US3241366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid-flow meter
Assignee: Rockwell Manufacturing Co
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Filing: 1958-01-16
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Granted: 1966-03-22
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Expires: 1978-01-16
Abstract
No abstract record available.
Inventors
- 👤 Allen Eric Harold William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:18
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/05; G01F1/10; G01F1/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
202 words
A FLUID FLOW METER COMPRISING A FLOW CONDUIT, A BLADED MEASURING ROTOR MOUNTED IN THE CONDUIT WITH ITS BLADES INCLINED IN ONE DIRECTION AND BEING ADAPTED TO BE ROTATED BY FLUID FLOW THROUGH SAID CONDUIT, A FLUID FLOW INDICATOR, MEANS TRANSMITTING ROTATION OF THE MEASURING ROTOR TO THE INDICATOR, A BLADED COMPENSATING ROTOR MOUNTED IN THE CONDUIT UPSTREAM OF THE MEASURING ROTOR WITH ITS BLADES INCLINED IN THE OPPOSITE DIRECTION SAID BEING FREE MECHANICAL DRIVING CONNECTION WITH SAID MEASURING ROTOR SO AS TO BE ROTATABLE RELATIVELY TO SAID MEASURING ROTOR, SAID COMPENSATING ROTOR BEING POSITIONED ADJACENT SAID MEASURING ROTOR WHEREBY FLUID DISCHARGED FROM SAID COMPENSATING ROTOR IS DIRECTED BY SAID COMPENSATING ROTOR BLADES TO FLOW DIRECTLY TO AND IMPINGE UPON SAID MEASURING ROTOR BLADES, THE BLADES OF THE COMPENSATING ROTOR, BEING DISPOSED TO ROTATE SAID COMPENSATING ROTOR IN A DIRECTION OPPOSITE TO THE DIRECTION OF THE ROTATION OF SAID MEASURING ROTOR AND MEANS TO RESTRAIN THE FREE ROTATION OF THE COMPENSATING ROTOR WHEREBY ITS INCLINED BLADES REACT TO DIRECT THE FLUID FLOW AGAINST THE BLADES OF THE MEASURING ROTOR AT AN ANGLE TO THE DIRECTION OF FLOW THROUGH THE CONDUIT WITH INCREASING IMPACT AS THE RATE OF FLOW THROUGH THE CONDUIT DECREASES.
Claim 2
Dependent Claim
202 words
A FLUID FLOW METER COMPRISING A FLOW CONDUIT, A BLADED MEASURING ROTOR MOUNTED IN THE CONDUIT WITH ITS BLADES INCLINED IN ONE DIRECTION AND BEING ADAPTED TO BE ROTATED BY FLUID FLOW THROUGH SAID CONDUIT, A FLUID FLOW INDICATOR, MEANS TRANSMITTING ROTATION OF THE MEASURING ROTOR TO THE INDICATOR, A BLADED COMPENSATING ROTOR MOUNTED IN THE CONDUIT UPSTREAM OF THE MEASURING ROTOR WITH ITS BLADES INCLINED IN THE OPPOSITE DIRECTION SAID BEING FREE MECHANICAL DRIVING CONNECTION WITH SAID MEASURING ROTOR SO AS TO BE ROTATABLE RELATIVELY TO SAID MEASURING ROTOR, SAID COMPENSATING ROTOR BEING POSITIONED ADJACENT SAID MEASURING ROTOR WHEREBY FLUID DISCHARGED FROM SAID COMPENSATING ROTOR IS DIRECTED BY SAID COMPENSATING ROTOR BLADES TO FLOW DIRECTLY TO AND IMPINGE UPON SAID MEASURING ROTOR BLADES, THE BLADES OF THE COMPENSATING ROTOR, BEING DISPOSED TO ROTATE SAID COMPENSATING ROTOR IN A DIRECTION OPPOSITE TO THE DIRECTION OF THE ROTATION OF SAID MEASURING ROTOR AND MEANS TO RESTRAIN THE FREE ROTATION OF THE COMPENSATING ROTOR WHEREBY ITS INCLINED BLADES REACT TO DIRECT THE FLUID FLOW AGAINST THE BLADES OF THE MEASURING ROTOR AT AN ANGLE TO THE DIRECTION OF FLOW THROUGH THE CONDUIT WITH INCREASING IMPACT AS THE RATE OF FLOW THROUGH THE CONDUIT DECREASES.
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) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |