Gas separation: processes – With control responsive to sensed condition – Electric or electrostatic field
Reexamination Certificate
2007-11-13
2007-11-13
Chiesa, Richard L. (Department: 1724)
Gas separation: processes
With control responsive to sensed condition
Electric or electrostatic field
C055S282000, C055S302000, C095S019000, C095S020000, C095S059000, C095S068000, C095S074000, C096S018000, C096S030000, C096S031000, C096S050000
Reexamination Certificate
active
11257582
ABSTRACT:
A method for operating a filter assembly having a filter medium includes applying a constant or nearly constant static DC potential to dust entering the filter assembly and the filter medium, passing dust-laden gas through the filter medium in a first direction through the filter assembly while the filter medium is statically charged with the DC potential, measuring pressure drop through the filter assembly, and, in response to the pressure drop meeting a preset limit, reversing the polarity of the DC potential to thereby allow dust particles on the filter medium to drop off the filter medium.
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Portions of the Max-9 Website; BHA Group, Inc. Webpage; Copyright 1995-2005 General Electric Company; 9 sheets.
EP Search Report, App. No. 06255451.4 (Jan. 17, 2007).
Armstrong Teasdale LLP
Chiesa Richard L.
General Electric Company
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