Patent US3215185A successfully refreshed from Google Patents.
US3215185A
Expired / Lapsed
US
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Fluid density and viscosity sensor and control
Assignee: Ambac International Corp
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Filing: 1963-04-02
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Granted: 1965-11-02
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Expires: 1983-04-02
Abstract
No abstract record available.
Inventors
- 👤 Robert J Black
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:05
CPC Classifications
F; F02; F02M; F02M1/00; F02M2700/00; F02M2700/43; F02M2700/4302; F02M2700/4314; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2708; Y10T137/7722; Y10T137/7736
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
A FLUID DENSITY AND VISCOSITY SENSOR AND CONTROL COMPRISING A SWIRL-TYPE METERING JET ASSEMBLY, CONDUIT MEANS LEADING INTO SAID SWIRL-TYPE METERING JET ASSEMBLY, RESTRICTOR MEANS FOR SUPPLYING FLUID TO SAID CONDUIT MEANS AND FOR MAINTAING THE PRESSURE OF SAID FLUID BELOW THE CRITICAL PRESSURE OF SAID SWIRL-TYPE METERING JET ASSEMBLY, SAID METERING JET ASSEMBLY INCLUDING A METERING ORIFICE, A SWIRL CHAMBER OPENING INTO SAID METERING ORIFICE, MEANS FOR INCLUDING A SWIRL OF FLUID FLOWING THROUGH SAID SWIRL CHAMBER AND METERING ORIFICE, AND CONTROL MEANS FOR SENSING THE PRESSURE OF THE FLUID AT THE INLET TO SAID SWIRLTYPE METERING JET ASSEMBLY, THE PRESSURE AT THE INLET VARYING WITH THE FLOW OF FLUID THROUGH SAID ASSEMBLY AND THE DENSITY AND VISOCITY OF THE FLUID, THE FLOW BEING DEPENDENT UPON THE DENSITY AND VISOCITY OF THE FLUID.
Claim 2
Dependent Claim
134 words
A FLUID DENSITY AND VISCOSITY SENSOR AND CONTROL COMPRISING A SWIRL-TYPE METERING JET ASSEMBLY, CONDUIT MEANS LEADING INTO SAID SWIRL-TYPE METERING JET ASSEMBLY, RESTRICTOR MEANS FOR SUPPLYING FLUID TO SAID CONDUIT MEANS AND FOR MAINTAING THE PRESSURE OF SAID FLUID BELOW THE CRITICAL PRESSURE OF SAID SWIRL-TYPE METERING JET ASSEMBLY, SAID METERING JET ASSEMBLY INCLUDING A METERING ORIFICE, A SWIRL CHAMBER OPENING INTO SAID METERING ORIFICE, MEANS FOR INCLUDING A SWIRL OF FLUID FLOWING THROUGH SAID SWIRL CHAMBER AND METERING ORIFICE, AND CONTROL MEANS FOR SENSING THE PRESSURE OF THE FLUID AT THE INLET TO SAID SWIRLTYPE METERING JET ASSEMBLY, THE PRESSURE AT THE INLET VARYING WITH THE FLOW OF FLUID THROUGH SAID ASSEMBLY AND THE DENSITY AND VISOCITY OF THE FLUID, THE FLOW BEING DEPENDENT UPON THE DENSITY AND VISOCITY OF THE FLUID.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |