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.
Claims28
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, which together with opposing end walls defines a chamber between the inner and outer mesh,
- 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;
- and
- 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, preferably a mesh, a screen, a fabric, a weave, a slatted, a foam, or a perforated portion, and is configured such that when air flows through the outer mesh it also passes through the air permeable portion.
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A removable media cartridge for use with an air filtration unit, the filtration unit having:
- a mounting flange for attachment of the filtration unit to an air vent, and
- a collar for receiving the media cartridge;
- 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, preferably a mesh, a screen, a fabric, a weave, a slatted, a foam, or a perforated 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, which together with opposing end walls defines a chamber between the inner and outer mesh;
- filtration media disposed in the chamber;
- and
- a cap for closing off one end of the central air passage in the media cartridge.
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Dependencies are inferred from the claim text.