US3882025A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wastewater concentrator with slotted distributor
Assignee: Sweco Inc
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Filing: 1972-06-16
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Granted: 1975-05-06
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Expires: 1992-06-16
Abstract
Abstract There is disclosed herein apparatus for screening combined liquids-solids such as wastewater. Exemplary equipment includes a substantially cylindrical screening structure which is mounted for rotation and a slotted distributor disposed therein. Influent is piped into the distributor and flows through slots in the peripherial wall thereof toward the inner surface of the screening structure. The flow of influent from the distributor onto the screening structure causes the screening structure to rotate, and the influent is screened thereby.
Inventors
- 👤 Jr Walter J Talley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:41
CPC Classifications
B; B01; B01D; B01D33/00; B01D33/06; B01D33/11; B01D33/44; B01D33/48; B01D33/50; B01D2201/00; B01D2201/28; B01D2201/287
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
159 words
Screen apparatus comprising substantially cylindrical screening means for screening an influent applied thereto, support means for supporting said screening means for rotation substantially about the axis of said screening means, stationary distributor means disposed in said screening means for receiving influent and providing at least a stream of influent toward the inner surface of said screening means, said stationary distributor means imparting a velocity component to at least one said stream of influent which is tangential relative to said substantially cylindrical screening means in the direction of rotation of said substantially cylindrical screening means, said tangential velocity component providing the sole means for rotating said screening means said distributor means includes a peripheral wall, a top and a bottom thereby defining a substantially cylindrical enclosure, said peripheral wall being close to the inner surface of said screening means and having associated therewith the means for imparting the velocity component, and feed means for supplying influent into said distributor means.
Claim 2
Dependent Claim
159 words
Screen apparatus comprising substantially cylindrical screening means for screening an influent applied thereto, support means for supporting said screening means for rotation substantially about the axis of said screening means, stationary distributor means disposed in said screening means for receiving influent and providing at least a stream of influent toward the inner surface of said screening means, said stationary distributor means imparting a velocity component to at least one said stream of influent which is tangential relative to said substantially cylindrical screening means in the direction of rotation of said substantially cylindrical screening means, said tangential velocity component providing the sole means for rotating said screening means said distributor means includes a peripheral wall, a top and a bottom thereby defining a substantially cylindrical enclosure, said peripheral wall being close to the inner surface of said screening means and having associated therewith the means for imparting the velocity component, and feed means for supplying influent into said distributor means.
Claim 3
Dependent Claim
188 words
Screen apparatus comprising substantially cylindrical screening means for screening an influent applied thereto, support means for supporting said screening means for rotation substantially about the axis of said screening means, stationary distributor means disposed in said screening means for receiving influent and providing at least a stream of influent toward the inner surface of said screening means, said stationery distrubutor means imparting a velocity component to at least one said stream of influent which is tangential relative to said substantially cylindrical screening means in the direction of rotation of said substantially cylindrical screening means, said tangential velocity component providing the sole means for rotating said screening means, said distributor has an inner wall and an outer substantially cylindrical wall with said outer wall being a peripheral wall and having a plurality of slots therein for providing a plurality of streams of influent toward the inner surface of said screening means, each of said slots including a deflection means associated therewith for imparting to each respective stream the velocity component which is tangential to said substantially cylindrical screening means, and feed means for suppLying influent into said distributor means.
Claim 4
Dependent Claim
188 words
Screen apparatus comprising substantially cylindrical screening means for screening an influent applied thereto, support means for supporting said screening means for rotation substantially about the axis of said screening means, stationary distributor means disposed in said screening means for receiving influent and providing at least a stream of influent toward the inner surface of said screening means, said stationery distrubutor means imparting a velocity component to at least one said stream of influent which is tangential relative to said substantially cylindrical screening means in the direction of rotation of said substantially cylindrical screening means, said tangential velocity component providing the sole means for rotating said screening means, said distributor has an inner wall and an outer substantially cylindrical wall with said outer wall being a peripheral wall and having a plurality of slots therein for providing a plurality of streams of influent toward the inner surface of said screening means, each of said slots including a deflection means associated therewith for imparting to each respective stream the velocity component which is tangential to said substantially cylindrical screening means, and feed means for suppLying influent into said distributor means.
Claim 5
Dependent Claim
156 words
Screening apparatus comprising substantially cylindrical screening means for screening an influent applied thereto, support means for supporting said screening means for rotation substantially about the axis of said screening means, stationary distributor means disposed in said screening means for receiving influent and providing at least a stream of influent toward the inner surface of said screening means, said distributor means having walls defining a substantially cylindrical enclosure with the peripheral wall thereof being close to the inner surface of said screening means and having at least a slot therein for supplying a stream of influent toward said screening means, means associated with said slot for imparting a velocity component to said stream of influent which is tangential relative to said substantially cylindrical screening means to effect rotation of said substantially cylindrical screening means, said tangential velocity components providing the sole means for rotating said screening means, and feed means for supplying influent into said distributor means.
Claim 6
Dependent Claim
156 words
Screening apparatus comprising substantially cylindrical screening means for screening an influent applied thereto, support means for supporting said screening means for rotation substantially about the axis of said screening means, stationary distributor means disposed in said screening means for receiving influent and providing at least a stream of influent toward the inner surface of said screening means, said distributor means having walls defining a substantially cylindrical enclosure with the peripheral wall thereof being close to the inner surface of said screening means and having at least a slot therein for supplying a stream of influent toward said screening means, means associated with said slot for imparting a velocity component to said stream of influent which is tangential relative to said substantially cylindrical screening means to effect rotation of said substantially cylindrical screening means, said tangential velocity components providing the sole means for rotating said screening means, and feed means for supplying influent into said distributor means.
Claim 7
Dependent Claim
151 words
A screen apparatus comprising support means, screen means for screening an influent to derive a concentrate and an effluent, said screen means comprising a substantially cylindrical screen structure rotatably supported about the axis of said screen means on said support means, said screen means being free to rotate, stationary distributor means disposed in said screen means for receiving influent and providing a plurality of streams of influent toward the inner surface of said screen means, said distributor means including a substantially enclosed container having a plurality of slots through a peripheral wall thereof for supplying said streams of influent means associated with said peripheral wall to direct said streams of influent to impact said screen means with a tangential velocity component which acts to rotate said screen means, said tangential velocity components providing the sole means for rotating said screening means, and feed means for supplying influent into said distributor means.
Claim 8
Dependent Claim
151 words
A screen apparatus comprising support means, screen means for screening an influent to derive a concentrate and an effluent, said screen means comprising a substantially cylindrical screen structure rotatably supported about the axis of said screen means on said support means, said screen means being free to rotate, stationary distributor means disposed in said screen means for receiving influent and providing a plurality of streams of influent toward the inner surface of said screen means, said distributor means including a substantially enclosed container having a plurality of slots through a peripheral wall thereof for supplying said streams of influent means associated with said peripheral wall to direct said streams of influent to impact said screen means with a tangential velocity component which acts to rotate said screen means, said tangential velocity components providing the sole means for rotating said screening means, and feed means for supplying influent into said distributor means.
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) | 1978-05-05 | 1978-11-04 | 1979-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-05 | 1982-11-04 | 1983-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-05 | 1986-11-04 | 1987-05-06 | $7700.00 | Window Closed / Lapsed |