Patent US3087325A successfully refreshed from Google Patents.
US3087325A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gyroscopic mass flowmeters
Assignee: Individual
•
Filing: 1961-08-07
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Granted: 1963-04-30
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Expires: 1981-08-07
Abstract
No abstract record available.
Inventors
- 👤 Roth Wilfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:45
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/76; G01F1/78; G01F1/80; G01F1/84; G01F1/8409; G01F1/8413; G01F1/8422; G01F1/8427; G01F1/8431; G01F1/845; G01F1/8454; G01F1/8468; G01F1/8481
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
IN A GYROSCOPIC MASS FLOWMETER INCLUDING A CURVED FLUID CONDUIT STRUCTURE AND INLET AND OUTLET CONDUIT SECTIONS CONNECTED THEREWITH, MEANS FOR OSCILLATING THE CURVED CONDUIT STRUCTURE ABOUT A DRIVE AXIS TO PRODUCE GYROSCOPIC COUPLES ABOUT A TORQUE AXIS VARYING WITH FLUID FLOW IN THE CONDUIT, TRANSDUCER MEANS RESPONSIVE TO MOVEMENT OF THE CURVED CONDUIT STRUCTURE ABOUT THE TORQUE AXIS FOR PRODUCING AN ALTERNATING SIGNAL VARYING WITH FLUID FLOW, AND MEANS FOR UTILIZING SAID SIGNAL TO PRODUCE AN INDICATION OF FLUID FLOW; MEANS FOR CHECKING THE OPERATION OF THE FLOWMETER WHICH COMPRISES MEANS FOR PROVIDING AN UNBALANCED MASS OF THE CURVED FLUID CONDUIT STRUCTURE ABOUT THE DRIVE AND TORQUE AXES TO PRODUCE AN ALTERNATING SIGNAL COMPONENT FROM THE TRANSDUCER MEANS IN PHASE QUADRATURE WITH THE SIGNAL CORRESPONDING TO FLUID FLOW, AND PHASESENSITIVE MEANS RESPONSIVE SUBSTANTIALLY ONLY TO SAID QUADRATURE COMPONENT DURING SAID CHECKING.
Claim 2
Dependent Claim
142 words
IN A GYROSCOPIC MASS FLOWMETER INCLUDING A CURVED FLUID CONDUIT STRUCTURE AND INLET AND OUTLET CONDUIT SECTIONS CONNECTED THEREWITH, MEANS FOR OSCILLATING THE CURVED CONDUIT STRUCTURE ABOUT A DRIVE AXIS TO PRODUCE GYROSCOPIC COUPLES ABOUT A TORQUE AXIS VARYING WITH FLUID FLOW IN THE CONDUIT, TRANSDUCER MEANS RESPONSIVE TO MOVEMENT OF THE CURVED CONDUIT STRUCTURE ABOUT THE TORQUE AXIS FOR PRODUCING AN ALTERNATING SIGNAL VARYING WITH FLUID FLOW, AND MEANS FOR UTILIZING SAID SIGNAL TO PRODUCE AN INDICATION OF FLUID FLOW; MEANS FOR CHECKING THE OPERATION OF THE FLOWMETER WHICH COMPRISES MEANS FOR PROVIDING AN UNBALANCED MASS OF THE CURVED FLUID CONDUIT STRUCTURE ABOUT THE DRIVE AND TORQUE AXES TO PRODUCE AN ALTERNATING SIGNAL COMPONENT FROM THE TRANSDUCER MEANS IN PHASE QUADRATURE WITH THE SIGNAL CORRESPONDING TO FLUID FLOW, AND PHASESENSITIVE MEANS RESPONSIVE SUBSTANTIALLY ONLY TO SAID QUADRATURE COMPONENT DURING SAID CHECKING.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-29 | 1966-10-29 | 1967-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-29 | 1970-10-29 | 1971-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-29 | 1974-10-29 | 1975-04-30 | $7700.00 | Window Closed / Lapsed |