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Class Information
Number: 422/177
Name: Chemical apparatus and process disinfecting, deodorizing, preserving, or sterilizing > Chemical reactor > Waste gas purifier > Including solid, extended surface, fluid contact reaction means; e.g., inert raschig rings, particulate absorbent, particulate or monolithic catalyst, etc.
Description: Apparatus including solid extended surface, fluid contact reaction means; i.e., means providing a relatively large solid contact surface area within the reaction zone wherein the large surface area presents multiple reaction sites for contact by the reaction mixture and, thereby, enhance the rate and/or the completeness of the purification reaction, including; e.g., inert Raschig rings, particulate absorbent, etc.










Sub-classes under this class:

Class Number Class Name Patents
422/178 And contact regenerating means or means for cleaning an internal surface of the reaction chamber 306
422/181 Fixed annularly shaped bed of contact material and means directing gas therethrough substantially perpendicular to longitudinal axis of bed 265
422/179 Fixed bed with resilient or differential thermal expansion compensating bed support means 595
422/180 Unitary (i.e., nonparticulate) contact bed (e.g., monolithic catalyst bed, etc.) 1,511


Patents under this class:

Patent Number Title Of Patent Date Issued
8709365 Particulate filter with hydrogen sulphide block function Apr. 29, 2014
8709349 Wall flow type exhaust gas purification filter Apr. 29, 2014
8702832 Securable mounting material and method of making and using the same Apr. 22, 2014
8701387 Exhaust gas treatment device Apr. 22, 2014
8691157 Honeycomb structure and exhaust gas converter Apr. 8, 2014
8691156 Preferential oxidation reactor and fuel cell system using the same Apr. 8, 2014
8685331 Honeycomb structural body and exhaust gas conversion apparatus Apr. 1, 2014
8685140 Particle filter and a method for operating a particle filter Apr. 1, 2014
8679432 Adsorber having inner coating Mar. 25, 2014
8679418 Substrate fabrication Mar. 25, 2014
8679414 Desulfurization-denitration apparatus for exhaust gas Mar. 25, 2014
8679209 Pulsed plasma regeneration of a particulate filter Mar. 25, 2014
8673064 Partial wall-flow filter and method Mar. 18, 2014
8673045 Cordierite aluminum magnesium titanate compositions and ceramic articles comprising same Mar. 18, 2014
8673044 Process for producing aluminum titanate-based ceramics body Mar. 18, 2014
8673043 Fluid filter Mar. 18, 2014
8668889 Air pollution control system and method Mar. 11, 2014
8668877 Diesel oxidation catalyst articles and methods of making and using Mar. 11, 2014
8668876 Configuration having two interconnected exhaust gas treatment devices Mar. 11, 2014
8668757 Method for producing a ceramic filter element and filter element Mar. 11, 2014
8663586 High performance mercury capture Mar. 4, 2014
8663567 Catalyst for removing nitrogen oxides Mar. 4, 2014
8663357 Holding sealing material, exhaust gas purifying apparatus, and method for manufacturing exhaust gas purifying apparatus Mar. 4, 2014
8663356 Honeycomb structure Mar. 4, 2014
8661788 Exhaust aftertreatment systems that include an ammonia-SCR catalyst promoted with an oxygen storage material Mar. 4, 2014
8657914 Exhaust gas purifying filter Feb. 25, 2014
8652410 Control method and arrangement for selective catalytic reduction Feb. 18, 2014
8641791 Method of supplying iron to the particulate trap of a diesel engine exhaust Feb. 4, 2014
8640440 Removal of particulates from the exhaust gas of internal combustion engines operated with a predominantly stoichiometric air/fuel mixture Feb. 4, 2014
8636821 Ceramic honeycomb structure and its production method Jan. 28, 2014
8632620 Holding sealing material, exhaust gas purifying apparatus, and method for manufacturing exhaust gas purifying apparatus Jan. 21, 2014
8632619 Filter element, in particular for filtering exhaust gases of an internal combustion engine Jan. 21, 2014
8629078 Composite oxide for exhaust gas purifying catalyst and exhaust gas purifying catalyst, and diesel exhaust gas purifying filter Jan. 14, 2014
8621851 Particle filter arrangement Jan. 7, 2014
8617494 Condenser and method for cleaning flue gases Dec. 31, 2013
8617295 Active-particulate air filter having monolith primary filter and polishing filter Dec. 31, 2013
8613848 Concurrent O.sub.2 generation and CO.sub.2 control for advanced life support Dec. 24, 2013
8609581 Honeycomb structure and honeycomb catalytic body Dec. 17, 2013
8609032 Porous ceramic honeycomb articles and methods for making the same Dec. 17, 2013
8609026 Conversion of nitrogen dioxide (NO.sub.2) to nitric oxide (NO) Dec. 17, 2013
8608835 Exhaust gas purification system for an internal combustion engine Dec. 17, 2013
8608820 Filter for filtering particulate matter from exhaust gas emitted from a compression ignition engine Dec. 17, 2013
8608819 Filter device for filtering gaseous fluids Dec. 17, 2013
8591849 On demand generation of ammonia for small industrial and commercial boilers Nov. 26, 2013
8591623 Honeycomb manufacturing method using ground nut shells and honeycomb body produced thereby Nov. 26, 2013
8591614 Method of manufacturing exhaust gas purifying apparatus and exhaust gas purifying apparatus Nov. 26, 2013
8585795 Ceramic nanofibers for liquid or gas filtration and other high temperature (> 1000.degree. C.) applications Nov. 19, 2013
8580009 Honeycomb filter Nov. 12, 2013
8574335 Holding sealing material, exhaust gas purifying apparatus, and method of manufacturing exhaust gas purifying apparatus Nov. 5, 2013
8574334 Mat, holding sealing material, method for producing mat, and exhaust gas purifying apparatus Nov. 5, 2013











 
 
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