Patent US1854132A successfully refreshed from Google Patents.
US3867033A
Expired / Lapsed
US
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Multi-component flow probe
Assignee: United States Department of the Air Force
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Filing: 1973-06-04
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Granted: 1975-02-18
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Expires: 1993-06-04
Abstract
Abstract A multi-component flow probe for determining the characteristics, such as the presence of voids, in heavily loaded multi-component flows, either columnar or in rotating fluidized beds, is provided by using a wedge-shaped fiber optic rod transmitting light into the flow and detecting the light reflected by the flow through an adjacent wedge-shaped fiber optic rod. The wedge of the rod points upstream the general flow direction. The angle and shape of the point of the wedge of the fiber rods are relatively critical.
Inventors
- 👤 Siegfried H Hasinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:20
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/26; G02B6/262; G01; G01N; G01N21/00; G01N21/84; G01N21/85; G01N21/8507; G01P; G01P13/00; G01P13/02; G01P5/00; G01P5/18; G01P5/20
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
232 words
A multi-component flow probe for examination of multicomponent particle flows having a direction of flow through a confined space comprising: a. a first fiber optic rod, a second fiber optic rod, and a third fiber optic rod having a first end of each of the said rods positioned in line parallel light insulating relationship and formed in a common wedge, the said wedge having an included angle within the range of 25* to 35*, the said point of the said common wedge having a radius from two to four times the average particle radius, and the second ends of the said first, second, and third fiber optic rods having flat polished surfaces substantially perpendicular respectively to their rod axes; b. means for positioning the said common wedge of the said first ends of the said first, second, and third fiber optic rods in the said multi-component flow with the said wedge pointing substantially against the said direction of particle flow, and with the second ends of the said first, second, and third fiber rods exterior to the said confined space; c. a light source communicating with the said second end of the said first fiber optic rod directing light into the said multicomponent flow; and d. means cooperating with the said second ends of the said second and third fiber optic rods for detecting the reflected light from the said multi-component flow.
Claim 2
Dependent Claim
232 words
A multi-component flow probe for examination of multicomponent particle flows having a direction of flow through a confined space comprising: a. a first fiber optic rod, a second fiber optic rod, and a third fiber optic rod having a first end of each of the said rods positioned in line parallel light insulating relationship and formed in a common wedge, the said wedge having an included angle within the range of 25* to 35*, the said point of the said common wedge having a radius from two to four times the average particle radius, and the second ends of the said first, second, and third fiber optic rods having flat polished surfaces substantially perpendicular respectively to their rod axes; b. means for positioning the said common wedge of the said first ends of the said first, second, and third fiber optic rods in the said multi-component flow with the said wedge pointing substantially against the said direction of particle flow, and with the second ends of the said first, second, and third fiber rods exterior to the said confined space; c. a light source communicating with the said second end of the said first fiber optic rod directing light into the said multicomponent flow; and d. means cooperating with the said second ends of the said second and third fiber optic rods for detecting the reflected light from the said multi-component flow.
Claim 3
Dependent Claim
263 words
A multi-component particle flow probe for determining the flow velocity of a multi-component particle flow comprising: a. a first, a second, a third and a fourth fiber optic rod each having a first end and a second end; b. means for light insulating the said first, second, third and fourth fiber optic rods; c. the said first ends of the said first and second fiber optic rods formed in a first common wedge having an included wedge angle from 25* to 35* and with a wedge tip radius approximately equal to the average diameter of the said particle size of the said multi-component flow; d. the said first ends of the said third and fourth fiber rods formed in a second common wedge having an included wedge angle from 25* to 35* and with a wedge tip radius approximately equal to the average diameter of the said particle size of the said multi-component flow; e. means for positIoning the said first and the said second common wedges, a determined distance apart, measured in the direction of the said multi-component flow, with the said first and said second common wedges pointing substantially against the direction of the said flow; f. a light source cooperating with the said second ends of the said first and third fiber optic rods; and g. means having a common time base cooperating with the said second ends of the said second and fourth fiber optic rods for detecting the light reflected from the multi-component flow into the said first ends of the said second and fourth fiber optic rods.
Claim 4
Dependent Claim
263 words
A multi-component particle flow probe for determining the flow velocity of a multi-component particle flow comprising: a. a first, a second, a third and a fourth fiber optic rod each having a first end and a second end; b. means for light insulating the said first, second, third and fourth fiber optic rods; c. the said first ends of the said first and second fiber optic rods formed in a first common wedge having an included wedge angle from 25* to 35* and with a wedge tip radius approximately equal to the average diameter of the said particle size of the said multi-component flow; d. the said first ends of the said third and fourth fiber rods formed in a second common wedge having an included wedge angle from 25* to 35* and with a wedge tip radius approximately equal to the average diameter of the said particle size of the said multi-component flow; e. means for positIoning the said first and the said second common wedges, a determined distance apart, measured in the direction of the said multi-component flow, with the said first and said second common wedges pointing substantially against the direction of the said flow; f. a light source cooperating with the said second ends of the said first and third fiber optic rods; and g. means having a common time base cooperating with the said second ends of the said second and fourth fiber optic rods for detecting the light reflected from the multi-component flow into the said first ends of the said second and fourth fiber optic rods.
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) | 1978-02-17 | 1978-08-19 | 1979-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-17 | 1982-08-19 | 1983-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-17 | 1986-08-19 | 1987-02-18 | $7700.00 | Window Closed / Lapsed |