US3248944A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbine flow meter
Assignee: Rockwell Manufacturing Co
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Filing: 1963-10-11
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Granted: 1966-05-03
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Expires: 1983-10-11
Abstract
No abstract record available.
Inventors
- 👤 Karlby Henning
- 👤 Winston F Z Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:25
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/05; G01F1/10; G01F1/115; G01F1/1155
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
146 words
A TURBINE METER COMPRISING A HOUSING CONTAINING A ROTATABLY MOUNTED BLADED TURBINE ROTOR ADAPTED TO DRIVE A REGISTERING MEANS OR THE LIKE, MENS FOR DIRECTING MOTIVE FLUID INTO SAID ROTOR BLADES IN AN ANNULAR SOLID STREAM PARALLEL TO THE AXIS OF ROTATION OF SAID ROTOR TO IMPART DRIVE TORQUE TO SAID ROTOR, THE FLUID PASSING THROUGH THE BLADES IMPOSING A VARIABLE FLUID DRAG ON SAID ROTOR, AND COOPERATING MEANS ON THE ROTOR PERIPHERY AND THE SURROUNDING REGION OF SAID HOUSING FOR CIRCUMFERENTIALLY CONFINING FLUID AROUND THE OUTER PERIPHERY OF SAID ROTOR TO APPLY TO SAID ROTOR A FURTHER VARIABLE DRAG, THE COMBINED EFFECT OF SAID DRAGS BING TO PRODUCE A SUBSTANTIALLY CONSTANT NUMBER OF REVOLUTIONS OF THE ROTOR PER UNIT VOLUME OF FLUID FLOWING THROUGH THE ROTOR THROUGHOUT A RANGE OF FLOW RATES EXTENDING INTO THE METER RANGE OF FLOW RATES BETWEEN LAMINAR AND TURBULENT FLOW.
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) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |