Patent US3325089A successfully refreshed from Google Patents.
US3325089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow machines
Assignee: FCF Ltd A Co OF BRITISH
•
Filing: 1965-02-02
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Granted: 1967-06-13
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Expires: 1985-02-02
Abstract
No abstract record available.
Inventors
- 👤 Vogler Dieter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:43
CPC Classifications
F; F04; F04D; F04D17/00; F04D17/02; F04D17/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A FLOW MACHINE COMPRISING A BLADED CYLINDRICAL ROTOR AND GUIDE MEANS COOPERATING WITH THE ROTOR ON ROTATION THEREOF TO INDUCE A FLOW OF FLUID IN A DIRECTION TRANSVERSE TO THE ROTOR AXIS AND TWICE TRAVERSING THE PATH OF THE ROTATING BLADES OF THE ROTOR, THE GUIDE MEANS COMPRISING A GUIDE BODY SUBTENDING A SMALL ANGLE AT THE ROTOR AXIS AND A GUIDE WALL EXTENDING AROUND THE ROTOR FROM OPPOSITE THE GUIDE BODY AND DEFINING THEREWITH AN OUTLET FROM THE ROTOR, AND AN INLET TO THE ROTOR, SAID INLET HAVING A WIDTH OF THE ORDER OF THE ROTOR DIAMETER; SAID
Claim 2
Dependent Claim
99 words
A FLOW MACHINE COMPRISING A BLADED CYLINDRICAL ROTOR AND GUIDE MEANS COOPERATING WITH THE ROTOR ON ROTATION THEREOF TO INDUCE A FLOW OF FLUID IN A DIRECTION TRANSVERSE TO THE ROTOR AXIS AND TWICE TRAVERSING THE PATH OF THE ROTATING BLADES OF THE ROTOR, THE GUIDE MEANS COMPRISING A GUIDE BODY SUBTENDING A SMALL ANGLE AT THE ROTOR AXIS AND A GUIDE WALL EXTENDING AROUND THE ROTOR FROM OPPOSITE THE GUIDE BODY AND DEFINING THEREWITH AN OUTLET FROM THE ROTOR, AND AN INLET TO THE ROTOR, SAID INLET HAVING A WIDTH OF THE ORDER OF THE ROTOR DIAMETER; SAID
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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) | 1970-06-12 | 1970-12-12 | 1971-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-12 | 1974-12-12 | 1975-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-12 | 1978-12-12 | 1979-06-13 | $7700.00 | Window Closed / Lapsed |