Invention Grant
- Patent Title: Filter life indicator media and holder
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Application No.: US17124375Application Date: 2020-12-16
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Publication No.: US11679385B2Publication Date: 2023-06-20
- Inventor: John C. Gaudreau , Evan Warniers , Edward J. Washington
- Applicant: ENTEGRIS, INC.
- Applicant Address: US MA Billerica
- Assignee: ENTEGRIS, INC.
- Current Assignee: ENTEGRIS, INC.
- Current Assignee Address: US MA Billerica
- Main IPC: B01D46/00
- IPC: B01D46/00 ; G01N15/08 ; B01L3/00

Abstract:
A media sample holder includes a base and a plurality of retention assemblies including retaining tabs and opposing flexible release lever arms, configured to allow attachment of the base to an attachment adapter. The media sample holder can attach a media sample on or near a filter. The media sample holder held in the media sample holder can have a different removal efficiency curve than a removal efficiency curve of the filter. The media sample can be placed at or near the filter for a period of time, then tested to determine the status and/or life of the filter based on the relationship between the remaining life, exposure, or removal efficiency of the filter and the exposure or removal efficiency of the tested media sample.
Public/Granted literature
- US20210187494A1 FILTER LIFE INDICATOR MEDIA AND HOLDER Public/Granted day:2021-06-24
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