Portable humidifier with keyed replaceable cartridge element
AssigneeHoneywell Inc.
InventorWalter Birdsell
Life of this patent
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Abstract
A portable humidifier including a housing defining an air inlet, an air outlet, and an air flow path therebetween; a retainer disposed in the housing and defining key structure; and an air permeable, liquid absorbent cartridge element replaceably retained by the retainer and defining keyhole structure shaped and arranged to receive the key structure and at least one portion of the cartridge element being disposed in the air flow path. Also included is a blower disposed in the housing and activatable to produce air flow through the air flow path and cartridge element and a liquid supply for supplying liquid to the portion of the cartridge element.
Claims12
A portable humidifier comprising:
- housing means defining an air inlet, an air outlet, and an air flow path between said air inlet and said air outlet;
- retainer means disposed in said housing means and defining key means defining a plurality of projections spaced apart in an asymmetrical array;
- an air permeable, liquid absorbent cartridge element replaceably retained by said retainer means and defining keyhole means comprising a plurality of recesses, each disposed to receive one of said projections;
- at least one portion of said cartridge element being disposed in said air flow path;
- a blower disposed in said housing means and activatable to produce air flow through said air flow path and said cartridge element;
- and
- liquid supply means for supplying liquid to said portion of said cartridge element.
A replaceable air permeable, liquid absorbent cartridge element for use in a portable humidifier having a key means defining retainer means for receiving said cartridge element said cartridge element defining keyhole means defining a plurality of asymmetrically spaced apart recesses for receiving said key means.
Dependencies are inferred from the claim text.