US3347089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous in-line viscometer
Assignee: Individual
•
Filing: 1964-11-09
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Granted: 1967-10-17
•
Expires: 1984-11-09
Abstract
No abstract record available.
Inventors
- 👤 Charles C Perry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:34
CPC Classifications
G; G01; G01N; G01N11/00; G01N11/10; G01N11/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
A VISCOMETER COMPRISING MEANS FORMING A PASSAGE FOR A FLUID TO FLOW IN ONE DIRECTION, TUBULAR STATOR MEANS DISPOSED IN A PORTION OF SAID PASSAGE MEANS IN A SPACED RELATION THEREWITH SO THAT THE AXES OF SAID STATOR MEANS AND SAID PASSAGE MEANS ARE SUBSTANTIALLY PARALLEL AND SO THAT SOME OF THE FLUID FLOWING IN SAID PASSAGE MEANS IN SAID ONE DIRECTION WILL ENTER ONE END OF SAID STATOR MEANS, FLEXURE STRUTS MOUNTING SAID TUBE ON SAID PASSAGE MEANS, MEANS EXTENDING INTO SAID STATOR MEANS FOR APPLYING A TORQUE TO FLUID THEREIN TO THEREBY ROTATE SAID STATOR MEANS AND BEND SAID STRUTS IN A DIRECTION TRANSVERSELY OF SAID PASSAGE MEANS A DISTANCE RELATED TO THE VISCOSITY OF FLUID IN SAID STATOR MEANS, AND DIFFUSER MEANS IN SAID PASSAGE MEANS ADJACENT TO SAID ONE END OF SAID STATOR MEANS PROVIDING FOR LAMINAR FLOW OF FLUID INTO SAID ONE END OF SAID STATOR MEANS.
Claim 2
Dependent Claim
152 words
A VISCOMETER COMPRISING MEANS FORMING A PASSAGE FOR A FLUID TO FLOW IN ONE DIRECTION, TUBULAR STATOR MEANS DISPOSED IN A PORTION OF SAID PASSAGE MEANS IN A SPACED RELATION THEREWITH SO THAT THE AXES OF SAID STATOR MEANS AND SAID PASSAGE MEANS ARE SUBSTANTIALLY PARALLEL AND SO THAT SOME OF THE FLUID FLOWING IN SAID PASSAGE MEANS IN SAID ONE DIRECTION WILL ENTER ONE END OF SAID STATOR MEANS, FLEXURE STRUTS MOUNTING SAID TUBE ON SAID PASSAGE MEANS, MEANS EXTENDING INTO SAID STATOR MEANS FOR APPLYING A TORQUE TO FLUID THEREIN TO THEREBY ROTATE SAID STATOR MEANS AND BEND SAID STRUTS IN A DIRECTION TRANSVERSELY OF SAID PASSAGE MEANS A DISTANCE RELATED TO THE VISCOSITY OF FLUID IN SAID STATOR MEANS, AND DIFFUSER MEANS IN SAID PASSAGE MEANS ADJACENT TO SAID ONE END OF SAID STATOR MEANS PROVIDING FOR LAMINAR FLOW OF FLUID INTO SAID ONE END OF SAID STATOR MEANS.
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) | 1970-10-16 | 1971-04-17 | 1971-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-16 | 1975-04-17 | 1975-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-16 | 1979-04-17 | 1979-10-17 | $7700.00 | Window Closed / Lapsed |