Gas separation: processes – Filtering
Reexamination Certificate
2006-05-09
2006-05-09
Greene, Jason M. (Department: 1724)
Gas separation: processes
Filtering
C095S001000, C095S002000, C095S004000, C095S005000, C095S008000, C095S014000, C095S019000, C095S020000, C095S278000, C096S015000, C096S018000, C096S019000, C096S020000, C096S054000, C096S076000, C096S080000, C096S417000, C096S420000, C096S421000, C055S282200, C055S282300, C055S385300, C055S523000, C055SDIG010, C055SDIG030, C060S275000, C060S311000
Reexamination Certificate
active
07041157
ABSTRACT:
An apparatus for separating and converting exhaust particulates from a stream of exhaust gas, especially a diesel engine, into gaseous substances, in which the exhaust gas is guided through a honeycomb filter (6) made from a porous ceramic material whose axially extending channels (1, 2) are open merely at one face side of the filter and are closed off at the respective other face side, and a voltage is applied to electrodes (3, 4) extending parallel to the channels (1, 2) of the honeycomb filter (6). The closure of the channels (1, 2) at the face side is made in such a way that the channels (1, 2) each extending at the same normal distance from one of the electrodes (3, 4) are either all open or all closed off at their face side (9). The channels (1, 2) are mutually offset in a brickwork-like way. A sequence of voltage pulses is applied to the electrodes (3, 4) which produces electron emissions in the channels (1, 2), with pauses remaining between the individual pulses in which an electron emission is omitted.
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Collard & Roe P.C.
Greene Jason M.
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