US4226532A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for granulometric analysis of particles in fluids
Assignee: Individual
•
Filing: 1978-07-12
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Granted: 1980-10-07
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Expires: 1998-07-12
Abstract
Abstract According to the invention, the device for granulometric analysis of particles contained in fluids comprises a feeding channel and a receiving channel intended for passage of a fluid under investigation. The two channels communicate with each other through a nozzle. The ratio between the diameters of the nozzle and the receiving channel is in the range of 1/4 to 1/7. The receiving channel is provided with transparent windows for passage of a light flux emitted by a lighting means through the fluid in that channel. The device further includes a light-sensitive means to receive light reflected from particles contained in the fluid.
Inventors
- 👤 Viktor A. Berber
- 👤 Evgeny S. Pervushin
- 👤 Khafiz M. Murtazin
- 👤 Vladimir G. Kholin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:45
CPC Classifications
G; G01; G01N; G01N15/00; G01N15/10; G01N15/14; G01N15/1434; G01N15/1456; G01N15/1459; G01N2015/1493
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
223 words
A device for granulometric analysis of particles contained in fluids, comprising: a feeding channel having an inlet and an outlet; a nozzle arranged at said outlet of said feeding channel; a receiving channel having an inlet and an outlet; its inlet communicating through said nozzle with said outlet of said feeding channel; said feeding and receiving channels being intended to contain a fluid pumped therethrough; said receiving channel having aligned windows formed therein for exposing the fluid to a light flux and arranged on opposite sides of the channel; a lighting means whose optical axis is spaced from and extends at an angle to the axis of said windows, said windows being positioned in a portion of said receiving channel closely spaced from said nozzle so that the optical axis passes through fluid flowing in a diverging flow path; a third window formed in one of said channels, intended to receive light reflected from particles contained in the fluid in the diverging flow path; a light-sensitive means whose optical axis extends through the point of intersection of the axis of said nozzle and the optical axis of said lighting means, said light-sensitive means being arranged opposite to said third window; the ratio between the diameters of an outlet of said nozzle and said receiving channel being in the range of 1/4 to 1/7.
Claim 2
Independent Claim
223 words
A device for granulometric analysis of particles contained in fluids, comprising: a feeding channel having an inlet and an outlet; a nozzle arranged at said outlet of said feeding channel; a receiving channel having an inlet and an outlet; its inlet communicating through said nozzle with said outlet of said feeding channel; said feeding and receiving channels being intended to contain a fluid pumped therethrough; said receiving channel having aligned windows formed therein for exposing the fluid to a light flux and arranged on opposite sides of the channel; a lighting means whose optical axis is spaced from and extends at an angle to the axis of said windows, said windows being positioned in a portion of said receiving channel closely spaced from said nozzle so that the optical axis passes through fluid flowing in a diverging flow path; a third window formed in one of said channels, intended to receive light reflected from particles contained in the fluid in the diverging flow path; a light-sensitive means whose optical axis extends through the point of intersection of the axis of said nozzle and the optical axis of said lighting means, said light-sensitive means being arranged opposite to said third window; the ratio between the diameters of an outlet of said nozzle and said receiving channel being in the range of 1/4 to 1/7.
Claim 3
Dependent Claim
54 words
A device as claimed in claim 1, wherein said feeding and receiving channels extend at a perpendicular to each other, said optical axis of said light-sensitive means passing through the axis of said nozzle, and said third window being provided in a wall of said feeding channel, opposite to the outlet of said nozzle.
Claim 4
Dependent Claim
26 words
A device as claimed in claim 2, wherein said feeding and receiving channels and internal surfaces of said nozzle are inclined downward in the downstream direction.
Claim 5
Dependent Claim
23 words
A device as claimed in claim 2, wherein said receiving channel is vertical, its inlet being at a lower level than its outlet.
References Cited (Backward Citations)
US3493304A
Cited
US4110043A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-10-07 | 1984-04-07 | 1984-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-07 | 1988-04-07 | 1988-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-07 | 1992-04-07 | 1992-10-07 | $7700.00 | Window Closed / Lapsed |