Patent US4142671A successfully refreshed from Google Patents.
US4142671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotor of centrifugal separator
Assignee: Individual
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Filing: 1978-05-09
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Granted: 1979-03-06
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Expires: 1998-05-09
Abstract
Abstract Each one of the plates made as a truncated cone, of which the separator rotor pack is assembled, is provided with radial projections over the entire circumference of the plate outer flange. The plates are arranged in the pack one on top of the other such that said projections are matched over the pack generatrices. The shape and dimensions of said projections are such as to ensure local overlapping of the axial gap between adjacent plates. Provided between the projections are recesses which, taken together, form a group of channels running parallel with the separator rotor axis and designed for the slowed-down passage of suspension flows being separated, this serving to preclude the washout of the precipitate sliding off the plates into the slime space.
Inventors
- 👤 Jury F. Ivin
- 👤 Boris P. Shevelin
- 👤 Vasily I. Sokolov
- 👤 Arkady N. Levischev
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:33
CPC Classifications
B; B04; B04B; B04B1/00; B04B1/04; B04B1/08; B04B7/00; B04B7/08; B04B7/12; B04B7/14
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
218 words
A rotor of a centrifugal separator for separating liquid suspensions and emulsions, comprising: a central rotary drum with an essentially vertical rotation axis; a pack of separator plates placed axially in said drum, each one of said plates being made as a truncated cone and including an inner flange and an outer flange; cleats extending radially from the inner flange to the outer flange; projections dividing adjacent plates from each other in order to provide between them a gap greater than the height of said cleats; means for delivering a liquid to be separated to the pack of separator plates; means for discharging the resulting separation products; each one of said plates made as a truncated cone being provided with radial projections arranged essentially uniformly over the circumference of said outer flange of the plate such as to form between adjacent projections recesses open into a space defined by the walls of the central drum and the surface of the outer flanges of the plates, the shape and dimensions of said radial projections of the plates being such as to ensure overlapping of the entire axial gap between adjacent plates in the region of said radial projections, groups of said recesses forming channels arranged over the generatrices of the pack of plates parallel with the drum rotation axis.
Claim 2
Dependent Claim
218 words
A rotor of a centrifugal separator for separating liquid suspensions and emulsions, comprising: a central rotary drum with an essentially vertical rotation axis; a pack of separator plates placed axially in said drum, each one of said plates being made as a truncated cone and including an inner flange and an outer flange; cleats extending radially from the inner flange to the outer flange; projections dividing adjacent plates from each other in order to provide between them a gap greater than the height of said cleats; means for delivering a liquid to be separated to the pack of separator plates; means for discharging the resulting separation products; each one of said plates made as a truncated cone being provided with radial projections arranged essentially uniformly over the circumference of said outer flange of the plate such as to form between adjacent projections recesses open into a space defined by the walls of the central drum and the surface of the outer flanges of the plates, the shape and dimensions of said radial projections of the plates being such as to ensure overlapping of the entire axial gap between adjacent plates in the region of said radial projections, groups of said recesses forming channels arranged over the generatrices of the pack of plates parallel with the drum rotation axis.
Claim 3
Dependent Claim
60 words
A rotor of a centrifugal separator, as claimed in claim 1, wherein said radial projections of the plates include superposed spacers, the spacers length being not less than the greatest depth of a recess measured in a radial direction, while the height of projections with the spacers is equal to the axial gap between the outer flanges of adjacent plates.
Claim 4
Dependent Claim
30 words
A rotor of a centrifugal separator, as claimed in claim 1, wherein said superposed spacers of projections of the plates are formed of the outer ends of said radial cleats.
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) | 1982-03-05 | 1982-09-04 | 1983-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-03-05 | 1986-09-04 | 1987-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-03-05 | 1990-09-04 | 1991-03-06 | $7700.00 | Window Closed / Lapsed |