TO DIRECT FLUID AXIALLY AND THEN RADIALLY OUT ALONG THE DISK, SERIATE MEANS ARRANGED RADIALLY OUTWARD INCLUDING, HIGHLY CAMBERED ROTOR BLADES CARRIED BY SAID DISK TO RECEIVE RADIAL FLOWING FLUID ONLY, SAID DISK AND BLADES ROTATING AS A UNIT IN THE DIRECTION OF CAMBER OF THE BLADES, SAID FLUID PASSAGE CONTRACTING THROUGH SAID ROTOR BLADES, A VANELESS DIFFUSER PASSAGE IN SAID CASING FOR RECEIVING FLUID FROM SAID BLADES, AND A SET OF DIFFUSER VANES IN SAID CASING, WHEREBY THE FLUID FLOW ALONG THE ROTOR DISK IN SUBSTANTIALLY TWO-DIMENSIONAL AND SECONDARY VORTICAL FLOWS IN THE ROTOR BLADES ARE SUBSTANIALLY ELIMINATED.
Claim 2
Dependent Claim
125 words
A RADIAL OUTFLOW FLUID MACHINE COMPRISING: A ROTOR DISK, A CASING TO DEFINE WITH SAID DISK AN UNOBSTRUCTED CURVED INLET FLUID PASSAGE ALONG THE DISK FACE TO DIRECT FLUID AXIALLY AND THEN RADIALLY OUT ALONG THE DISK, SERIATE MEANS ARRANGED RADIALLY OUTWARD INCLUDING, HIGHLY CAMBERED ROTOR BLADES CARRIED BY SAID DISK TO RECEIVE RADIAL FLOWING FLUID ONLY, SAID DISK AND BLADES ROTATING AS A UNIT IN THE DIRECTION OF CAMBER OF THE BLADES, SAID FLUID PASSAGE CONTRACTING THROUGH SAID ROTOR BLADES, A VANELESS DIFFUSER PASSAGE IN SAID CASING FOR RECEIVING FLUID FROM SAID BLADES, AND A SET OF DIFFUSER VANES IN SAID CASING, WHEREBY THE FLUID FLOW ALONG THE ROTOR DISK IN SUBSTANTIALLY TWO-DIMENSIONAL AND SECONDARY VORTICAL FLOWS IN THE ROTOR BLADES ARE SUBSTANIALLY ELIMINATED.
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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) | 1971-02-19 | 1971-08-21 | 1972-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-19 | 1975-08-21 | 1976-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-19 | 1979-08-21 | 1980-02-20 | $7700.00 | Window Closed / Lapsed |