Filtering devices having features not specifically covered by groups , or for applications not specifically covered by groups; Auxiliary devices for filtration; Filter housing constructions

Classification Context

Section:

PERFORMING OPERATIONS; TRANSPORTING

Class:

PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Subclass:

SEPARATION

Child Classifications

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• B01D 35/01 Devices for the removal of gas, e.g. air purge systems
• B01D 35/02 Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
• B01D 35/05 Floating filters
• B01D 35/06 Filters making use of electricity or magnetism
• B01D 35/1 Brush filters
• B01D 35/12 Devices for taking out of action one or more units of multi-unit filters, e.g. for regeneration
• B01D 35/14 Safety devices specially adapted for filtration; Devices for indicating clogging
• B01D 35/16 Cleaning-out devices
• B01D 35/18 Heating or cooling the filters
• B01D 35/2 Vibrating the filters
• B01D 35/22 Directing the mixture to be filtered on to the filters in a manner to clean the filters
• B01D 35/24 Providing loose granular material to scratch the filters clean
• B01D 35/26 Filters with built-in pumps
• B01D 35/28 Strainers not provided for elsewhere
• B01D 35/3 Filter housing constructions