초록 ▼

An improvement to a reusable filtering assembly used in circulating air systems for residential or commercial heating and air conditioning systems. A series of layers consisting of filtering materials disposed between two framing units are comprised of the following: expanded metal lath, a layer of

An improvement to a reusable filtering assembly used in circulating air systems for residential or commercial heating and air conditioning systems. A series of layers consisting of filtering materials disposed between two framing units are comprised of the following: expanded metal lath, a layer of small fiber material, a layer of large fiber material, a layer of small crimp wire cloth, a layer of small fiber material, and a last layer of expanded metal lath. The present invention further comprises a stage loaded series of layers wherein the direction of air flow is from the first layer to the sixth layer comprising: Expanded Metal Lath, Small Fiber, Large Fiber, Small Crimp Wire Cloth, Small Fiber, and Expanded Metal Lath.

대표청구항 ▼

What is claimed is: 1. A reusable air filter assembly for circulating air systems, comprising:a. a frame, comprising two frame units capable of sandwiching a number of layers of material, and each comprising a feature that overlaps the other, wherein a single screw can be disposed through the overla

What is claimed is: 1. A reusable air filter assembly for circulating air systems, comprising:a. a frame, comprising two frame units capable of sandwiching a number of layers of material, and each comprising a feature that overlaps the other, wherein a single screw can be disposed through the overlap to secure the frames relative to each other;b. a series of material disposed in the frame, containing a first layer of expanded metal lath, a second layer of small fiber material, a third layer of large fiber material, a fourth layer of small crimp wire cloth, a fifth layer of small fiber material, and a sixth layer of expanded metal lath, arranged in this order, wherein the direction of air flow is from the first layer to the sixth layer;c. screws anchoring the frame units in position; andd. support brackets for holding the frame units in position at corners of the frame units, wherein the screws extend through the support brackets and overlapping portions of the frame units.