Patent US4650579A successfully refreshed from Google Patents.
US4650579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clarifiers
Assignee: Dunlop Olympic Ltd
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Filing: 1985-04-26
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Granted: 1987-03-17
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Expires: 2005-04-26
Abstract
Abstract A clarifier for treatment of water and other liquids including a housing having a generally channel shaped member having an inlet arm and an outlet arm. The inlet arm forms a flocculation zone and the outlet arm forms a settling zone. The inlet arm may be provided with means for causing influent to travel a tortuous or serpentine flow path and the settling zone may include settling means so as to increase the effective surface area of the settling zone. Suitably both the inlet arm and outlet arm are substantially parallel to each other with the inlet arm being spaced from and located upwardly of the outlet arm. A sludge collection zone may be provided at the junction of the inlet arm and the outlet arm and may have associated therewith one or more sludge removal conduits.
Inventors
- 👤 Ross H. Harvey
- 👤 Graham W. Wobcke
- 👤 Antony W. Rogers
- 👤 Robert R. Fenwick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:25
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/52; C02F1/5281; B; B01; B01D; B01D21/00; B01D21/0012; B01D21/0018; B01D21/0039; B01D21/0042; B01D21/0051; B01D21/02; B01D21/08
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
167 words
A clarifier for treatment of water and other liquids comprising: a housing, being closed and pressurizable, said housing including, a chamber, being generally channel shaped and substantially defining the periphery of said housing, a first portion of said housing forming an inlet arm having a fluid inlet means, said inlet arm forming a flocculation zone in said chamber having means for causing influent to travel a tortuous flow path, a second portion of said housing forming an outlet arm having a fluid outlet means, said outlet arm forming a settling zone in said chamber having means for increasing the effective surface area of said settling zone, said outlet arm and said inlet arm being substantially parallel to each other with said inlet arm being spaced by a predetermined distance from and located above, said outlet arm, and a sludge collection zone located at the junction of said flocculation zone and said settling zone in said chamber, said sludge collection zone having at least one sludge removal conduct.
Claim 2
Dependent Claim
167 words
A clarifier for treatment of water and other liquids comprising: a housing, being closed and pressurizable, said housing including, a chamber, being generally channel shaped and substantially defining the periphery of said housing, a first portion of said housing forming an inlet arm having a fluid inlet means, said inlet arm forming a flocculation zone in said chamber having means for causing influent to travel a tortuous flow path, a second portion of said housing forming an outlet arm having a fluid outlet means, said outlet arm forming a settling zone in said chamber having means for increasing the effective surface area of said settling zone, said outlet arm and said inlet arm being substantially parallel to each other with said inlet arm being spaced by a predetermined distance from and located above, said outlet arm, and a sludge collection zone located at the junction of said flocculation zone and said settling zone in said chamber, said sludge collection zone having at least one sludge removal conduct.
Claim 3
Dependent Claim
32 words
A clarifier as claimed in claim 1 wherein said flocculation zone includes a plurality of baffles spaced from each other and attached to opposite locations of said flocculation zone in staggered relationship.
Claim 4
Dependent Claim
25 words
A clarafier as claimed in claim 1 wherein the settling zone includes a plurality of substantially parallel tubes spaced from or attached to each other.
Claim 5
Dependent Claim
18 words
A clarifier as claimed in claim 1 wherein the settling zone includes a plurality of spaced parallel plates.
Claim 6
Dependent Claim
30 words
A clarifier as claimed in claim 1 wherein said inlet means includes an inlet pipe whereby influent is discharged through inlet apertures in a top part of the inlet arm.
Claim 7
Dependent Claim
21 words
A clarifier as claimed in claim 1 wherein said outlet arm has said outlet means located in a top portion thereof.
Claim 8
Dependent Claim
222 words
A treatment plant for treatment of water and other fluids comprising: a clarifier including, a housing, being closed and pressurizable, said housing having, a chamber, being generally channel shaped and substantially defining the periphery of said housing, a first portion of said housing forming an inlet arm having a fluid inlet means, said inlet arm forming a flocculation zone in said chambers, said flocculation zone having means for causing influent to travel a tortuous flow path, a second portion of said housing forming an outlet arm having a fluid outlet means, said outlet arm forming a settling zone in said chambers having means for increasing the effective surface area of said settling zone, said outlet arm and said inlet arm being substantially parallel to each other with said inlet arm being spaced by a predetermined distance from and located above, said outlet arm, and a sludge collection zone located at the junction of said flocculation zone and said settling zone in said chamber, said sludge collection zone having at least one sludge removal conduit; and means for feeding chemicals to said inlet arm including, means for pumping a coagulant under pressure through a conduit to said inlet arm, means for pumping an alkali under pressure through a conduit to said inlet arm, and means for metering soluble chlorine to said inlet arm.
Claim 9
Dependent Claim
222 words
A treatment plant for treatment of water and other fluids comprising: a clarifier including, a housing, being closed and pressurizable, said housing having, a chamber, being generally channel shaped and substantially defining the periphery of said housing, a first portion of said housing forming an inlet arm having a fluid inlet means, said inlet arm forming a flocculation zone in said chambers, said flocculation zone having means for causing influent to travel a tortuous flow path, a second portion of said housing forming an outlet arm having a fluid outlet means, said outlet arm forming a settling zone in said chambers having means for increasing the effective surface area of said settling zone, said outlet arm and said inlet arm being substantially parallel to each other with said inlet arm being spaced by a predetermined distance from and located above, said outlet arm, and a sludge collection zone located at the junction of said flocculation zone and said settling zone in said chamber, said sludge collection zone having at least one sludge removal conduit; and means for feeding chemicals to said inlet arm including, means for pumping a coagulant under pressure through a conduit to said inlet arm, means for pumping an alkali under pressure through a conduit to said inlet arm, and means for metering soluble chlorine to said inlet arm.
References Cited (Backward Citations)
US2425371A
Cited
US3615025A
Cited
US4136012A
Cited
US4172789A
Cited
US4199451A
Cited
GB2050338A
Cited
US4251361A
Cited
SU919700A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-03-16 | 1990-09-15 | 1991-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-03-16 | 1994-09-15 | 1995-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-03-16 | 1998-09-15 | 1999-03-17 | $7700.00 | Window Closed / Lapsed |