초록 ▼

An improvement in a water filter cartridge of the type having a substantially frustoconical vessel member defining a vertical axis and containing a granular purifying agent which is insoluble in water. The vessel member has a screen-like end wall portion at the lower end thereof. A hollow substantia

An improvement in a water filter cartridge of the type having a substantially frustoconical vessel member defining a vertical axis and containing a granular purifying agent which is insoluble in water. The vessel member has a screen-like end wall portion at the lower end thereof. A hollow substantially frustoconical cover member is attached to the vessel member and coaxial with the vertical axis thereof. The cover member defines an annular rim portion and a first slanted portion extending upwardly and inwardly from the rim portion, and a substantially flat-topped second portion, the first portion having a multiplicity of vertically oriented water entry flow slots arrayed therearound. The vessel member and the cover member together define a container for receiving and retaining said granular purifying agent therein. A first layer of filtration material is disposed within said vessel member and layered upon said granular purifying agent. The water filter cartridge is for use in a water filtration device. The improvement comprises the provision of a water flow directing ring positioned above the granular purifying agent and above the first layer of filtration material. The water flow directing ring has a substantially peripherally disposed main body portion shaped and dimensioned to contact the container at its interior surface at a level above the granular purifying agent and below the water entry flow slots. At least one drip arm extends radially inwardly from the main body portion in overlying relation to the granular purifying agent and the first layer of filtration material.

대표청구항 ▼

[ We claim:] [1.] In a water filter cartridge of the type having a substantially frustoconical vessel member defining a vertical axis and containing a granular purifying agent which is insoluble in water, said vessel member having a screen-like end wall portion at a lower end thereof, a hollow subst

[ We claim:] [1.] In a water filter cartridge of the type having a substantially frustoconical vessel member defining a vertical axis and containing a granular purifying agent which is insoluble in water, said vessel member having a screen-like end wall portion at a lower end thereof, a hollow substantially frustoconical cover member attached to said vessel member and coaxial with the vertical axis thereof, said cover member defining an annular rim portion and a first slanted portion extending upwardly and inwardly from said rim portion, and a substantially flat-topped second portion, said first portion having a multiplicity of vertically oriented water entry flow slots arrayed therearound, said vessel member and said cover member together defining a container for receiving and retaining said granular purifying agent therein, said water filter cartridge for use in a water filtration device, wherein the improvement comprises:a first layer of filtration material disposed within said vessel member and layered upon said granular purifying agent; anda water flow directing ring positioned within said container above said granular purifying agent and above said first layer of filtration material, said water flow directing ring having a substantially peripherally disposed main body portion shaped and dimensioned to contact said container at its interior surface above said granular purifying agent and above said first layer of filtration material and below said water entry flow slots, and at least one drip am extending radially inwardly from said main body portion in overlying relation to said granular purifying agent and said first layer of filtration material.