US3127770A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for measuring the output of a pulverulent material suspended ina fluid
Assignee: Institut de Recherches de la Siderurgie Francaise IRSID
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Filing: 1959-02-27
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Granted: 1964-04-07
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Expires: 1979-02-27
Abstract
No abstract record available.
Inventors
- 👤 Allard Marc
- 👤 Trentini Bernard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:50
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/74
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
223 words
A METHOD FOR MEASURING THE THROUGHPUT OF PULVERULENT MATERIAL INTRODUCED AND SUSPENDED IN A CARRIER FLUID FLOWING AT A CONSTANT RATE OF FLOW THROUGH A PREDETERMINED CIRCUIT, CONSISTING IN CAUSING A FIRST PREDETERMINED POINT OF SAID CIRCUIT LOCATED DOWNSTREAM OF THE POINT OF INTRODUCTION OF SAID PULVERULENT MATERIAL TO BE SUBJECTED TO A CONSTANT PRESSURE FOR ANY PREDETERMINED FLUID OUTPUT; CAUSING INDICATION OF THE AMOUNT OF CARRIER FLUID FLOWING THROUGH SAID CIRCUIT AT A SECOND POINT OF SAID CIRCUIT LOCATED UPSTREAM OF SAID POINT OF INTRODUCTION OF SAID PULVERULENT MATERIAL; ADJUSTING AT A THIRD POINT LOCATED UPSTREAM OF SAID SECOND POINT OF SAID CIRCUIT; FLOW OF SAID CARRIER FLUID IN SUCH A MANNER THAT IT FLOWS AT A CONSTANT RATE AT SAID SECOND POINT OF SAID CIRCUIT; CAUSING INDICATION OF THE PRESSURE OF SAID FLUID AT A POINT OF THE CIRCUIT LOCATED BETWEEN SAID THIRD POINT OF SAID CIRCUIT AND SAID POINT OF INTRODUCTION OF SAID PULVERULENT MATERIAL; AND ADJUSTING THE THROUGHPUT OF PULVERULENT MATERIAL IN SAID CARRIER FLUID FLOWING AT A CONSTANT RATE BY APPLICATION TO SAID INDICATED PRESSURE OF AN EXPERIMENTALLY FOUND RELATIONSHIP BETWEEN THE VALUE OF THE THROUGHPUT OF PULVERLENT MATERIAL AND THE INDICATED PRESSURE AT SAID SECOND PREDETERMINED POINTO OF THE CIRCUIT OF SAID FLUID, WHEREBY THE PRESSURE INDICATION CONSTITUTES A MEASURE OF THE THROUGHPUT OF SAID PULVERULENT MATERIAL.
Claim 2
Independent Claim
223 words
A METHOD FOR MEASURING THE THROUGHPUT OF PULVERULENT MATERIAL INTRODUCED AND SUSPENDED IN A CARRIER FLUID FLOWING AT A CONSTANT RATE OF FLOW THROUGH A PREDETERMINED CIRCUIT, CONSISTING IN CAUSING A FIRST PREDETERMINED POINT OF SAID CIRCUIT LOCATED DOWNSTREAM OF THE POINT OF INTRODUCTION OF SAID PULVERULENT MATERIAL TO BE SUBJECTED TO A CONSTANT PRESSURE FOR ANY PREDETERMINED FLUID OUTPUT; CAUSING INDICATION OF THE AMOUNT OF CARRIER FLUID FLOWING THROUGH SAID CIRCUIT AT A SECOND POINT OF SAID CIRCUIT LOCATED UPSTREAM OF SAID POINT OF INTRODUCTION OF SAID PULVERULENT MATERIAL; ADJUSTING AT A THIRD POINT LOCATED UPSTREAM OF SAID SECOND POINT OF SAID CIRCUIT; FLOW OF SAID CARRIER FLUID IN SUCH A MANNER THAT IT FLOWS AT A CONSTANT RATE AT SAID SECOND POINT OF SAID CIRCUIT; CAUSING INDICATION OF THE PRESSURE OF SAID FLUID AT A POINT OF THE CIRCUIT LOCATED BETWEEN SAID THIRD POINT OF SAID CIRCUIT AND SAID POINT OF INTRODUCTION OF SAID PULVERULENT MATERIAL; AND ADJUSTING THE THROUGHPUT OF PULVERULENT MATERIAL IN SAID CARRIER FLUID FLOWING AT A CONSTANT RATE BY APPLICATION TO SAID INDICATED PRESSURE OF AN EXPERIMENTALLY FOUND RELATIONSHIP BETWEEN THE VALUE OF THE THROUGHPUT OF PULVERLENT MATERIAL AND THE INDICATED PRESSURE AT SAID SECOND PREDETERMINED POINTO OF THE CIRCUIT OF SAID FLUID, WHEREBY THE PRESSURE INDICATION CONSTITUTES A MEASURE OF THE THROUGHPUT OF SAID PULVERULENT MATERIAL.
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) | 1967-04-07 | 1967-10-07 | 1968-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-07 | 1971-10-07 | 1972-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-07 | 1975-10-07 | 1976-04-07 | $7700.00 | Window Closed / Lapsed |