Patent US3224271A successfully refreshed from Google Patents.
US3224271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mass flow meter using difference between torques
Assignee: Honeywell Inc
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Filing: 1962-06-12
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Granted: 1965-12-21
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Expires: 1982-06-12
Abstract
No abstract record available.
Inventors
- 👤 Ichihara Tatsuya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:54
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/76; G01F1/78; G01F1/80
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A MASS FLOW METER FOR A FLUID FLOWING A LONG A PATH, COMPRISING A PAIR OF BLADED VANE MEMBERS, EACH OF WHICH IS MOUNED FOR ROTATION ABOUT AN AXIS PERPENDICULAR TO THE DIRECTION OF THE FLOW OF THE FLUID ALONG THE PATH, MOTOR MEANS FOR ROTATING BOTH OF SAID MEMBERS ABOUT THEIR AXES AT SUBSTANTIALLY THE SAME SPEED, ONE OF SAID MEMBERS BEING ONLY PARTIALLY IMMERSED IN THE FLUID FLOWING ALONG THE PATH IN SUCH A MANNER THAT SAID BLADES AT SAID ONE MEMBER WHICH ARE IN CONTACT WITH THE FLUID FLOWING ALONG THE PATH
Claim 2
Dependent Claim
95 words
A MASS FLOW METER FOR A FLUID FLOWING A LONG A PATH, COMPRISING A PAIR OF BLADED VANE MEMBERS, EACH OF WHICH IS MOUNED FOR ROTATION ABOUT AN AXIS PERPENDICULAR TO THE DIRECTION OF THE FLOW OF THE FLUID ALONG THE PATH, MOTOR MEANS FOR ROTATING BOTH OF SAID MEMBERS ABOUT THEIR AXES AT SUBSTANTIALLY THE SAME SPEED, ONE OF SAID MEMBERS BEING ONLY PARTIALLY IMMERSED IN THE FLUID FLOWING ALONG THE PATH IN SUCH A MANNER THAT SAID BLADES AT SAID ONE MEMBER WHICH ARE IN CONTACT WITH THE FLUID FLOWING ALONG THE PATH
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) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |