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Class Information
Number: 210/167.27
Name: Liquid purification or separation >
Description:










Sub-classes under this class:

Class Number Class Name Patents
210/138 With time control 420
210/141 With program actuator 121
210/143 Automatic control 1,120
210/150 With gas-liquid surface contact means 786
210/153 Structural installation 72
210/173 Comminuting 156
210/175 With heater or heat exchanger 402
210/188 With gas separator 698
210/189 Plural chambers with movement of granules therebetween 181
210/190 With external supply means for regenerating medium, e.g., water softening system 113
210/192 With preliminary chemical manufacture 590
210/193 With precoat adding or applying means 140
210/194 Recirculation 445
210/198.1 With means to add treating material 754
210/222 Magnetic 1,017
210/224 Sectional chamber press type 67
210/232 With repair or assembling means 2,127
210/239 Convertible 54
210/241 With movable support 454
210/243 Electrical insulating or electricity discharging 493
210/244 Portable receptacle with hood or closure 111
210/247 Filtrate splash plate and/or deflector 94
210/248 With drip, overflow or content draining feature 379
210/249 Bracket or leg support for static separator assembly 157
210/251 Combined 259
210/252 Serially connected distinct treating with or without storage units 389
210/263 Particulate material type separator, e.g., ion exchange or sand bed 273
210/294 Diverse distinct separators 95
210/321.6 Casing divided by membrane into sections having inlet(s) and/or outlet(s) 599
210/322 Plural distinct separators 92
210/348 Filter 143
210/511 Liquid as separating medium 269
210/512.1 Tangential flow or centrifugal fluid action 1,025
210/513 Gravitational separator 224
210/541 Adjuncts 294
210/542 Miscellaneous 112
210/600 Processes 115
210/85 With alarm, indicator, register, recorder, signal or inspection means 777
210/900 Ultra pure water (e.g., conductivity water) 148
210/901 Specified land fill feature (e.g., prevention of ground water fouling) 92
210/902 Materials removed 44
210/918 Miscellaneous specific techniques 27
210/928 Paper mill waste (e.g., white water, black liquor, etc.) treated 269
210/929 Hemoultrafiltrate volume measurement or control processes 150
210/930 Paint detackifying 88
210/96.1 Constituent mixture variation responsive 737
210/97 Flow, fluid pressure or material level, responsive 582
210/DIG.13 Part flow-full flow 47
210/DIG.17 Twist-on 272
210/DIG.3 Belt alignment 27
210/DIG.5 Coalescer 338
210/DIG.6 Dehydrators 66
210/DIG.7 Drier blocks 12
210/DIG.8 Fat fryer 117
210/DIG.9 Floating cover 24


Patents under this class:

Patent Number Title Of Patent Date Issued
8702981 Wedge-shaped and stackable filter cartridges Apr. 22, 2014
8303811 Aquarium filter element with removable insert Nov. 6, 2012
7927483 Filter with self-positioning cartridge arrangement Apr. 19, 2011
7918995 Filter device for water tank Apr. 5, 2011
7771592 Aquarium filter Aug. 10, 2010
7670484 Filter cartridge construction with carbon profile Mar. 2, 2010
7658842 Filter cartridge assembly with water collection Feb. 9, 2010
7651609 Filter with self-positioning cartridge arrangement Jan. 26, 2010
7651610 Water aerating and dirt collecting assembly for aquarium Jan. 26, 2010
7638044 Aquarium filter housing with rounded bottom Dec. 29, 2009
7628913 Aquarium filter cartridge and filtration system Dec. 8, 2009
7618534 Aquarium filter Nov. 17, 2009
7601258 Aquarium filter water return chamber Oct. 13, 2009
7601259 Aquarium filter Oct. 13, 2009
7594998 Aquarium filter assembly and filter element Sep. 29, 2009
7569139 Aquarium filter assembly and filter element Aug. 4, 2009
7488417 Aquarium filter assembly Feb. 10, 2009
7429321 Aquarium filter cartridge and filtration system Sep. 30, 2008
7425274 Aquarium filter unit Sep. 16, 2008
7416659 Filter apparatus with fluid bypass Aug. 26, 2008
7316775 Air-powered filter arrangement Jan. 8, 2008
7316776 Aquarium filtration system with bio-reactor Jan. 8, 2008
7273547 External type filtration device Sep. 25, 2007
7252762 Filter housing arrangement with cartridge guides Aug. 7, 2007
7241379 Filter housing arrangement Jul. 10, 2007
7179373 Removing foreign matter from aquarium water Feb. 20, 2007











 
 
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