Portable water filter

Claim 2

A portable water filter comprising: a first upright cylinder closed at one end and open at the other end; a second upright cylinder telescopingly receivable within said first cylinder through said other end; means, including a transverse wall spaced upwardly from the lower end of said second cylinder, disposed in and forming a part of the lower end portion of said second cylinder for defining a cavity receptive of a cartridge capable of filtering water flow therethrough; and a cartridge receivable in said cavity and confining a material for filtering water pumped to flow through said cavity and said material as said second cylinder is pressed within said first cylinder, insertion of said second cylinder into said first cylinder creating pressure on liquid contained in said first cylinder.

Claim 3

A portable water filter comprising: a first container for holding a quantity of liquid to be treated; a cartridge for filtering liquid and mounted with respect to said first container for treating liquid pumped to flow from said first container through filtering material within said cartridge, said cartridge including means defining an inlet opening admitting fluid to said filtering material; a second container coupled to said cartridge and arranged to receive said liquid pumped through said cartridge from said first container; means for removably coupling said cartridge to said second container and having means defining an aperture communicating with liquid in said first container and sealingly matable with said inlet opening; said inlet opening including a well and said aperture means including a boss projectable within said well; and means for manually pumping liquid from said first container through said cartridge to said second container.

Claim 4

A portable water filter comprising: a first container for holding a quantity of liquid to be treated; a cartridge for filtering liquid and mounted with respect to said first container for treating liquid pumped to flow from said first container through filtering material within said cartridge, said cartridge including means defining an inlet opening admitting fluid to said filtering material; a second container coupled to said cartridge and arranged to receive said liquid pumped through said cartridge from said first container; means for removably coupling said cartridge to said second container and having means defining an aperture communicating with liquid in said first container and sealingly matable with said inlet opening; said inlet opening including a well and said aperture means including a boss projectable within said well; and means for manually pumping liquid from said first container through said cartridge to said second container.

Claim 5

A portable water filter comprising: a first container for holding a quantity of liquid to be treated; a cartridge for filtering liquid and mounted with respect to said first container for treating liquid pumped to flow from said first container through filtering material within said cartridge, said cartridge including a conduit extending through said filtering material; a second container coupled to said cartridge and arranged to receive said liquid pumped through said cartridge from said first container; means for removably coupling said cartridge to said second container and having means defining a plug engageable within one end portion of said conduit; and means for manually pumping said liquid from said first container through said cartridge to said second container.

Claim 6

A portable water filter comprising: a first container for holding a quantity of liquid to be treated; a cartridge for filtering liquid and mounted with respect to said first container for treating liquid pumped to flow from said first container through filtering material within said cartridge, said cartridge including a conduit extending through said filtering material; a second container coupled to said cartridge and arranged to receive said liquid pumped through said cartridge from said first container; means for removably coupling said cartridge to said second container and having means defining a plug engageable within one end portion of said conduit; and means for manually pumping said liquid from said first container through said cartridge to said second container.

Claim 7

A portable water filter comprising: a first container for holding a quantity of liquid to be treated; a cartridge for filtering liquid and mounted with respect to said first container for treating liquid pumped to flow from said first container through filtering material within said cartridge; a second container coupled to said cartridge and arranged to receive said liquid pumped through said cartridge from said first container, said second container including means defining a flow passage for liquid leaving said cartridge and further including means for diffusing water flowing through said passage; and means for manually pumping said liquid from said first container through said cartridge to said second container.

Claim 8

A portable water filter comprising: a first container for holding a quantity of liquid to be treated; a cartridge for filtering liquid and mounted with respect to said first container for treating liquid pumped to flow from said first container through filtering material within said cartridge; a second container coupled to said cartridge and arranged to receive said liquid pumped through said cartridge from said first container, said second container including means defining a flow passage for liquid leaving said cartridge and further including means for diffusing water flowing through said passage; and means for manually pumping said liquid from said first container through said cartridge to said second container.

Claim 9

A portable water filter as defined in claim 4 in which said second container includes a transverse wall intermediate its length and in which said flow passage is located.

Claim 10

A portable water filter comprising: a first container for holding a quantity of liquid to be treated; a cartridge for filtering liquid and mounted with respect to said first container for treating liquid pumped to flow from said first container through filtering material within said cartridge; a second container coupled to said cartridge and arranged to receive said liquid pumped through said cartridge from said first container; means for manually pumping said liquid from said first container through said cartridge to said second container; and a cap securable upon an otherwise open end of said second container, said cap including means defining a well therewithin for accommodating water-tight storage of a water treatment material.

