Gas separation – Specific media material – Ceramic or sintered
Reexamination Certificate
2005-07-19
2005-07-19
Smith, Duane (Department: 1724)
Gas separation
Specific media material
Ceramic or sintered
C055S282200, C055S282300, C055S385300, C055S524000, C055SDIG001, C055SDIG003, C060S311000, C096S108000
Reexamination Certificate
active
06918941
ABSTRACT:
A self-cleaning porous cermet material, filter and system utilizing the same may be used in filtering particulate and gaseous pollutants from internal combustion engines having intermetallic and ceramic phases. The porous cermet filter may be made from a transition metal aluminide phase and an alumina phase. Filler materials may be added to increase the porosity or tailor the catalytic properties of the cermet material. Additionally, the cermet material may be reinforced with fibers or screens. The porous filter may also be electrically conductive so that a current may be passed therethrough to heat the filter during use. Further, a heating element may be incorporated into the porous cermet filter during manufacture. This heating element can be coated with a ceramic material to electrically insulate the heating element. An external heating element may also be provided to heat the cermet filter during use.
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Battelle Energy Alliance, LLC
Greene Jason M.
Smith Duane
Trask Britt P.C.
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