US5073177A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotational particle separator
Assignee: Romico Hold AVV
•
Filing: 1990-10-15
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Granted: 1991-12-17
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Expires: 2010-10-15
Abstract
Abstract A rotational separator for separating particulate material from gas includes a housing having a gas inlet and a gas outlet. A centrifuge is rotatably mounted in the housing along a rotation axis extending through the housing. The centrifuge includes a plurality a radially-spaced individual separation channels which extend parallel to each other and parallel to the rotaton axis. The separation channels extend azimuthally about the rotation axis by less than 360° to prevent azimuthal flows greater than 360° about the rotation axis in any of the individual separation channels.
Inventors
- 👤 Jozef J. H. Brouwers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:21
CPC Classifications
B; B04; B04C; B04C9/00; B01; B01D; B01D45/00; B01D45/12; B01D45/14; B04C5/00; B04C5/12; B04C5/13; B04C2009/004; B04C2009/007
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
142 words
A rotational particle separator for separating particulate material having cross-sectional dimensions from about 0.1 micron to about 5 microns from a gas, said separator comprising: a housing having a gas inlet and a gas outlet a centrifuge rotatably mounted in said housing along a rotation axis extending through said housing, said centrifuge including at least ten radially-spaced individual separation channels which extend parallel to each other and parallel to said rotation axis, each of said separation channels having a cross-section along substantially the entire length thereof which extends azimuthally about said rotation axis by less than 360° to prevent azimuthal flows greater than 360° about said rotation axis in any of said individual separation channels and each of said separation channels having a cross-sectional width less than 8 mm; and means for rotating said centrifuge within said housing about said rotation axis.
Claim 2
Dependent Claim
142 words
A rotational particle separator for separating particulate material having cross-sectional dimensions from about 0.1 micron to about 5 microns from a gas, said separator comprising: a housing having a gas inlet and a gas outlet a centrifuge rotatably mounted in said housing along a rotation axis extending through said housing, said centrifuge including at least ten radially-spaced individual separation channels which extend parallel to each other and parallel to said rotation axis, each of said separation channels having a cross-section along substantially the entire length thereof which extends azimuthally about said rotation axis by less than 360° to prevent azimuthal flows greater than 360° about said rotation axis in any of said individual separation channels and each of said separation channels having a cross-sectional width less than 8 mm; and means for rotating said centrifuge within said housing about said rotation axis.
Claim 3
Dependent Claim
159 words
A rotational particle separator for separating particulate material having cross-sectional dimensions from about 0.1 micron to about 5 microns from a gas, said separator comprising: a housing having a gas inlet and a gas outlet; a centrifuge rotatably mounted in said housing along a rotation axis extending through said housing, said centrifuge including at least ten radially-spaced individual separation channels which extend parallel to each other and parallel to said rotation axis, each of said separation channels extending azimuthally about said rotation axis by less than 360° to prevent azimuthal flows greater than 360° about said rotation axis in any of said individual separation channels, each of said separation channels having boundary walls along substantially the entire length thereof bounding the separation in radial and azimuthal directions relative to the rotation axis and each of said separation channels having a cross-sectional width less than 8 mm; and means for rotating said centrifuge within said housing about said rotation axis.
Claim 4
Dependent Claim
159 words
A rotational particle separator for separating particulate material having cross-sectional dimensions from about 0.1 micron to about 5 microns from a gas, said separator comprising: a housing having a gas inlet and a gas outlet; a centrifuge rotatably mounted in said housing along a rotation axis extending through said housing, said centrifuge including at least ten radially-spaced individual separation channels which extend parallel to each other and parallel to said rotation axis, each of said separation channels extending azimuthally about said rotation axis by less than 360° to prevent azimuthal flows greater than 360° about said rotation axis in any of said individual separation channels, each of said separation channels having boundary walls along substantially the entire length thereof bounding the separation in radial and azimuthal directions relative to the rotation axis and each of said separation channels having a cross-sectional width less than 8 mm; and means for rotating said centrifuge within said housing about said rotation axis.
Claim 5
Dependent Claim
148 words
A rotational particle separator for separating particulate material having cross-sectional dimensions from about 0.1 micron to about 5 microns from a gas, said separator comprising: a housing having a gas inlet and a gas outlet; a centrifuge rotatably mounted in said housing along a rotation axis extending through said housing, said centrifuge including at least ten radially-spaced individual separation channels which extend parallel to each other and parallel to said rotation axis, each of said separation channels extending azimuthally about said rotation axis by less than 360° to prevent azimuthal flows greater than 360° about said rotation axis in any of said individual separation channels, each of said separation channels enclosed along substantially the entire length thereof by a single wall and each of said separation channels having a cross-sectional width less than 8 mm; and means for rotating said centrifuge within said housing about said rotation axis.
Claim 6
Dependent Claim
148 words
A rotational particle separator for separating particulate material having cross-sectional dimensions from about 0.1 micron to about 5 microns from a gas, said separator comprising: a housing having a gas inlet and a gas outlet; a centrifuge rotatably mounted in said housing along a rotation axis extending through said housing, said centrifuge including at least ten radially-spaced individual separation channels which extend parallel to each other and parallel to said rotation axis, each of said separation channels extending azimuthally about said rotation axis by less than 360° to prevent azimuthal flows greater than 360° about said rotation axis in any of said individual separation channels, each of said separation channels enclosed along substantially the entire length thereof by a single wall and each of said separation channels having a cross-sectional width less than 8 mm; and means for rotating said centrifuge within said housing about said rotation axis.
Claim 7
Dependent Claim
39 words
The rotational particle separator of claim 1, 2 or 3 further including rotary means installed upstream of the separation channels for controlling the division of gas flow over the separation channels and for preventing internal circulations in the centrifuge.
Claim 8
Dependent Claim
38 words
The rotational particle separator of claim 1, 2 or 3 further including rotary means installed downstream of the separation channels for controlling the division of gas over the separation channels and for preventing internal circulations in the centrifuge.
Claim 9
Dependent Claim
18 words
The rotational particle separator of claims 1, 2 or 3 wherein said separation channels have circular cross sections.
Claim 10
Dependent Claim
20 words
The rotational particle separator of claims 1, 2 or 3 wherein said separation channels have a generally rectangular cross section.
Claim 11
Dependent Claim
36 words
The rotational particle separator of claims 1, 2 or 3 wherein the downstream end of a separation channel extends axially beyond the downstream end of separation channels arranged at a larger radius of the rotational axis.
Claim 12
Dependent Claim
20 words
The rotational particle separator of claims 1, 2 or 3 further including a pre-separator installed upstream from the separation channels.
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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) | 1994-12-16 | 1995-06-17 | 1995-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-12-16 | 1999-06-17 | 1999-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-12-16 | 2003-06-17 | 2003-12-17 | $7700.00 | Window Closed / Lapsed |