US3220261A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of determining the loading or mean particle radius of a fluid carrying particulate material
Assignee: Northrop Grumman Guidance and Electronics Co Inc
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Filing: 1962-06-12
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Granted: 1965-11-30
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Expires: 1982-06-12
Abstract
No abstract record available.
Inventors
- 👤 Anthony R Kriebel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:53
CPC Classifications
G; G01; G01N; G01N15/00; G01N15/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
174 words
A METHOD FOR QUANTITATIVELY DETERMINING THE LOADING OF A FLUID CARRYING PARTICULATE MATERIAL WHERE SAID LOADING IS THE RATIO OF THE WEIGHT OF SAID PARTICULATE MATERIAL TO THE WEIGHT OF SAID FLUID FOR A GIVEN VOLUME OF MIXTURE OR FOR DETERMINING THE MEAN PARTICLE RADIUS OF SAID PARTICULATE MATERIAL OR BOTH COMPRISING THE STEPS OF: (A) DEVELOPING A SINGLE SHOCK WAVE WITHIN A FIRST PORTION OF SAID FLUID CARRYING SAID PARTICULATE MATERIAL; (B) MEASURING AT A SECOND PORTION OF SAID FLUID CARRYING SAID PARTICULATE MATERIAL THE GEOMETRIC CONFIGURATION OF A MEASURED WAVE SHAPE OF THE PRESSURE BUILT UP DUE TO THE GENERATION OF SAID SINGLE SHOCK WAVE AGAINST TIME; (C) GENERATING A PLURALITY OF PRESSURE VERSUS TIME WAVE SHAPES, EACH OF WHICH IS DERIVED FROM A PARTICULAR COMBINATION OF LOADING AND MEAN PARTICLE SIZES FOR PARTICULAR MATERIALS AND FLUIDS; (D) STORING SAID PLURALITY OF WAVE SHAPES TO PROVIDE A DICTIONARY OF STORED WAVE SHAPES; (E) COMPARING SAID GEOMETRIC CONFIGURATION OF SAID MEASURED WAVE SHAPE AGAINST SAID STORED WAVE SHAPES TO MAKE THE AFORESAID DETERMINATION.
Claim 2
Independent Claim
174 words
A METHOD FOR QUANTITATIVELY DETERMINING THE LOADING OF A FLUID CARRYING PARTICULATE MATERIAL WHERE SAID LOADING IS THE RATIO OF THE WEIGHT OF SAID PARTICULATE MATERIAL TO THE WEIGHT OF SAID FLUID FOR A GIVEN VOLUME OF MIXTURE OR FOR DETERMINING THE MEAN PARTICLE RADIUS OF SAID PARTICULATE MATERIAL OR BOTH COMPRISING THE STEPS OF: (A) DEVELOPING A SINGLE SHOCK WAVE WITHIN A FIRST PORTION OF SAID FLUID CARRYING SAID PARTICULATE MATERIAL; (B) MEASURING AT A SECOND PORTION OF SAID FLUID CARRYING SAID PARTICULATE MATERIAL THE GEOMETRIC CONFIGURATION OF A MEASURED WAVE SHAPE OF THE PRESSURE BUILT UP DUE TO THE GENERATION OF SAID SINGLE SHOCK WAVE AGAINST TIME; (C) GENERATING A PLURALITY OF PRESSURE VERSUS TIME WAVE SHAPES, EACH OF WHICH IS DERIVED FROM A PARTICULAR COMBINATION OF LOADING AND MEAN PARTICLE SIZES FOR PARTICULAR MATERIALS AND FLUIDS; (D) STORING SAID PLURALITY OF WAVE SHAPES TO PROVIDE A DICTIONARY OF STORED WAVE SHAPES; (E) COMPARING SAID GEOMETRIC CONFIGURATION OF SAID MEASURED WAVE SHAPE AGAINST SAID STORED WAVE SHAPES TO MAKE THE AFORESAID DETERMINATION.
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) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |