Edward J Washington

Title: Edward J. Washington and Filter Life Indicator Technology.

Introduction

Edward J. Washington is an inventor associated with Wrentham, Massachusetts, and Entegris, Inc. His patent work addresses a practical challenge in filtration: assessing a filter’s condition by testing a nearby media sample.

Latest Patents

Washington is credited with 1 patent: “Filter Life Indicator Media and Holder.” The invention describes a media sample holder with a base and retention assemblies featuring retaining tabs and flexible release lever arms. These components allow the holder to attach to an adapter and position a media sample on or near a filter.

The sample can have a removal-efficiency curve different from the filter’s. After exposure near the filter for a period of time, the sample can be tested to help assess the filter’s status or remaining life. The assessment uses the relationship between the filter’s exposure, remaining life, or removal efficiency and the sample’s measured exposure or removal efficiency.

Career Highlights

Washington’s listed patent reflects work on a holder designed to make filter monitoring more practical. By enabling a sample to be positioned near a filter and later tested, the invention provides a way to evaluate filter performance without relying solely on direct measurement of the filter itself.

Collaborations

Washington is associated with Entegris, Inc. His listed coworkers include Evan Warniers and John C. Gaudreau.

Conclusion

Edward J. Washington’s patent combines a sample holder with a testing approach for evaluating filter condition, highlighting his contribution to filter monitoring technology.