Patent US3784323A successfully refreshed from Google Patents.
US3306574A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary fluid flow machine
Assignee: Individual
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Filing: 1965-04-15
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Granted: 1967-02-28
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Expires: 1985-04-15
Abstract
No abstract record available.
Inventors
- 👤 Bachl Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:17
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/02; B; B29; B29D; B29D30/00; B29D30/06; B29D30/38; B29D30/46; F01D1/00; F01D1/02; F01D1/06; F02; F02C; F02C3/00; F02C3/04; F02C3/045; F02C5/00; F02C5/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
IN A FLUID FLOW MACHINE FOR HANDLING AT LEAST ONE WORKING MEDIUM FLUID AND COMPRISING ROTOR WHEEL AND GUIDE STAGES MOUNTED ON A ROTATABLE AXIALLY CENTRALLY DISPOSED SHAFT THEREIN AND WHEREIN WORKING MEDIUM FLUID IS CAUSED TO FLOW IN A SUBSTANTIALLY AXIAL DIRECTION IN THE CENTER ZONE AND SUBSTANTIALLY TANGENTIALLY AT THE OUTER PERIPHERIES OF SAID ROTOR STAGES; THE IMPROVEMENT WHICH COMPRISES A CENTRIPETAL AXIAL FLOW PATH SYSTEM AND A CENTRIFUGAL RADIAL FLOW PATH SYSTEM IN AT LEAST ONE OF SAID ROTOR WHEEL STAGES, SAID FLOW PATH SYSTEMS BEING UNINTERCONNECTED AND INTERSECTING IN THE CENTER ZONE OF SAID ONE ROTOR WHEEL STAGE, SAID WORKING MEDIUM FLUIDS FLOWING THROUGH SAID CENTRIPETAL FLOW PATH SYSTEM AXIALLY IN THE SAME DIRECTION AND THROUGH SAID CENTRIFUGAL FLOW PATH SYSTEM RADIALLY IN OPPOSITE DIRECTIONS WHEREBY IN SAID CENTRIPETAL FLOW PATH SYSTEM THERE IS EFFECTED A WORKING MEDIUM FLUID EXPANSION AND WHEREBY IN SAID CENTRIFUGAL FLOW PATH SYSTEM THERE IS EFFECTED A WORKING MEDIUM FLUID COMPRESSION.
Claim 2
Dependent Claim
160 words
IN A FLUID FLOW MACHINE FOR HANDLING AT LEAST ONE WORKING MEDIUM FLUID AND COMPRISING ROTOR WHEEL AND GUIDE STAGES MOUNTED ON A ROTATABLE AXIALLY CENTRALLY DISPOSED SHAFT THEREIN AND WHEREIN WORKING MEDIUM FLUID IS CAUSED TO FLOW IN A SUBSTANTIALLY AXIAL DIRECTION IN THE CENTER ZONE AND SUBSTANTIALLY TANGENTIALLY AT THE OUTER PERIPHERIES OF SAID ROTOR STAGES; THE IMPROVEMENT WHICH COMPRISES A CENTRIPETAL AXIAL FLOW PATH SYSTEM AND A CENTRIFUGAL RADIAL FLOW PATH SYSTEM IN AT LEAST ONE OF SAID ROTOR WHEEL STAGES, SAID FLOW PATH SYSTEMS BEING UNINTERCONNECTED AND INTERSECTING IN THE CENTER ZONE OF SAID ONE ROTOR WHEEL STAGE, SAID WORKING MEDIUM FLUIDS FLOWING THROUGH SAID CENTRIPETAL FLOW PATH SYSTEM AXIALLY IN THE SAME DIRECTION AND THROUGH SAID CENTRIFUGAL FLOW PATH SYSTEM RADIALLY IN OPPOSITE DIRECTIONS WHEREBY IN SAID CENTRIPETAL FLOW PATH SYSTEM THERE IS EFFECTED A WORKING MEDIUM FLUID EXPANSION AND WHEREBY IN SAID CENTRIFUGAL FLOW PATH SYSTEM THERE IS EFFECTED A WORKING MEDIUM FLUID COMPRESSION.
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) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |