Patent US3822531A successfully refreshed from Google Patents.
US3822531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for agglomerating and separating particulates from a gas
Assignee: PPG Industries Inc
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Filing: 1973-02-27
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Granted: 1974-07-09
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Expires: 1993-02-27
Abstract
Abstract An apparatus is described for conditioning gaseous emissions from an internal combustion engine, e.g., an automobile engine, said emissions containing particulate matter, e.g., lead and other particulates, said apparatus comprising an agglomerator coupled to an inertial separator in a housing and which apparatus is preferably coupled to a filter.
Inventors
- 👤 J Wisnewski
- 👤 M Treuhaft
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:04
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/02; F01N3/021; F01N3/0211; B; B01; B01D; B01D50/00; F01N13/00; F01N13/009; F01N3/022; F01N3/0226; F01N3/033; F01N3/037; F01N2250/00; F01N2250/08; F01N2330/00; F01N2330/10; F01N2330/101; F01N2330/102; F01N2330/12; F01N2370/00; F01N2370/22; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12; Y10; Y10S; Y10S55/00; Y10S55/25; Y10S55/30
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
134 words
An apparatus for conditioning gaseous emissions from the internal combustion engine, said apparatus comprising: a. a housing having a first and second entrance chamber at opposite ends of said housing; b. gas inlet conduit means connected to said first entrance chamber for conveying gaseous emissions into said first entrance chamber; c. perforated gas agglomerator conduit means connecting said first and second entrance chambers, said conduit means being spaced from the internal walls of said housing; d. inertial separator means in gas communication with said second entrance chamber; e. baffle means spaced from the internal walls of said housing and between said perforated gas agglomerator conduit means and said inertial separator means to define an agglomerator chamber and a separator chamber; and f. gas exit conduit means in gas communication with said inertial separator means.
Claim 2
Independent Claim
134 words
An apparatus for conditioning gaseous emissions from the internal combustion engine, said apparatus comprising: a. a housing having a first and second entrance chamber at opposite ends of said housing; b. gas inlet conduit means connected to said first entrance chamber for conveying gaseous emissions into said first entrance chamber; c. perforated gas agglomerator conduit means connecting said first and second entrance chambers, said conduit means being spaced from the internal walls of said housing; d. inertial separator means in gas communication with said second entrance chamber; e. baffle means spaced from the internal walls of said housing and between said perforated gas agglomerator conduit means and said inertial separator means to define an agglomerator chamber and a separator chamber; and f. gas exit conduit means in gas communication with said inertial separator means.
Claim 3
Dependent Claim
15 words
The apparatus of claim 1 wherein an agglomeration aid is contained in said agglomerator chamber.
Claim 4
Dependent Claim
20 words
The apparatus of claim 2 wherein an agglomeration aid of stainless steel wire is formed about the perforated agglomerator conduit.
Claim 5
Dependent Claim
13 words
The apparatus of claim 1 wherein the inertial separator means is a cyclone.
Claim 6
Dependent Claim
16 words
The apparatus of claim 1 wherein said separator chamber contains a reentrainment inhibitor of fiber glass.
Claim 7
Dependent Claim
33 words
The apparatus of claim 1 additionally comprising a filter and conduit means for transmitting gas from said separator to said filter and conduit means for transmitting gas from said filter to the atmosphere.
Claim 8
Dependent Claim
64 words
The apparatus of claim 6 wherein the filter comprises a high efficiency fiber glass filtering aid disposed about a perforated conduit contained in a housing said fiber glass having a colloidal silica binder and a mineral flocculent affixed thereto, and means to pass gas through the conduit and filtering aid and means to remove gas through the filter after passage through the filtering aid.
Claim 9
Dependent Claim
16 words
The apparatus of claim 1 additionally comprising an agglomeration aid disposed within said perforated agglomerator conduit.
Claim 10
Independent Claim
156 words
An apparatus for conditioning gaseous emissions produced by an internal combustion engine, said apparatus comprising: a housing having a first and second entrance chamber at opposite ends of said housing; gas inlet conduit means connected to said first entrance chamber for conveying gaseous emissions into said first entrance chamber; perforated gas agglomerator conduit means connecting said first and second entrance chambers, said agglomerator conduit means being spaced from the internal walls of said housing; an agglomeration aid of stainless steel wire formed about said agglomerator conduit means; a cyclone separator in said housing in gas communication with said second entrance chamber; particulate collecting means connected to said separator, said collecting means comprising a second perforated conduit in communication with a reentrainment inhibitor to receive particulates through the perforations of said second perforated conduit, and to inhibit the return of said particulates into the cyclone separator; and gas exit conduit means in communication with said cyclone separator.
Claim 11
Independent Claim
156 words
An apparatus for conditioning gaseous emissions produced by an internal combustion engine, said apparatus comprising: a housing having a first and second entrance chamber at opposite ends of said housing; gas inlet conduit means connected to said first entrance chamber for conveying gaseous emissions into said first entrance chamber; perforated gas agglomerator conduit means connecting said first and second entrance chambers, said agglomerator conduit means being spaced from the internal walls of said housing; an agglomeration aid of stainless steel wire formed about said agglomerator conduit means; a cyclone separator in said housing in gas communication with said second entrance chamber; particulate collecting means connected to said separator, said collecting means comprising a second perforated conduit in communication with a reentrainment inhibitor to receive particulates through the perforations of said second perforated conduit, and to inhibit the return of said particulates into the cyclone separator; and gas exit conduit means in communication with said cyclone separator.
Claim 12
Dependent Claim
38 words
The apparatus of claim 9 additionally comprising a baffle means spaced from the internal walls of said housing and between said perforated gas agglomerator means and said cyclone separator to define an agglomerator chamber and a separator chamber.
Claim 13
Dependent Claim
16 words
The apparatus of claim 9 additionally comprising an agglomeration aid disposed within said perforated agglomerator conduit.
Claim 14
Dependent Claim
12 words
The apparatus of claim 9 wherein the reentrainment inhibitor comprises fiber glass.
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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) | 1977-07-08 | 1978-01-07 | 1978-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-08 | 1982-01-07 | 1982-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-08 | 1986-01-07 | 1986-07-09 | $7700.00 | Window Closed / Lapsed |