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US 11,766,633 B2Granted
Air filtration unit
AssigneeBlade Filters Inc.
InventorJoseph Fida
Life of this patent
Estimating the term…
Abstract
An air filtration unit is provided with a replaceable media cartridge to reduce the time, material, and labour costs required to maintain the filtration system. A housing portion includes a mounting flange, a supporting frame, and a collar for receiving a replaceable media cartridge. The replaceable media cartridge slides into the frame. At least one cap ensures that air flows through the cartridge and may provide a handle for easy removal and replacement of the cartridge.
Claims23
An air filtration unit comprising:
- a removable media cartridge having:
- an inner mesh defining a central air passage extending along a longitudinal axis of the filtration unit,
- an outer mesh surrounding the inner mesh,
- a pair of opposing end walls extending between the inner mesh and the outer mesh at opposing ends of the outer mesh, which together define a chamber between the inner and outer mesh, both of the pair of opposing end walls having attachment points,
- filtration media disposed in the chamber, and
- at least one cap for closing off one end of the central air passage in the media cartridge, the at least one cap comprising apertures positioned to correspond with the attachment points on one of the pair of opposing end walls for releasable securement with the one of the pair of opposing end walls;
- and
- a housing coaxial with said media cartridge, said housing having:
- a mounting flange for attachment of the filtration unit to an air vent, and
- a collar for receiving the media cartridge;
- wherein the housing comprises a frame for supporting the media cartridge along the longitudinal axis, and comprises an air permeable portion, and is configured such that when air flows through the outer mesh it also passes through the air permeable portion.
8 more elements
A removable media cartridge for use with an air filtration unit, the filtration unit having:
- a housing having:
- a mounting flange for attachment of the filtration unit to an air vent, and
- a collar for receiving the media cartridge;
- wherein the housing comprises a frame for supporting the media cartridge along the longitudinal axis, and comprises an air permeable portion, and is configured such that when air flows through the outer mesh it also passes through the air permeable portion;
- the media cartridge comprising:
- an inner mesh defining a central air passage extending along a longitudinal axis of the filtration unit;
- an outer mesh surrounding the inner mesh;
- a pair of opposing end walls extending between the inner mesh and the outer mesh at opposing ends of the outer mesh, which together define a chamber between the inner and outer mesh, both of the pair of opposing end walls having attachment points;
- filtration media disposed in the chamber;
- and
- a cap for closing off one end of the central air passage in the media cartridge, the cap comprising apertures positioned to correspond with the attachment points on one of the pair of opposing end walls for releasable securement with the one of the pair of opposing end walls.
8 more elements
Dependencies are inferred from the claim text.