US3910563A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for mixing, separating or sorting dry substances or articles
Assignee: IJMI BV
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Filing: 1973-11-02
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Granted: 1975-10-07
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Expires: 1993-11-02
Abstract
Abstract An apparatus for mixing, separating or sorting dry substances or articles, which comprise a horizontal rotary drum having inlet and outlet ends and constructed or disposed in such a way that an underlying descriptive line of the drum when viewed in the direction from the inlet end to the outlet end slopes upwardly for at least a part.
Inventors
- 👤 Bastiaan Vissers
- 👤 Willem Teunissen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:21
CPC Classifications
B; B01; B01F; B01F29/00; B01F29/60; B01F29/63; B01F29/25; B03; B03B; B03B5/00; B03B5/48; B03B5/56; B01F29/40; B01F29/403; B01F29/4033; B01F29/4034
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
134 words
Apparatus for treating dry materials comprising the combination of: an elongate, generally horizontal drum having an inlet end of diverging cross section to define a material-receiving space, and having an outlet end defining an outlet throat of selected diameter, said drum being mounted such that the lowest point of said outlet throat is higher than said material-receiving space whereby dry material disposed in said material-receiving space must be elevated in order to pass through said outlet throat, said drum having a section between its inlet and outlet ends, and leading to said outlet throat, which inclines upwardly to said outlet throat; and means for rotating said drum about its longitudinal axis at a rotational speed causing migration of said dry materials upwardly within said section of the drum to pass out said outlet throat.
Claim 2
Dependent Claim
134 words
Apparatus for treating dry materials comprising the combination of: an elongate, generally horizontal drum having an inlet end of diverging cross section to define a material-receiving space, and having an outlet end defining an outlet throat of selected diameter, said drum being mounted such that the lowest point of said outlet throat is higher than said material-receiving space whereby dry material disposed in said material-receiving space must be elevated in order to pass through said outlet throat, said drum having a section between its inlet and outlet ends, and leading to said outlet throat, which inclines upwardly to said outlet throat; and means for rotating said drum about its longitudinal axis at a rotational speed causing migration of said dry materials upwardly within said section of the drum to pass out said outlet throat.
Claim 3
Dependent Claim
27 words
Apparatus as defined in claim 1 including longitudinally extending ribs on the inner surface of said drum for retarding migration of dry materials to said outlet throat.
Claim 4
Dependent Claim
39 words
The apparatus as claimed in claim 1, wherein said drum is cylindrical and is disposed so as to slope upwardly in respect of an underlying descriptive line viewed in a direction from said inlet end to said outlet end.
Claim 5
Dependent Claim
27 words
The apparatus as claimed in claim 1, wherein said drum is frusto-conical having a diameter decreasing in a direction from said inlet end to said outlet end.
Claim 6
Dependent Claim
20 words
The apparatus as claimed in claim 1, wherein said drum is substantially cylindrical and said section is of frusto-conical configuration.
Claim 7
Dependent Claim
22 words
The apparatus as claimed in claim 1, wherein said drum has an angle of inclination to horizontal between 0* and 20* .
Claim 8
Dependent Claim
22 words
The apparatus as claimed in claim 1, wherein said drum has an axial length which is several times larger than its diameter.
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) | 1978-10-06 | 1979-04-07 | 1979-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-06 | 1983-04-07 | 1983-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-06 | 1987-04-07 | 1987-10-07 | $7700.00 | Window Closed / Lapsed |