US5205850A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Particular filter
Assignee: Didier Werke AG
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Filing: 1992-05-26
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Granted: 1993-04-27
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Expires: 2012-05-26
Abstract
Abstract A particulate filter includes a housing having opposite ends, a pair of support walls adjacent respective opposite ends of the housing and defining therein an interior, and a pair of pure gas chambers defined at respective opposite ends of the housing at sides of the respective support walls outwardly of the interior. A plurality of elongated filter bodies are supported by the support walls to extend therebetween within the housing with longitudinal axes of the filter bodies extending parallel. The filter bodies define outwardly thereof within the housing a raw gas chamber in the form of a plurality of elongated raw gas compartments. Hollow interiors of the filter bodies define respective elongated pure gas channels. Each pure gas channel opens into at least one of the pure gas chambers. A raw gas supply inlet connection opens into the interior of the housing at a position between the pair of support walls such that raw gas is supplied to the exterior of the filter bodies in a direction transverse to the direction of elongation of the raw gas compartments and transverse to the longitudinal axes of the filter bodies.
Inventors
- 👤 Thielo Jenrich
- 👤 Dietmar Thalheim
- 👤 Horst Kalfa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:03
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/24; B01D46/2403; B01D46/2407; B01D46/0002; B01D46/0005; B01D46/0039; B01D46/0041; B01D46/0046; F; F01; F01N; F01N3/00; F01N3/02; F01N3/021; F01N3/0211; F01N3/0217; B01D2271/00; B01D2271/02; F01N2330/00; F01N2330/06; F01N2450/00; F01N2450/24; F01N2470/00; F01N2470/14; F01N2470/18; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12; Y10; Y10S; Y10S55/00; Y10S55/10
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
213 words
A particulate filter comprising: a housing having opposite ends; a pair of support walls adjacent respective said opposite ends of said housing and defining therein an interior; a pair of pure gas chambers defined at respective said opposite ends of said housing at sides of respective said support walls outwardly of said interior; a plurality of elongated filter bodies having respective longitudinal axes and hollow interiors, said filter bodies being supported by said support walls to extend therebetween within said housing with said longitudinal axes extending generally parallel, such that said filter bodies define outwardly thereof within said housing a raw gas chamber in the from of a plurality of elongated raw gas compartments, and such that said hollow interiors of said filter bodies define respective elongated pure gas channels; each said pure gas chamber having opening thereinto at least one of said pure gas channels, and each said pure gas channel opening into at least one of said pure gas chambers; said housing having, at a position between said pair of support walls, a raw gas supply connection opening into said interior of said housing in a direction transverse to the direction of elongation of said raw gas compartment; and means for discharging pure gas from said pair of pure gas chambers.
Claim 2
Dependent Claim
213 words
A particulate filter comprising: a housing having opposite ends; a pair of support walls adjacent respective said opposite ends of said housing and defining therein an interior; a pair of pure gas chambers defined at respective said opposite ends of said housing at sides of respective said support walls outwardly of said interior; a plurality of elongated filter bodies having respective longitudinal axes and hollow interiors, said filter bodies being supported by said support walls to extend therebetween within said housing with said longitudinal axes extending generally parallel, such that said filter bodies define outwardly thereof within said housing a raw gas chamber in the from of a plurality of elongated raw gas compartments, and such that said hollow interiors of said filter bodies define respective elongated pure gas channels; each said pure gas chamber having opening thereinto at least one of said pure gas channels, and each said pure gas channel opening into at least one of said pure gas chambers; said housing having, at a position between said pair of support walls, a raw gas supply connection opening into said interior of said housing in a direction transverse to the direction of elongation of said raw gas compartment; and means for discharging pure gas from said pair of pure gas chambers.
Claim 3
Dependent Claim
28 words
A filter as claimed in claim 1, wherein each said filter body comprises a filter cartridge having an open first axial end and a closed second axial end.
