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Class Information
Number: 55/478
Name: Gas separation > With separate flow line access means or filter media passage means offset to flow path
Description: Apparatus having (1) means apart from the flow line walls or (2) modifications, (e.g. openings) in the flow line walls which permit (a) admittance thereto, or (b) filter material or unit replacement without recourse to a separation of the flow line in the direction of normal gas flow.










Sub-classes under this class:

Class Number Class Name Patents
55/480 Access means is clamping or coupling means for unit filter media 166
55/479 For discrete filter particles 110
55/481 Unit transversely slidable through flow path 291


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8657900 Filter device and main filter element for a filter device Feb. 25, 2014
8647405 Filter housing for accommodating a plurality of filter sizes Feb. 11, 2014
8580005 Tractor cab air filter housings Nov. 12, 2013
8568516 Biosafety cabinet filter removal devices, systems, and methods Oct. 29, 2013
8449638 Filter element, air cleaner, and methods May. 28, 2013
8388714 Bag filtration system for a forced air furnace Mar. 5, 2013
8246702 Filter mechanism for internal combustion engines Aug. 21, 2012
8177874 Filter assembly May. 15, 2012
8177971 Filter assembly May. 15, 2012
8163053 Housing assembly with bagging ring Apr. 24, 2012
8157882 Hanging air filter Apr. 17, 2012
8152885 Air passage device having improved accessibility of the filter mat Apr. 10, 2012
8080079 Air filter housing with guides for air filter units Dec. 20, 2011
8057565 Air conditioning apparatus Nov. 15, 2011
8002867 Housing assembly with bagging ring Aug. 23, 2011
8002868 Dehumidifier Aug. 23, 2011
7976602 Filter, especially air filter Jul. 12, 2011
7929300 Filter retention in electronics chassis Apr. 19, 2011
7905947 Method and apparatus for removing contaminates from air Mar. 15, 2011
7850751 Access cover for piping or vessel Dec. 14, 2010
7771501 Blower having oil-mist filtering function Aug. 10, 2010
7670414 Filter unit of air conditioner Mar. 2, 2010
7645313 Wound filter element Jan. 12, 2010
7621982 Liquid-gas separator for direct liquid feed fuel cell Nov. 24, 2009
7611568 Liquid-gas separator for direct liquid feed fuel cell Nov. 3, 2009
7588613 Movable filter system Sep. 15, 2009
7572308 Mechanical system for installing and removing contacting devices from a chemical process tower Aug. 11, 2009
7364602 Air cleaner assembly Apr. 29, 2008
7323028 Air intake filter screen assembly Jan. 29, 2008
7309369 Filter module Dec. 18, 2007
7235121 Externally removable vacuum cleaner filter apparatus Jun. 26, 2007
7115156 Air filter system Oct. 3, 2006
7090710 Air intake duct for vehicle Aug. 15, 2006
7052523 Bagless canister vacuum cleaner May. 30, 2006
7041146 Pre-filters for engine air cleaning systems May. 9, 2006
6974491 Cartridge locking device and method Dec. 13, 2005
6949131 Ventilator or ventilating apparatus with thermal exchanger and air filter Sep. 27, 2005
6808547 Air cleaner Oct. 26, 2004
6733574 Filter apparatus May. 11, 2004
6712868 Bagless canister vacuum cleaner Mar. 30, 2004
6648947 Method and apparatus for replacing a filter Nov. 18, 2003
6508865 Method and apparatus for compressing atmospheric air, and corresponding air distillation and gas turbine installations Jan. 21, 2003
6419720 Modular power coating booth Jul. 16, 2002
6159259 Filter for compressed air Dec. 12, 2000
6019822 Apparatus for air dehumidification having a unitary casing for a cyclone separator, a primary filter, a secondary filter, and a separation membrane element Feb. 1, 2000
5968215 Combined inlet outlet air filter element Oct. 19, 1999
5931988 Cabinet filter assembly and methods Aug. 3, 1999
5888259 Filter device for compressed air Mar. 30, 1999
5776211 Jacktop cleaner Jul. 7, 1998
5683495 Device for the filtration of a flow of air, in particular for the heating and/or air conditioning plant in a motor vehicle Nov. 4, 1997

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