Back to results
US 5,858,045 AGranted
Multiple layer air filter media
AssigneeAir Kontrol, Inc.
InventorsMichael J. Stemmer, Edward C. Sofsky
Life of this patent
Estimating the term…
Abstract
A filter media for an air filter includes at least two layers of filter material with the materials being different. The layers are joined together by a stiffening grid fabricated from a metal or plastic. Glue such as hot-melt glue is disposed on both sides of the grid to attach the sides of the grid to the respective layers. Depending upon the application, the filter media may be pleated.
Claims25
A filter media comprising:
- a first layer of a first type of filter material;
- a second layer of a second type of filter material different from the first type of material;
- and
- a stiffening grid including first and second sides, the first side of the stiffening grid being attached to the first layer and the second side being attached to the second layer.
1 more element
A filter media comprising:
- a first layer of filter material comprising activated carbon impregnated media;
- a second layer of filter material comprising synthetic microfiber media joined to the first layer at a plurality of locations distributed between the layers;
- a stiffening grid attached to the first layer, wherein the first layer, the second layer and the stiffening grid are folded to provide a plurality of pleats in the filter media;
- and
- a third layer of filter material joined to the second layer at a plurality of locations distributed between the layers, the third layer being disposed on a side of the second layer opposite the first layer, wherein the material of the third layer is synthetic media impregnated with potassium permanganate.
2 more elements
A forced air ventilation system comprising:
- an air filter including a frame and a filter media supported by the frame, the filter media including first and second layers of filter material and a stiffening grid having first and second sides wherein the first layer is fabricated from a filter material different from the filter material of the second layer the first side is attached to the first layer and the second side is attached to the second layer;
- an air duct having the air filter supported therein;
- and
- a fan in fluid communication with the air duct to force air through the filter.
1 more element
Dependencies are inferred from the claim text.