Claim 4
Dependent Claim
39 words
A filter as claimed in claim 2, wherein said open first axial end opens into one of said pure gas chambers, and said closed second axial end is blocked from opening into the other of said pure gas chambers.
Claim 5
Dependent Claim
50 words
A filter as claimed in claim 3, wherein said open first axial end extends through and is sealed to one of said support walls, and said closed second axial end is supported by the other of said support walls and blocked thereby from communication with said other pure gas chamber.
Claim 6
Dependent Claim
51 words
A filter as claimed in claim 3, wherein a first group of said filter bodies open at respective open axial ends thereof into a first said pure gas chamber, and a second group of said filter bodies open at respective open axial ends thereof into a second said pure gas chamber.
Claim 7
Dependent Claim
20 words
A filter as claimed in claim 3, wherein adjacent said filter bodies open alternately into respective said pure gas chambers.
Claim 8
Dependent Claim
45 words
A filter as claimed in claim 1, wherein each said filter body opens at a first axial end thereof into one of said pure gas chambers and is blocked at a second axial end thereof from opening into the other of said pure gas chambers.
Claim 9
Dependent Claim
48 words
A filter as claimed in claim 7, wherein said first axial end extends through and is sealed to one of said support walls, and said second axial end is supported by the other of said support walls and blocked thereby from communication with said other pure gas chamber.
Claim 10
Dependent Claim
51 words
A filter as claimed in claim 7, wherein a first group of said filter bodies open at respective first axial ends thereof into a first said pure gas chamber, and a second group of said filter bodies open at respective first axial ends thereof into a second said pure gas chamber.
Claim 11
Dependent Claim
20 words
A filter as claimed in claim 7, wherein adjacent said filter bodies open alternately into respective said pure gas chambers.
Claim 12
Dependent Claim
13 words
A filter as claimed in claim 1, wherein said filter bodies are cylindrical.
Claim 13
Dependent Claim
13 words
A filter as claimed in claim 1, wherein said filter bodies are ceramic.
Claim 14
Dependent Claim
18 words
A filter as claimed in claim 1, wherein said pair of support walls are sealed within said housing.
Claim 15
Dependent Claim
17 words
A filter as claimed in claim 1, wherein said housing is cylindrical between said opposite ends thereof.
Claim 16
Dependent Claim
25 words
A filter as claimed in claim 1, wherein said filter bodies open at respective opposite axial ends thereof into both of said pure gas chambers.
Claim 17
Dependent Claim
24 words
A filter as claimed in claim 1, wherein said discharging means comprises pure gas outlet connections extending from respective of said pure gas chambers.
Claim 18
Dependent Claim
33 words
A filter as claimed in claim 1, further comprising cover members removably connected to respective said opposite ends of said housing and defining with respective said support walls respective said pure gas chambers.
Claim 19
Dependent Claim
25 words
A filter as claimed in claim 1, wherein said raw gas supply gas connection includes an expanded funnel portion defining an opening in said housing.
Claim 20
Dependent Claim
12 words
A filter as claimed in claim 18, wherein said opening is rectangular.
Claim 21
Dependent Claim
24 words
A filter as claimed in claim 18, wherein said opening is elongated in a direction parallel to said longitudinal axes of said filter bodies.
Claim 22
Dependent Claim
25 words
A filter as claimed in claim 18, wherein said opening extends through a major portion of a dimension of said housing between said support walls.
Claim 23
Dependent Claim
39 words
A filter as claimed in claim 1, wherein said raw gas supply connection extends in a direction to deliver raw gas to said compartments with components of flow direction extending perpendicular to said longitudinal axes of said filter bodies.
References Cited (Backward Citations)
DE3235363A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-04-26 | 1996-10-26 | 1997-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-04-26 | 2000-10-26 | 2001-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-04-26 | 2004-10-26 | 2005-04-27 | $7700.00 | Window Closed / Lapsed |