Patent US3822533A successfully refreshed from Google Patents.
US3822533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for removing impurities from gases
Assignee: Nederlandse Gasunie NV
•
Filing: 1973-03-02
•
Granted: 1974-07-09
•
Expires: 1993-03-02
Abstract
Abstract An improved separator of the type having a cylindrical vessel, a feed tube extending into the vessel normal to its axis, an axial discharge tube and a first plate mounted perpendicular to the vessel axis under the axial discharge tube. To avoid undue wear on the separator bottom, a second plate is mounted beneath the first plate, which may be conical at specific distances and having specific dimensions.
Inventors
- 👤 L Oranje
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:10
CPC Classifications
B; B04; B04C; B04C5/00; B04C5/08; B04C5/103; B01; B01D; B01D45/00; B01D45/12; B01D45/16
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
267 words
In an apparatus for separating solids and/or liquids from a gas stream having a cylindrical vessel, a feed tube extending normal to the axis of said vessel, an axial discharge conduit which protrudes into the vessel and is surrounded by blade-shaped means for imparting a rotary motion to the gas fed in and under which a first plate is mounted having a circular outer rim which lies in a plane normal to the axis of the vessel, under which first plate further means are installed for setting the substances separated off at rest, the improvement wherein said further means comprises at least a second plate having a circular outer rim whose external diameter is smaller than the internal diameter of said cylindrical vessel, and which second plate is positioned under said first plate at a distance amounting to at least 1/8th of the distance between the plane of the rim of the first plate and said discharge conduit, the shape of said first plate being that of a cone or of a truncated cone with an apex angle between 90* and 180*, the tip of the cone being pointed toward said discharge conduit, diameter of the first plate being 0.5 to 0.95 times the internal diameter of the cylindrical part of the vessel and 1.5 to 3 times the diameter of the discharge conduit, and the plane in which the rim of the first plate is situated being at a distance of one to three times, and the highest point of the first plate at least 0.7 times, the diameter of said discharge conduit from said conduit.
Claim 2
Dependent Claim
267 words
In an apparatus for separating solids and/or liquids from a gas stream having a cylindrical vessel, a feed tube extending normal to the axis of said vessel, an axial discharge conduit which protrudes into the vessel and is surrounded by blade-shaped means for imparting a rotary motion to the gas fed in and under which a first plate is mounted having a circular outer rim which lies in a plane normal to the axis of the vessel, under which first plate further means are installed for setting the substances separated off at rest, the improvement wherein said further means comprises at least a second plate having a circular outer rim whose external diameter is smaller than the internal diameter of said cylindrical vessel, and which second plate is positioned under said first plate at a distance amounting to at least 1/8th of the distance between the plane of the rim of the first plate and said discharge conduit, the shape of said first plate being that of a cone or of a truncated cone with an apex angle between 90* and 180*, the tip of the cone being pointed toward said discharge conduit, diameter of the first plate being 0.5 to 0.95 times the internal diameter of the cylindrical part of the vessel and 1.5 to 3 times the diameter of the discharge conduit, and the plane in which the rim of the first plate is situated being at a distance of one to three times, and the highest point of the first plate at least 0.7 times, the diameter of said discharge conduit from said conduit.
Claim 3
Dependent Claim
84 words
In an apparatus according to claim 1, the further improvement wherein said further means comprises an annular second plate having an inner diameter of at least 0.5 times that of said first plate, an outer rim at most at about 25 mm from the inner wall of the cylindrical part of the vessel, and mounted under said first plate at a distance therefrom of 1/8 to 1/2 times the distance from the plane of the rim of said first plate to said discharge conduit.
Claim 4
Dependent Claim
99 words
In an apparatus according to claim 1, the further improvement wherein said circular second plate has a diameter of 0.5 to 0.9 times the internal diameter of the cylindrical part of said vessel, is mounted under the first plate at a distance of at least one half and at most 3/2 times the diameter of the cylindrical part of said vessel and under which circular second plate one or more approximately radial baffles are mounted whose height in the cylindrical part of the vessel amounts to 1/8 to 1/2 of the diameter of the cylindrical part of the vessel.
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) | 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 |