Measuring and testing – Sampler – sample handling – etc. – With constituent separation
Reexamination Certificate
2007-05-01
2007-05-01
Williams, Hezron (Department: 2856)
Measuring and testing
Sampler, sample handling, etc.
With constituent separation
C073S037000, C073S040000, C073S049700, C055S385300
Reexamination Certificate
active
11197272
ABSTRACT:
A filter housing assembly for exhaust applications and method of testing the same is provided. In one embodiment, the filter housing assembly includes a housing having a filter receiving aperture, a first air flow port configured to couple the housing to an exhaust system and a second air flow port sized to deliver a flow capable of providing at least 75 feet per minute of air flow through the filter receiving aperture. A filter element is sealingly disposed in the filter receiving aperture of the housing. A cap is provided that operably seals the second air flow port when not in use. In another embodiment, a method for testing a filter housing assembly for exhaust applications includes providing air through a filter element disposed in the housing in a direction opposite an operational air flow direction, leak testing the filter element from a roomside of the filter element, and, flowing air through the filter element after leak testing in the operational direction.
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ESH manual, “Work Enclosures and Local Exhaust Systems for Toxic and Radioactive Materials”, vol. II: Health & Safety—Controls and Hazards—> Part 12: General H&S Controls—Safety Equipment and Facilities, Jun. 19, 2001. http://www.llnl.gov/es—and—h/hsm/doc—12.04/doc12-04.html.
“Pharmaseal”, Product sheet 3420-0303, Camfil Farr, Inc. Washington NC, © Camfil Farr, Date Unknown.
Huza Mark
Morse Thomas C.
Camfil Farr Inc.
Patterson & Sheridan LLP
Shah Samir M.
Taboada, Esq. Keith
Williams Hezron
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