Patent US4236903A successfully refreshed from Google Patents.
US4236903A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air cleaner
Assignee: SALENIA AB
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Filing: 1978-07-17
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Granted: 1980-12-02
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Expires: 1998-07-17
Abstract
Abstract A air cleaner, comprising a container through which an elongated inlet tube is arranged to pass through a separating means in the form of piled discs having passages between them, said inlet tube being arranged with an outlet opening inside the container, said container being divided by a perforated partition into an air chamber for contaminated air and a substance chamber, said partition serving as a primary separation means arranged to permit flow of substance or contaminant into the substance chamber under influence of pressure from the contaminated air within the air chamber, said air thereafter being passed through said passages between the discs and leaving the container at the top.
Inventors
- 👤 Sven O. Malmsten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:19
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/10; B01D46/12; B01D50/00; B01D50/20
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
169 words
An air cleaner for the removal of contaminants in a flow of contaminated air through said air cleaner, said air cleaner comprising: a container having an elongated centrally located inlet tube and an outlet opening, said contaminated air flowing into said inlet tube and clean air flowing out of said outlet opening; dividing means for dividing said container into air and substance chambers, said air chamber for containing said contaminated air and said substance chamber for containing contaminants removed from said air, said dividing means comprising a plate with a plurality of arcuate perforations extending radially thereon and a conical portion located thereon so that said contaminated air flows from said inlet tube onto the apex of said conical portion; and separating means for removing said contaminants from said contaminated air, said separating means comprising a plurality of funnel-shaped discs located in said air chamber and coaxially around said inlet tube, each of said discs having means defining openings therethrough, said means defining openings being non-aligned with adjacent discs.
Claim 2
Dependent Claim
169 words
An air cleaner for the removal of contaminants in a flow of contaminated air through said air cleaner, said air cleaner comprising: a container having an elongated centrally located inlet tube and an outlet opening, said contaminated air flowing into said inlet tube and clean air flowing out of said outlet opening; dividing means for dividing said container into air and substance chambers, said air chamber for containing said contaminated air and said substance chamber for containing contaminants removed from said air, said dividing means comprising a plate with a plurality of arcuate perforations extending radially thereon and a conical portion located thereon so that said contaminated air flows from said inlet tube onto the apex of said conical portion; and separating means for removing said contaminants from said contaminated air, said separating means comprising a plurality of funnel-shaped discs located in said air chamber and coaxially around said inlet tube, each of said discs having means defining openings therethrough, said means defining openings being non-aligned with adjacent discs.
Claim 3
Dependent Claim
177 words
An air cleaner for the removal of contaminants in a flow of contaminated air through said air cleaner, said air cleaner comprising: a container having an elongated centrally located inlet tube and an outlet opening, said contaminated air flowing into said inlet tube and clean air flowing out of said outlet opening; dividing means for dividing said container into air and substance chambers, said air chamber for containing said contaminated air and said substance chamber for containing contaminants removed from said air, said dividing means comprising a perforated partition with a conical portion located thereon and a wing on said conical portion having a plane in the center of the conical portion, with said contaminated air flowing from said inlet tube onto the apex of said conical portion; and separating means for removing said contaminants from said contaminated air, said separating means comprising a plurality of funnel-shaped discs located in said air chamber and coaxially around said inlet tube, each of said discs having means defining openings therethrough, said means defining openings being non-aligned with adjacent discs.
Claim 4
Dependent Claim
177 words
An air cleaner for the removal of contaminants in a flow of contaminated air through said air cleaner, said air cleaner comprising: a container having an elongated centrally located inlet tube and an outlet opening, said contaminated air flowing into said inlet tube and clean air flowing out of said outlet opening; dividing means for dividing said container into air and substance chambers, said air chamber for containing said contaminated air and said substance chamber for containing contaminants removed from said air, said dividing means comprising a perforated partition with a conical portion located thereon and a wing on said conical portion having a plane in the center of the conical portion, with said contaminated air flowing from said inlet tube onto the apex of said conical portion; and separating means for removing said contaminants from said contaminated air, said separating means comprising a plurality of funnel-shaped discs located in said air chamber and coaxially around said inlet tube, each of said discs having means defining openings therethrough, said means defining openings being non-aligned with adjacent discs.
Claim 5
Dependent Claim
33 words
Air cleaner according to claim 2, characterized in that the width of the base of said conical portion and the length of the wing correspond to the diamater of said elongated inlet tube.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-12-02 | 1984-06-02 | 1984-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-02 | 1988-06-02 | 1988-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-02 | 1992-06-02 | 1992-12-02 | $7700.00 | Window Closed / Lapsed |