Gas separation – With nonliquid cleaning means for separating media – With heating or cooling means
Reexamination Certificate
2008-08-14
2011-10-04
Griffin, Walter D (Department: 1774)
Gas separation
With nonliquid cleaning means for separating media
With heating or cooling means
C055S522000, C055S523000, C055S524000, C060S297000, C422S169000, C422S170000, C422S171000, C422S172000, C422S177000, C422S178000, C422S179000, C422S180000, C422S181000, C422S182000
Reexamination Certificate
active
08029582
ABSTRACT:
An assembly includes a particulate matter (PM) filter that comprises an upstream end for receiving exhaust gas, a downstream end and multiple zones. An absorbing layer absorbs microwave energy in one of N frequency ranges and is arranged with the upstream end. N is an integer. A frequency selective filter has M frequency selective segments and receives microwave energy in the N frequency ranges. M is an integer. One of the M frequency selective segments permits passage of the microwave energy in one of the N frequency ranges and does not permit passage of microwave energy in the other of the N frequency ranges.
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Gonze Eugene V.
Gregoire Daniel J.
Kirby Kevin W.
Paratore, Jr. Michael J.
Phelps Amanda
GM Global Technology Operations LLC
Griffin Walter D
Orlando Amber
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