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US 6,643,850 B2Granted
Odor removal system
AssigneeHP Intellectual Corp.
InventorsJames E. Chasen, David O'Connor, Don Sheelen, Paul J. Donoski, Eric J. Price, David Connery
Life of this patent
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Abstract
An air filter assembly including a frame, a filter and an odor eliminator liquid. The frame forms an air flow channel. The filter is connected to the frame in the air flow channel. The filter includes at least one filter element. The odor eliminator liquid is located on a first one of the filter elements.
Claims32
An air filter assembly comprising:
- a frame forming an air flow channel;
- a filter connected to the frame in the air flow channel, the filter comprising at least one filter element;
- an odor eliminator liquid reservoir;
- and
- means for drawing odor eliminating liquid from said reservoir and delivering said liquid to said first filter to wet said first filter.
2 more elements
An air filter assembly comprising:
- a frame forming at least a portion of an air flow channel;
- at least one filter element connected to the frame in the air flow channel;
- and
- a system for neutralizing odor in air passing through the filter element, the system comprising an odor neutralizing solution reservoir and a-device for delivering the odor neutralizing solution from said reservoir onto the filter element, wherein the odor neutralizing solution comprises a neutralizer suspended in an aqueous solution, the neutralizer being selected from a group consisting of cyclodextrin, chlorites or antibacterial quaternary ammonium compound.
1 more element
A method of removing odor from air comprising steps of:
- passing the air through a first air filter element;
- and
- spraying an odor eliminator liquid onto the first air filter element.
Dependencies are inferred from the claim text.