Patent US4744929A successfully refreshed from Google Patents.
US4744929A
Expired / Lapsed
US
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Support device for a packed column
Assignee: Saint Gobain Abrasives Inc
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Filing: 1987-03-09
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Granted: 1988-05-17
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Expires: 2007-03-09
Abstract
Abstract A support device for supporting a packing material in a packed column having an upwardly flowing gas and a downwardly flowing liquid. The device comprises a plate having a plurality of formations. Each formation comprises spaced side walls connected by an upper wall, with apertures being provided in the side walls to permit the flow of the gas therethrough. A collecting channel is provided on at least one of the formations to collect the downwardly flowing liquid. The formations have a plural-skin construction to reduce the amount of liquid flowing through the apertures. The formations are provided with streamlining in order to improve the efficiency of gas flow.
Inventors
- 👤 Kenneth Robinson
- 👤 Frank Rukovena, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:02
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/14; B01D3/16; B01D3/18; B01D3/20; B01J; B01J19/00; B01J19/30; B01J19/305
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
151 words
A support device for supporting a packing material and collecting a portion of liquid flow in a packed column of a counterflowing gas and liquid contact apparatus comprising: support means including a circumferential sump extending about and at least one other sump extending across the support device supported within and by the column; a plate having a plurality of juxtaposed elongate members and upwardly extending formations thereon extending between the sumps and each formation comprising at least one spaced pair of side walls extending upwardly from the elongate members of the plate and adapted to permit the flow of said gas into and through the formations; and liquid collecting means provided on top of at least one of the formations and situated adjacent the said side walls for collecting and directing a portion of the liquid to an edge of the plate and into one of said sumps adjacent the edge.
Claim 2
Dependent Claim
151 words
A support device for supporting a packing material and collecting a portion of liquid flow in a packed column of a counterflowing gas and liquid contact apparatus comprising: support means including a circumferential sump extending about and at least one other sump extending across the support device supported within and by the column; a plate having a plurality of juxtaposed elongate members and upwardly extending formations thereon extending between the sumps and each formation comprising at least one spaced pair of side walls extending upwardly from the elongate members of the plate and adapted to permit the flow of said gas into and through the formations; and liquid collecting means provided on top of at least one of the formations and situated adjacent the said side walls for collecting and directing a portion of the liquid to an edge of the plate and into one of said sumps adjacent the edge.
Claim 3
Dependent Claim
41 words
A support device according to claim 1 in which the collecting means further comprises: a channel in the elongate member of the plate arranged to direct the collected liquid to an edge of the plate and into one of said sumps.
Claim 4
Dependent Claim
36 words
A support device according to claim 1 in which the collector means comprises: a channel connected to a sidewall and arranged to direct liquid to an edge of the plate and into one of said sumps.
Claim 5
Dependent Claim
15 words
A support device according to claim 1 in which each formation has collecting means thereon.
Claim 6
Dependent Claim
21 words
A support device according to claim 1, in which the formations are streamlined to improve the efficiency of gas flow therethrough.
Claim 7
Dependent Claim
37 words
A support device according to claim 5 in which each formation streamlined comprises spaced perforated side walls with perforations connected by an upper wall, and a first streamlining formation provided on the underside of the upper wall.
Claim 8
Dependent Claim
24 words
A support device according to claim 6, in which a second streamlining formation is provided on the underside of the plate between adjacent formations.
Claim 9
Dependent Claim
145 words
A support device according to claim 1 wherein each formation has a plural-skin construction comprising: a first spaced pair of perforated side walls with perforations extending upwardly from the elongate members of the plate and connected by a first upper wall; a cover member disposed on each of the formations including a second spaced pair of upwardly extending perforated side walls with perforations connected to a second upper wall and situated adjacent the first spaced pair of perforated side walls and the first upper wall and wherein the liquid collecting means is provided on at least one of the formations and situated adjacent the second upper wall and above the perforations in the side walls whereby the formations are adapted to permit the flow of said gas and to reduce the flow of liquid through the perforations in the side walls and the support device.
Claim 10
Dependent Claim
27 words
A support device according to claim 8, in which the collecting means comprises: a channel connected to and situated between the second spaced pair of side walls.
Claim 11
Dependent Claim
25 words
A support device according to claim 9, in which the collecting means further comprises channels in the elongate members of the plate between adjacent formations.
Claim 12
Dependent Claim
26 words
A support device according to claim 8, in which each formation further comprises a first streamlining formation provided on the underside of the first upper wall.
Claim 13
Dependent Claim
24 words
A support device according to claim 11, in which a second streamlining formation is provided on the underside of the plate between adjacent formations.
References Cited (Backward Citations)
US2182533A
Cited
US2686046A
Cited
US3016234A
Cited
US3222040A
Cited
US3273872A
Cited
US3222041A
Cited
GB1097992A
Cited
US3360246A
Cited
US3969447A
Cited
US3937769A
Cited
US4087252A
Cited
US4171333A
Cited
US4264538A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-05-17 | 1991-11-16 | 1992-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-05-17 | 1995-11-16 | 1996-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-05-17 | 1999-11-16 | 2000-05-17 | $7700.00 | Window Closed / Lapsed |