US3595091A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for determining the grain structure of dispersed solid materials and for determining the instantaneous solid material content of flowing gases
Assignee: Individual
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Filing: 1969-11-24
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Granted: 1971-07-27
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Expires: 1989-11-24
Abstract
Abstract A method of and device for determining the grain structure of dispersed solid materials and for determining the momentary contents in solid particles in a gas flow, according to which the solid particle-gas flow is in a measuring nozzle subjected to a change in velocity, and in which the pressure differences inherent to the different behavior of the solid particles in said gas flow during the change in the velocity of the gas flow are measured over the length of the measuring nozzle whereupon from the course in the change of pressure over the length of the nozzle the grain structure of the dispersed solid particles and the momentary contents in solid particles are calculated.
Inventors
- 👤 Paul Bernutat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:40
CPC Classifications
G; G01; G01N; G01N15/00; G01N15/02; G01N15/0255
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
98 words
A method according to claim 1, which includes the steps of intermixing the solid particles intended for the solid particle gas flow prior to the gas flow entering said measuring nozzle and at such a distance from the nozzle inlet that a substantially uniform velocity of the solid particle-gas flow will be assured at said inlet, and measuring the pressure differences of said solid particle-gas flow over the length of the measuring nozzle on the basis of differential pressures measured between the inlet of said measuring nozzle and points thereof which are differently spaced from said nozzle inlet.
Claim 2
Dependent Claim
22 words
A method according to claim 2, which includes automatically feeding the values of the measured differenTial pressures into a digital calculating machine.
Claim 3
Independent Claim
67 words
An apparatus for use in connection with the determination of the grain structure of solid particles dispersed in a gas flow, which includes a pipe having a first axial bore and a subsequent second axial bore forming a nozzle bore, and radial bores branching off from said nozzle bore and also at the inlet and outlet of said nozzle bore for connection with differential pressure measuring devices.
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) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |