# US 2008/0185334 A1 · Density current baffle for a clarifier tank

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- Number: US 2008/0185334 A1
- Document ID: US20080185334A1
- Status: Published application
- Kind: A1
- Application number: 11/974,512
- Filed: 2007-10-12
- Published: 2008-08-07
- Earliest claimed: 2007-02-02
- Inventors: Earle Schaller; Elaine Schaller
- Web page: https://patentgrep.com/patent/US20080185334A1

## CPC

- B01D 21/0087: {Settling tanks provided with means for ensuring a special flow pattern, e.g. even inflow or outflow (B01D21/2411 takes precedence)}
- B01D 21/0042: {Baffles or guide plates}
- B01D 21/0075: {Contact surfaces having surface features}
- B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28)

## Abstract

A density current baffle for use in a clarifier tank has a first baffle portion having a lower end, an upper end and an intermediate central portion. The lower end of the baffle portion is coupled to a side wall of the clarifier tank. The upper end of the baffle portion being disposed away from the side wall of the clarifier tank. The intermediate central portion between the lower end and the upper end, the baffle portion is curved such that the upper end curves inward towards the center of the tank.

## Claims

### Claim 1

A density current baffle for use in a clarifier tank, said density baffle comprising:
a first baffle portion having a lower end, an upper end and an intermediate central portion, said lower end of said baffle portion being coupled to a side wall of said clarifier tank, said upper end of said baffle portion being disposed away from said side wall of said clarifier tank, wherein at said intermediate central portion between said lower end and said upper end, said baffle portion is curved such that said upper end curves inward towards the center of said tank.

### Claim 2 (depends on 1)

The density current baffle as claimed in claim 1, wherein said lower end of said baffle portion further maintains an angled attachment portion for attachment to said sidewall of said tank.

### Claim 3 (depends on 1)

The density current baffle as claimed in claim 1, wherein said upper end is provided with an end flange for receiving a mounting bracket, said mounting bracket having a first end coupled to said end flange and a second end coupled to said side wall of said tank wall.

### Claim 4 (depends on 1)

The density current baffle as claimed in claim 1, wherein said intermediate central portion defines a radius in the range of about 30 inches.

### Claim 5 (depends on 1)

The density current baffle as claimed in claim 1, wherein said lower end of said first baffle portion is spaced apart from said tank wall, thereby defining a gap.

### Claim 6 (depends on 3)

The density current baffle as claimed in claim 3, wherein said mounting bracket is a solid bracket.

### Claim 7

A density current baffle for use in a clarifier tank, said density baffle comprising:
a downwardly angled panel member having a first end coupled to said tank wall and a second end extending away from said tank wall; and
a baffle portion having a lower end and an upper end coupled to said second end of said downwardly angled panel member, said baffle portion defining an intermediate central portion, said lower end of said baffle portion being coupled to a side wall of said clarifier tank, said upper end of said baffle portion being disposed away from said side wall of said clarifier tank and coupled to said second end of said downwardly angled panel member, wherein at said intermediate central is curved such that said upper end curves inward towards the center of said tank.

### Claim 8

A density current baffle for use in a clarifier tank, said tank having a downwardly angled panel member having a first end coupled to said tank wall and a second end extending away from said tank wall, said density baffle comprising:
a baffle portion having a lower end and an upper end coupled to said second end of said downwardly angled panel member, said baffle portion defining an intermediate central portion, said lower end of said baffle portion being coupled to a side wall of said clarifier tank, said upper end of said baffle portion being disposed away from said side wall of said clarifier tank and coupled to the second end of said downwardly angled panel member, wherein at said intermediate central is curved such that said upper end curves inward towards the center of said tank.