초록 ▼

A filter assembly for a flexible, portable bottle having a sealing cap including a filter attached to the interior of the cap to filter out substantially all INORGANICS, ORGANICS, RADIOLOGICAL CHEMICALS AND MICROBIOLIGY. The filter assembly also may include a second filter or Iodinator sealed in the

A filter assembly for a flexible, portable bottle having a sealing cap including a filter attached to the interior of the cap to filter out substantially all INORGANICS, ORGANICS, RADIOLOGICAL CHEMICALS AND MICROBIOLIGY. The filter assembly also may include a second filter or Iodinator sealed in the flexible bottle to further remove micro-organisms from water passing therethrough. The filter assembly is designed so that the flexible bottle must be pressurized, as by being hand pressed, after it is filled with water to force flow of water through the either or both of the filters. The filter in the cap includes a check valve to allow the bottle to be repressurized after water has been dispensed from the bottle.

대표청구항 ▼

[ What is claim is:] [1.] A portable bottle having a flexible hollow body and a cap with valve means, the improvement comprising:at least a first filter assembly;said first filter assembly being secured to an interior surface of said cap so as to be in said flexible hollow body when said cap is secu

[ What is claim is:] [1.] A portable bottle having a flexible hollow body and a cap with valve means, the improvement comprising:at least a first filter assembly;said first filter assembly being secured to an interior surface of said cap so as to be in said flexible hollow body when said cap is secured to said flexible hollow body;said first filter assembly including a cylindrical body having an open central chamber having two open ends, a first of said two open ends being secured to said interior surface of said cap so that said open central chamber is fluidly connected to an opening passing through said cap, a second of said two ends being closed by check valve means held therein; andsaid cylindrical body having a porosity of from 2 to 8 microns and being fabricated from a porous plastic material having a powdered activated carbon therein so as to filter water passing therethrough. [10.] A method of filtering water comprising the steps of:selecting a flexible, portable bottle having a removable cap with a valve means thereon, said cap being attached to one end of a first filter assembly, a second end of said first filter assembly having a check valve attached thereto;securing a second filter assembly having iodine therein in said flexible, portable bottle;passing water through said second filter assembly into said flexible, portable bottle;securing said cap to said flexible, portable bottle in an air tight manner;opening said valve means on said cap;squeezing said flexible bottle to force said water therein, back through said second filter assembly, then through said first filter assembly, and through said valve means in said cap. The method of filtering water of claim 10 wherein said first filter assembly comprises sorbents including powdered activated carbon. The method of filtering water of claim 11, further including the step of stopping the squeezing of said bottle with said valve means open to allow air to be sucked back through said valve means and said check valve. A portable bottle having a flexible hollow body and a cap with valve means, the improvement comprising:a first filter element;said first filter element comprising a cup shaped body and being secured to an interior surface of said flexible hollow body;said cup shaped body including iodine impregnated therein;said cup shaped body eluting iodine to any water poured into said cup shaped body as it passes through said cup shaped body into a storage area in said flexible body; anda second filter element having two ends, one end being connected to an interior surface of said cap, the other end having a check valve contained therein, so that when said flexible body is squeezed, water contained therein passes through said first filter element and said second filter element, with said check valve allowing air to enter said flexible body through said cap and said second filter element when the squeezing ceases. The portable bottle of claim 13, further including a filter assembly secured in said cap, said filter assembly having an open central chamber with two open ends; a first of said two open ends being secured to in an interior of said cap so that said open central chamber is fluidly connected to an opening passing through said cap; a second of said two open ends being closed by check valve means held therein. The portable bottle of claim 14 wherein said check valve means has a ball valve cooperating with a valve seat held therein to control the flow of air through said open central chamber; said ball valve being normally moved away from said valve seat unless pressure is applied to said flexible hollow body; and said check valve having two ends with one of the two check valve ends being enlarged and carrying a further filter element therein. The portable bottle of claim 15 wherein said cylindrical body has a porosity of from 2 to 8 microns and is fabricated from a porous plastic material having a powdered activated carbon and a sorbent media therein. The portable bottle of claim 16 wherein with said valve means opened in said cap and said flexible hollow body pressurized, said water stored in said storage area is first pressed back through said cup shaped body and then pressed through said cylindrical body into said open central chamber for passage through said valve means in said cap. The portable bottle of claim 17 wherein when said water is pressed back through said cup shaped body said water will flush off an inner surface of said cup shaped body.