Patent US3716137A successfully refreshed from Google Patents.
US3716137A
Expired / Lapsed
US
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Cyclone separator
Assignee: Celleco AB
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Filing: 1970-03-18
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Granted: 1973-02-13
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Expires: 1990-03-18
Abstract
Abstract From the vortex chamber of a cyclone separator, a separated phase enters a discharge chamber coaxial with the vortex chamber and through which this phase flows toward a discharge opening while rotating around the axis of the chambers, thus following a screw-shaped track. Retarding means of the screw type are arranged coaxially in the discharge chamber and locked against rotation, the pitch of the retarding means being reversed relative to the pitch of the screw-shaped track of the separated phase.
Inventors
- 👤 R Frykhult
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:58
CPC Classifications
B; B04; B04C; B04C5/00; B04C5/14
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
154 words
A cyclone separator forming a vortex chamber and a discharge chamber coaxial with the vortex chamber, said discharge chamber having at one end an inlet opening for receiving a separated phase from the vortex chamber and having at the opposite end a discharge opening, said vortex chamber having a tangential inlet for inducing rotation of a feed product in one direction around the axis of said chambers, whereby said separated phase rotates in said one direction in a helical path from said inlet opening to said discharge opening of the discharge chamber, said discharge opening being unrestricted, and means fixed in the discharge chamber for exerting a counter pressure therein, said fixed means having an inclined surface portion located in said helical path and oppositely inclined to the inclination of said helical path, said discharge chamber including a free space for flow of the separated phase from said fixed means to said discharge opening.
Claim 2
Dependent Claim
154 words
A cyclone separator forming a vortex chamber and a discharge chamber coaxial with the vortex chamber, said discharge chamber having at one end an inlet opening for receiving a separated phase from the vortex chamber and having at the opposite end a discharge opening, said vortex chamber having a tangential inlet for inducing rotation of a feed product in one direction around the axis of said chambers, whereby said separated phase rotates in said one direction in a helical path from said inlet opening to said discharge opening of the discharge chamber, said discharge opening being unrestricted, and means fixed in the discharge chamber for exerting a counter pressure therein, said fixed means having an inclined surface portion located in said helical path and oppositely inclined to the inclination of said helical path, said discharge chamber including a free space for flow of the separated phase from said fixed means to said discharge opening.
Claim 3
Dependent Claim
154 words
A cyclone separator forming a vortex chamber and a discharge chamber coaxial with the vortex chamber, said discharge chamber having at one end an inlet opening for receiving a separated phase from the vortex chamber and having at the opposite end a discharge opening, said vortex chamber having a tangential inlet for inducing rotation of a feed product in one direction around the axis of said chambers, whereby said separated phase rotates in said one direction in a helical path from said inlet opening to said discharge opening of the discharge chamber, said discharge opening being unrestricted, and means fixed in the discharge chamber for exerting a counter pressure therein, said fixed means having an inclined surface portion located in said helical path and oppositely inclined to the inclination of said helical path, said discharge chamber including a free space for flow of the separated phase from said fixed means to said discharge opening.
Claim 4
Dependent Claim
154 words
A cyclone separator forming a vortex chamber and a discharge chamber coaxial with the vortex chamber, said discharge chamber having at one end an inlet opening for receiving a separated phase from the vortex chamber and having at the opposite end a discharge opening, said vortex chamber having a tangential inlet for inducing rotation of a feed product in one direction around the axis of said chambers, whereby said separated phase rotates in said one direction in a helical path from said inlet opening to said discharge opening of the discharge chamber, said discharge opening being unrestricted, and means fixed in the discharge chamber for exerting a counter pressure therein, said fixed means having an inclined surface portion located in said helical path and oppositely inclined to the inclination of said helical path, said discharge chamber including a free space for flow of the separated phase from said fixed means to said discharge opening.
Claim 5
Dependent Claim
30 words
A cyclone separator according to claim 1, in which said discharge opening has a diameter larger than the diameter of the passage between the vortex chamber and said discharge chamber.
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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) | 1976-02-13 | 1976-08-14 | 1977-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-13 | 1980-08-14 | 1981-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-13 | 1984-08-14 | 1985-02-13 | $7700.00 | Window Closed / Lapsed |