US3232104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mass flowmeter
Assignee: FLOTRON Inc
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Filing: 1963-06-24
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Granted: 1966-02-01
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Expires: 1983-06-24
Abstract
No abstract record available.
Inventors
- 👤 Fishman Bernard
- 👤 Ryder Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:12
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/76; G01F1/78; G01F1/785
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
152 words
A MASS FLOWMETER ADAPTED TO MEASURE THE MASS FLOW RATE OF AN EFFECTIVELY INCOMPRESSIBLE FLUID PASSING THERETHROUGH COMPRISING: A CONDUIT, A MEANS FOR DIVIDING THE FLUID FLOW IN SAID CONDUIT INTO TWO PARTS, TWO PAIRS OF FLOW RESTRICTORS, A RESPECTIVE PAIR OF SAID FLOW RESTRICTORS POSITIONED IN EACH OF SAID CONDUIT PARTS IN SPACED APART RELATIONSHIP ALONG THE PATH OF FLOW OF FLUID THEREIN, MEANS FOR PUMPING FLUID FLOWING IN ONE OF SAID PARTS FROM A LOCATION INTERMEDIATE ONE PAIR OF FLOW RESTRICTORS INTO THE OTHER OF SAID PARTS AT A LOCATION INTERMEDIATE THE OTHER PAIR OF SAID FLOW RESTRICTORS AT A GIVEN CONSTANT VOLUMETRIC FLOW RATE, AND MEANS RESPONSIVE TO THE DIFFERENTIAL PRESSURE ACROSS TWO OF SAID FLOW RESTRICTORS FOR PRODUCING A SIGNAL PROPORTIONAL TO THE PRODUCT OF THE DENSITY OF SAID FLUID, THE VOLUMETRIC FLOW RATE OF THE FLUID PASSING THROUGH SAID FLOWMETER AND SAID GIVEN CONSTANT VOLUMETERIC FLOW RATE.
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) | 1969-01-31 | 1969-08-02 | 1970-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-31 | 1973-08-02 | 1974-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-31 | 1977-08-02 | 1978-02-01 | $7700.00 | Window Closed / Lapsed |