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US 4,828,586 AGranted
Cartridge type electronic air filter
OwnerConstantinos J. Joannouinventor
Life of this patent
Estimating the term…
Abstract
This invention relates to an electronic air filter of the charged media type in which the filter media and screens form a disposable cartridge. The high voltage power supply, which is made long and slender, attaches to the side of the cartridge and it is powered by a low voltage power supply.
Claims7
A combination electronic cartridge air filter and power supply unit for removable insertion into an air handling system comprising:
- at least a first disposable filter cartridge which includes:
- (a) a frame;
- (b) first and second spaced outside conducting screens attached to said frame;
- (c) an inside conducting screen disposed within said frame between said outside conducting screens;
- and,
- (d) nonconducting dielectric fibrous material disposed between said outside and inside conducting screens, and surrounding said inside conducting screen;
- and,
- a removable power supply unit including:
- (a) a high voltage power supply;
- (b) a box containing said power supply;
- (c) means on said box to removably mechanically attach said box in a supported manner directly and solely to said filter cartridge frame;
- and,
- (d) a high voltage probe extending from said box, and passing through an opening in said frame to electrically contact a conductor means which is electrically connected to said inside conducting screen.
10 more elements
A combination electronic cartridge air filter and power supply unit for removable insertion into an air handling system comprising:
- at least a first disposable filter cartridge which includes:
- (a) a frame;
- (b) first and second spaced perforated retainer sides attached to said frame;
- (c) an inside conducting screen disposed within said frame between said perforated retainer sides;
- and,
- (d) nonconducting dielectric fibrous material disposed between said perforated retainer sides and said inside conducting screen, and surrounding said inside conducting screen;
- and,
- a removable power supply unit including:
- (a) a high voltage power supply;
- (b) a box containing said power supply;
- (c) a frame attached to said box including first and second spaced parallel outside conducting screens;
- (d) means on said box to removably mechanically attach said box in a supported manner directly and solely to said filter cartridge frame;
- and,
- (e) a high voltage probe extending from said box, and passing through an opening in said frame to electrically contact a conductor means which is electrically connected to said inside conducting screen.
11 more elements
Dependencies are inferred from the claim text.