US4581045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas distributing device
Assignee: GEA Group AG
•
Filing: 1984-08-16
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Granted: 1986-04-08
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Expires: 2004-08-16
Abstract
Abstract A gas-distributing device for use in a gas passage which flares like a diffuser, particularly a passage leading to an electrostatic precipitator, formed by a set of components consisting of perforated sheet metal panels, carrying and connecting elements, in which the carrying elements have no wide end faces extending at right angles to the direction of flow so that the variations of the gas velocity over the entire flow area can be distinctly reduced. Besides, the set of components can be manufactured at lower total costs and the perforated sheet metal panels, which are connected by the connecting element to the carrying elements consisting of flat bar strips, is simplified.
Inventors
- 👤 Egon Jury
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:35
CPC Classifications
B; B03; B03C; B03C3/00; B03C3/34; B03C3/36; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87265
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
91 words
A gas-distributing wall assembly comprising: at least two perforated sheet metal panels to be joined, said panels having flanges bent along edges of the panels and forming an L-cross-sectional configuration therewith; a carrier for said panels comprising a pair of mutually parallel bars spaced apart for receiving said flanges, said bars being spaced apart by a plurality of spacers received between said bars, said spacers being spaced apart along said bars; and means for retaining said panels on said bars whereby gas passages are formed between the flanges through said carrier.
Claim 2
Dependent Claim
91 words
A gas-distributing wall assembly comprising: at least two perforated sheet metal panels to be joined, said panels having flanges bent along edges of the panels and forming an L-cross-sectional configuration therewith; a carrier for said panels comprising a pair of mutually parallel bars spaced apart for receiving said flanges, said bars being spaced apart by a plurality of spacers received between said bars, said spacers being spaced apart along said bars; and means for retaining said panels on said bars whereby gas passages are formed between the flanges through said carrier.
Claim 3
Dependent Claim
13 words
The gas-distributing wall assembly defined in claim 1 wherein said bars are flat.
Claim 4
Dependent Claim
14 words
The gas-distributing wall assembly defined in claim 2 wherein said spacers are rectangular blocks.
Claim 5
Dependent Claim
30 words
The gas-distributing wall assembly defined in claim 3 wherein said retaining means includes T-shaped connectors each having a head reaching over adjoining panels and a shank extending between said bars.
Claim 6
Dependent Claim
19 words
The gas-distributing wall assembly defined in claim 4 wherein said shank is notched to engage over a respective spacer.
Claim 7
Dependent Claim
38 words
The gas-distributing wall assembly defined in claim 5 wherein said passages have a cross-section and distribution such that the gas flow cross-section ratio and nonapertured surface is said carrier is substantially the same as that of said panels.
Claim 8
Dependent Claim
138 words
A diffuser for feeding a gas to an electrostatic precipitator, comprising a housing diverging from a gas inlet to an outlet opening into said electrostatic precipitator, and a plurality of wall assemblies disposed in said housing and extending transversely to a direction of gas flow therethrough, each of said wall assemblies comprising: at least two perforated sheet metal panels to be joined, said panels having flanges bent along edges of the panels and forming an L-cross-sectional configuration therewith; a carrier for said panels comprising a pair of mutually parallel bars spaced apart for receiving said flanges, said bars being spaced apart by a plurality of spacers received between said bars, said spacers being spaced apart along said bars; and means for retaining said panels on said bars whereby gas passages are formed between the flanges through said carrier.
Claim 9
Dependent Claim
138 words
A diffuser for feeding a gas to an electrostatic precipitator, comprising a housing diverging from a gas inlet to an outlet opening into said electrostatic precipitator, and a plurality of wall assemblies disposed in said housing and extending transversely to a direction of gas flow therethrough, each of said wall assemblies comprising: at least two perforated sheet metal panels to be joined, said panels having flanges bent along edges of the panels and forming an L-cross-sectional configuration therewith; a carrier for said panels comprising a pair of mutually parallel bars spaced apart for receiving said flanges, said bars being spaced apart by a plurality of spacers received between said bars, said spacers being spaced apart along said bars; and means for retaining said panels on said bars whereby gas passages are formed between the flanges through said carrier.
Claim 10
Dependent Claim
11 words
The diffuser defined in claim 7 wherein said bars are flat.
Claim 11
Dependent Claim
12 words
The diffuser defined in claim 8 wherein said spacers are rectangular blocks.
Claim 12
Dependent Claim
28 words
The diffuser defined in claim 9 wherein said retaining means includes T-shaped connectors each having a head reaching over adjoining panels and a shank extending between said bar.
Claim 13
Dependent Claim
17 words
The diffuser defined in claim 10 wherein said shank is notched to engage over a respective spacer.
Claim 14
Dependent Claim
36 words
The diffuser defined in claim 11 wherein said passages have a cross-section and distribution such that the gas flow cross-section ratio and nonapertured surface to said carrier is substantially the same as that of said panels.
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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) | 1989-04-07 | 1989-10-07 | 1990-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-07 | 1993-10-07 | 1994-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-07 | 1997-10-07 | 1998-04-08 | $7700.00 | Window Closed / Lapsed |