Patent US4058012A successfully refreshed from Google Patents.
US4058012A
Expired / Lapsed
US
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Apparatus for measuring the flow of fine-grained hot solids
Assignee: GEA Group AG
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Filing: 1976-11-01
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Granted: 1977-11-15
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Expires: 1996-11-01
Abstract
Abstract Apparatus for measuring the flow rate of particulate solids such as coal or coke at temperatures of up to about 1000° C. The solids impinge from a predetermined height onto a sensing plate and the impulses imparted thereto are fed to a measuring system. A gastight housing is provided with an inlet for the solids and an intermediate chamber communicates with the inlet and contains a substantially horizontal conveyor for moving the solids to a passage which leads downwardly to a downcomer well disposed below the passage. The downcomer well contains the sensing plate against which the solids impinge.
Inventors
- 👤 Georg Gauch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:09
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/05; G01F1/20; G01F1/28; G01F1/30
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
106 words
Apparatus for measuring the flow rate of fine-grained solids, particularly coal or coke, which are at temperatures up to about 1000° C and impinge from a predetermined height on sensing plate means and impart impulses thereto which are fed to a measuring system, comprising gastight housing means provided with an inlet for the solids, intermediate chamber means adjacent said inlet containing substantially horizontally acting conveyor means for conveying the solids to a passage, downcomer well means disposed below the passage and containing said sensing plate and a bypass conduit for gases connecting the inlet of the housing means and the outlet region of the downcomer well.
Claim 2
Dependent Claim
106 words
Apparatus for measuring the flow rate of fine-grained solids, particularly coal or coke, which are at temperatures up to about 1000° C and impinge from a predetermined height on sensing plate means and impart impulses thereto which are fed to a measuring system, comprising gastight housing means provided with an inlet for the solids, intermediate chamber means adjacent said inlet containing substantially horizontally acting conveyor means for conveying the solids to a passage, downcomer well means disposed below the passage and containing said sensing plate and a bypass conduit for gases connecting the inlet of the housing means and the outlet region of the downcomer well.
Claim 3
Dependent Claim
12 words
Apparatus of claim 1 wherein the conveyor means is a screw conveyor.
Claim 4
Dependent Claim
12 words
Apparatus of claim 1 wherein the conveyor means is a chain conveyor.
Claim 5
Dependent Claim
12 words
Apparatus of claim 1 wherein the housing means has a refractory lining.
Claim 6
Dependent Claim
13 words
Apparatus of claim 1 wherein the measuring system is provided with cooling means.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-11-14 | 1981-05-16 | 1981-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-11-14 | 1985-05-16 | 1985-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-11-14 | 1989-05-16 | 1989-11-15 | $7700.00 | Window Closed / Lapsed |