Patent ID: 8840960
Filing Date: 2014-09-23
Classification: B08B,C04B,F01D

Abstract:
1. A method of cleaning a carbon composite seal member, comprising: (a) soaking the carbon composite seal member in deionized water; (b) removing the carbon composite seal member from the deionized water and brushing the carbon composite seal member to remove air bubbles therefrom; (c) applying an acetone cleaning agent to the carbon composite seal member to remove debris therefrom; (d) depositing a coating on the carbon composite seal member and (e) reusing the acetone cleaning agent to clean subsequent carbon composite seal members and establishing a threshold contamination level of the acetone cleaning agent based upon a measured characteristic of the acetone cleaning agent wherein said characteristic includes rejecting use of said acetone cleaning agent if a specific gravity of said acetone cleaning agent is above about 0.87.