IP Library Granted Patent US 8,541,194
Granted Patent B2
US 8,541,194 · App. 10/792,937 · Granted Sep 24, 2013

Detecting micro-organisms in an electrocoating process

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Quick Facts
Patent No.
US 8,541,194
App. No.
10/792,937
Granted
Sep 24, 2013
Kind
B2
Abstract

Use of a micro-organism detection device to rapidly evaluate the presence of microorganisms in an electrocoating process.

Claims (13)

1. A method, comprising:

providing a continuous electrocoating operation, wherein the electrocoating operation comprises a plurality of process areas comprising an electrocoat material, wherein the process areas comprise a first process area and at least one other process area, and wherein the at least one process areas is adjacently situated to the first process area;

taking a first sample of electrocoat material from the first process area and determining with a luminometer a level of microorganisms in the first process area, wherein the luminometer measures illumination emitted from ATP in a population of microorganisms in the first sample, and wherein the level of microorganisms in the first sample is determined in less than 1 hour;

taking at least one second sample of electrocoat material from the at least one other process area and determining with a luminometer a level of microorganisms in the at least one other process area, wherein the luminometer measures illumination emitted from ATP in a population of microorganisms in the second sample, and wherein the level of microorganisms in the second sample is determined in less than 1 hour;

comparing the level of microorganisms in the first sample to the level of microorganisms in the second sample(s) until a source of microorganism growth in the electrocoating operation is identified; and

treating the source of microorganism growth,

2. The method according to claim 1 , wherein the level of microorganisms in the sample is determined in less than 5 minutes.

3. The method according to claim 1 , wherein the samples are obtained from at least one of a liquid stream source within the process area and a surface in the process area.

4. The method according to claim 1 , wherein the samples comprise solid matter having an average density of about 1 g/cm 3 to about 4 g/cm 3 .

5. The method according to claim 1 , wherein the sample comprises less than about 10 wt % solids.

6. The method according to claim 1 , wherein the sample comprises less than about 4 wt % solids.

7. The method according to claim 1 , wherein the sample comprises less than about 2 wt % solids.

8. The method according to claim 1 , wherein the luminometer is integrated with a computer-based monitoring system to communicate at least one output therefrom.

Assignments (8)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 6, 2023
From: THE SHERWIN-WILLIAMS HEADQUARTERS COMPANY
To: SWIMC LLC
Reel/Frame 063275/0494 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 11, 2022
From: THE SHERWIN-WILLIAMS COMPANY
To: THE SHERWIN-WILLIAMS HEADQUARTERS COMPANY
Reel/Frame 060366/0979 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 30, 2021
From: THE VALSPAR CORPORATION
To: THE SHERWIN-WILLIAMS COMPANY
Reel/Frame 057204/0946 →
MERGER Recorded Oct 29, 2020
From: ENGINEERED POLYMER SOLUTIONS, INC.
To: THE VALSPAR CORPORATION
Reel/Frame 054443/0772 →
MERGER Recorded Sep 2, 2020
From: VALSPAR SOURCING, INC.
To: ENGINEERED POLYMER SOLUTIONS, INC.
Reel/Frame 053826/0606 →
NUNC PRO TUNC ASSIGNMENT Recorded Mar 24, 2020
From: THE SHERWIN-WILLIAMS COMPANY
To: VALSPAR SOURCING, INC.
Reel/Frame 052217/0640 →
CORRECTIVE ASSIGNMENT TO CORRECT THE INCORRECT PATENT NO. 8465946 PREVIOUSLY RECORDED AT REEL: 045281 FRAME: 0529. ASSIGNOR(S) HEREBY CONFIRMS THE MERGER. Recorded May 4, 2018
From: VALSPAR SOURCING, INC.
To: THE SHERWIN-WILLIAMS COMPANY
Reel/Frame 046087/0150 →
MERGER Recorded Feb 8, 2018
From: VALSPAR SOURCING. INC
To: THE SHERWIN-WILLIAMS COMPANY
Reel/Frame 045281/0529 →