Patent application number | Description | Published |
20110072971 | ACTIVE-PARTICULATE AIR FILTER HAVING MONOLITH PRIMARY FILTER AND POLISHING FILTER - An air filter that includes a primary filter and a polishing filter. The primary filter comprises a monolith | 03-31-2011 |
20110240027 | SHAPED LAYERED PARTICLE-CONTAINING NONWOVEN WEB - A filter element includes a porous non-woven web. The porous non-woven web includes a first layer with first thermoplastic elastomeric polymer fibers and first active particles disposed therein and a second layer including second thermoplastic elastomeric polymer fibers and second active particles disposed therein. The web possesses a three-dimensional deformation and the first layer is contiguous with the second layer across the deformation. | 10-06-2011 |
20110240029 | FILTER ELEMENT UTILIZING SHAPED PARTICLE-CONTAINING NONWOVEN WEB - A filter element utilizes a porous shape-retaining self-supporting non-woven web. The web includes thermoplastic elastomeric polymer fibers and active particles disposed in the fibers. The web also possesses a three-dimensional deformation. | 10-06-2011 |
20110283505 | METHOD OF MAKING FILTER CARTRIDGE HAVING ROLL-BASED HOUSING SIDEWALL - A method of making a filter cartridge, which method includes: (a) providing first and second filter media layers that each contain active particulate that is bonded together and that each comprise a perimeter; (b) stacking the filter media layers in a spaced apart relationship; and (c) securing a roll based housing sidewall to at least a portion of the perimeter of each filter media layer. The resulting filter cartridge is light in weight but has increased volume that provides an improved service life. The cartridge has a very good service life to weight ratio. | 11-24-2011 |
20110284006 | FILTER CARTRIDGE HAVING CENTRAL PLENUM AND HOUSING SIDEWALL - A filter cartridge | 11-24-2011 |
20110311400 | REFILLABLE FILTER SYSTEM - A radial flow filtration system includes a housing and one or more generally cylindrical filter cartridges including a filter cartridge shell and a filter section. The filter cartridge is removable with respect to the housing and the filter section in removable with respect to the filter cartridge shell. | 12-22-2011 |
20130139818 | SPLIT FLOW FILTERING DEVICE - A filtering device 10, 10′ that has a fluid inlet 12, a plenum 14, first and second filter layers 16 and 18, first and second fluid outlets 20 and 22, and a housing 24. The plenum 14 receives air that passes through the fluid inlet 12, and the first and second filter layers 16 and 18 are located on opposing sides of the plenum 14. The first and second fluid outlets 20 and 22 are located downstream to the first and second filter layers 16 and 18, respectively, on a side of each filter layer 16, 18 opposite the plenum 14. The housing 12 supports the first and second filter layers 16, 18 on opposing sides of the plenum 14. Very good distribution of fluid through the device 10 may be achieved because the plenum 14 and the filtering layers 16, 18 maintain their original relative positioning throughout use. Complex shapes can be produced, which enable the filtering device to accommodate devices of various configurations. Thicker filter media beds may be used on each side of the plenum to improve filtration performance and service life. | 06-06-2013 |
20130152919 | AIR FILTRATION DEVICE HAVING TUNED AIR DISTRIBUTION SYSTEM - A filtering device | 06-20-2013 |
20130152920 | AIR FILTRATION DEVICE HAVING SUBSECTIONS LACKING FLUID COMMUNICATION - A filtering device | 06-20-2013 |
20140168546 | Curved Automatic-Darkening Filter - An automatic-darkening filter | 06-19-2014 |
20150047632 | Air Filtration Device Having Tuned Air Distribution System - A filtering device | 02-19-2015 |
20150047633 | Air Filtration Device Having Subsections Lacking Fluid Communication - A filtering device | 02-19-2015 |