1. Field of The Invention
This invention relates to air conditioner filters.
More specifically this invention relates to electrostatic air conditioner filters.
2. Prior Art
Prior art shows several filters incorporating layers and electrostatic filtering.
This technology dates back for some time. Most of the patents related to electrostatic filtering are improvements on the technology.
U.S. Pat. No. 4,904,288 to d'Augereau shows electrostatic filtering utilizing a waved steel mesh similar to aluminum screening in order to create turbulence and pockets for dust to collect. d'Augereau and patents cited therein show multiple layer electrostatic and regular air filters.
The egg crate design of the polypropylene layers described in this specification are also well known in the art in U.S. Pat. No. 2,724,457.
One problem with the prior art is that the utilization of electrostaticly charged elements involves the excessive dependence on layers impeding the air flow. This reduces the effectiveness of the air conditioner, increases energy use and results in difficulty in cleaning the unit.
Another problem in the prior art is the use of metallic elements grounding and reducing the effectiveness of the electrostatically charged element.
It is therefore one object of the invention to provide for an electrostatic filter made with non-metallic parts so that the electrostatic element retains a greater charge and is not grounded.
It is another object of the invention to provide an electrostatic air filter allowing for greater air flow with less resistance and therefore greater efficiency for the air conditioning unit and less strain on the air conditioning motor.
It is another object of the invention to provide a layered air filter which is both efficient and easy to clean for reuse.
These and other objects of the invention may be more readily observed from the accompanying drawings and detailed description given below.