Metal fluoride trap

Details Metal fluoride trap Metal fluoride trap

2008-10-30

2010-10-26

Chiesa, Richard L (Department: 1797)

Gas separation: processes

Electric or electrostatic field

Including baffling, deflection, or restriction of gas flow

C055S510000, C055SDIG007, C055SDIG038, C096S060000, C096S062000, C096S069000, C096S083000, C096S098000, C264S413000, C264S480000, C264SDIG048, C372S059000

Reexamination Certificate

active

07819945

ABSTRACT:
A method for making a metal fluoride trap including: assembling a precipitation tube assembly including a plurality of precipitation tubes supported between a first tube end support and a second tube end support; assembling a precipitation tube, flowsheet and filter media assembly including: wrapping a flowsheet around at least one full circumference of the plurality of precipitation tubes, wherein the flowsheet has a width less than a length of the plurality of precipitation tubes between the first tube end support and the second tube end support; and wrapping a filter media around the wrapped flowsheet, wherein the filter media and the flowsheet are wrapped so as to have a diameter less than an inner diameter of an outer casing of the metal fluoride trap; inserting the precipitation tube, flowsheet and filter media assembly into the outer casing of the metal fluoride trap; allowing the flowsheet to expand; and pressing the filter media between the flowsheet and an inner surface of the outer casing of the metal fluoride trap. A method of filtering gas in a metal fluoride trap is also disclosed. A metal fluoride trap apparatus is also disclosed.

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