IP Library Granted Patent US 7,556,157
Granted Patent B2
US 7,556,157 · App. 11/974,512 · Granted Jul 7, 2009

Density current baffle for a clarifier tank

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Quick Facts
Patent No.
US 7,556,157
App. No.
11/974,512
Granted
Jul 7, 2009
Kind
B2
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 (12)

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.

2. 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.

3. 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.

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

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

6. 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.

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.

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.

Assignments (11)
SECURITY INTEREST Recorded May 7, 2026
From: NORTH AMERICAN FILTRATION HOLDINGS LLC; NAF WATER FILTRATION ENTERPRISES LLC; NAF WATER FILTRATION LLC; NAF WATER SOLUTION ENTERPRISES LLC; CHEMTRAC LLC; NAF AQUATICS LLC
To: JPMORGAN CHASE BANK, N.A.
Reel/Frame 074586/0152 →
NUNC PRO TUNC ASSIGNMENT Recorded Nov 26, 2025
From: NEFCO SYSTEMS, INC.
To: NAF CONTRCO LLC
Reel/Frame 073041/0957 →
NUNC PRO TUNC ASSIGNMENT Recorded Nov 26, 2025
From: NAF CONTRCO LLC
To: NORTH AMERICAN FILTRATION HOLDINGS LLC
Reel/Frame 073042/0288 →
NUNC PRO TUNC ASSIGNMENT Recorded Nov 26, 2025
From: NORTH AMERICAN FILTRATION HOLDINGS LLC
To: NORTH AMERICAN FILTRATION ENTERPRISES LLC
Reel/Frame 073042/0447 →
NUNC PRO TUNC ASSIGNMENT Recorded Nov 26, 2025
From: NAF WATER FILTRATION ENTERPRISES LLC
To: NAF WATER FILTRATION LLC
Reel/Frame 073042/0701 →
RELEASE OF SECURITY INTEREST Recorded Nov 3, 2025
From: LIVE OAK BANKING COMPANY
To: NORTH AMERICAN FILTRATION HOLDINGS LLC; NAF WATER FILTRATION ENTERPRISES LLC; NAF AQUATICS ENTERPRISES LLC; NAF AQUATICS LLC; CHEMTRAC LLC; NAF WATER SOLUTIONS ENTERPRISES LLC; NAF WATER FILTRATION LLC
Reel/Frame 072760/0571 →
SECURITY INTEREST Recorded Apr 6, 2022
From: NORTH AMERICAN FILTRATION HOLDINGS LLC; NAF WATER FILTRATION ENTERPRISES LLC; NAF WATER SOLUTIONS ENTERPRISES LLC; NAF AQUATICS ENTERPRISES LLC; NAF WATER FILTRATION LLC; CHEMTRAC LLC; NAF AQUATICS LLC
To: LIVE OAK BANKING COMPANY
Reel/Frame 059509/0921 →
RELEASE OF SECURITY INTEREST Recorded Mar 29, 2022
From: SCHALLER, EARLE
To: NEFCO SYSTEMS, INC.
Reel/Frame 059420/0643 →
SECURITY INTEREST Recorded Jul 27, 2016
From: NEFCO SYSTEMS, INC.
To: SCHALLER, EARLE
Reel/Frame 039272/0133 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 18, 2016
From: SCHALLER, EARLE
To: NEFCO SYSTEMS, INC.
Reel/Frame 039175/0846 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 21, 2016
From: SCHALLER, ELAINE
To: SCHALLER, EARLE
Reel/Frame 038973/0993 →
Continuity (2)
Provisional Application 6089932700 · Feb 2, 2007
Related Publication 20080185334A1 · Aug 7, 2008