Claim 11

A portable water filter comprising: a first container for holding a quantity of liquid to be treated; a cartridge for filtering liquid and mounted with respect to said first container for treating liquid pumped to flow from said first container through filtering material within said cartridge; a second container coupled to said cartridge and arranged to receive said liquid pumped through said cartridge from said first container; means for manually pumping said liquid from said first container through said cartridge to said second container; and a cap securable upon an otherwise open end of said second container, said cap including means defining a well therewithin for accommodating water-tight storage of a water treatment material.

Claim 12

A portable water filter as defined in claim 6 which further includes another cap closable to cover said well.

Claim 13

A portable water filter comprising: a first container for holding a quantity of liquid to be treated, said first container being closed at one end and open at the other end; a cartridge confining a material for filtering liquid and mounted with respect to said first container for treating liquid pumped to flow from said first container through said material within said cartridge; a second container, open at both its upper and lower ends, coupled to said cartridge and arranged to receive said liquid pumped through said material from said first container, said second container being telescopingly receivable through said other end of said first container; a peripheral seal disposed between the inner wall of said first container and the assembly of said second container and said cartridge; means for manually pumping said liquid from said first container through said material to said second container, insertion of said second container within said first container creating pressure on liquid contained in said first container to urge flow of said liquid through said material and then to said second container; the lower end portion of said second container including means, having a transverse wall spaced upwardly from the lower end of said second container, defining a cavity within which said cartridge is seated; and said transverse wall including means defining an opening communicating between said cavity and the upper end portion of said second container.

Claim 14

A portable water filter comprising: a first container for holding a quantity of liquid to be treated, said first container being closed at one end and open at the other end; a cartridge confining a material for filtering liquid and mounted with respect to said first container for treating liquid pumped to flow from said first container through said material within said cartridge; a second container, open at both its upper and lower ends, coupled to said cartridge and arranged to receive said liquid pumped through said material from said first container, said second container being telescopingly receivable through said other end of said first container; a peripheral seal disposed between the inner wall of said first container and the assembly of said second container and said cartridge; means for manually pumping said liquid from said first container through said material to said second container, insertion of said second container within said first container creating pressure on liquid contained in said first container to urge flow of said liquid through said material and then to said second container; the lower end portion of said second container including means, having a transverse wall spaced upwardly from the lower end of said second container, defining a cavity within which said cartridge is seated; and said transverse wall including means defining an opening communicating between said cavity and the upper end portion of said second container.

Claim 15

A portable water filter comprising: a first container for holding a quantity of liquid to be treated, said first container being closed at one end and open at the other end; a cartridge confining a material for filtering liquid and mounted with respect to said first container for treating liquid pumped to flow from said first container through said material within said cartridge; a second container, open at both its upper and lower ends, coupled to said cartridge and arranged to receive said liquid pumped through said material from said first container, said second container being telescopingly receivable through said other end of said first container; a peripheral seal disposed between the inner wall of said first container and the assembly of said second container and said cartridge, said seal being coupled to the lower end portion of said second container; means for manually pumping said liquid from said first container through said material to said second container, insertion of said second container within said first container creating pressure on liquid contained in said first container to urge flow of said liquid through said material and then to said second container; said second container including a transverse wall defining upper and lower portions of said second container and having means in said wall defining a flow opening; said cartridge including means defining an outlet opening and a sealing element matable between said flow opening and said outlet opening; and means for coupling said seal to said second container while also mating said sealing element between said openings.

Claim 16

A portable water filter comprising: a first container for holding a quantity of liquid to be treated, said first container being closed at one end and open at the other end; a cartridge confining a material for filtering liquid and mounted with respect to said first container for treating liquid pumped to flow from said first container through said material within said cartridge; a second container, open at both its upper and lower ends, coupled to said cartridge and arranged to receive said liquid pumped through said material from said first container, said second container being telescopingly receivable through said other end of said first container; a peripheral seal disposed between the inner wall of said first container and the assembly of said second container and said cartridge, said seal being coupled to the lower end portion of said second container; means for manually pumping said liquid from said first container through said material to said second container, insertion of said second container within said first container creating pressure on liquid contained in said first container to urge flow of said liquid through said material and then to said second container; said second container including a transverse wall defining upper and lower portions of said second container and having means in said wall defining a flow opening; said cartridge including means defining an outlet opening and a sealing element matable between said flow opening and said outlet opening; and means for coupling said seal to said second container while also mating said sealing element between said openings.

Claim 17

A portable water disinfecting and filtering apparatus comprising: a first upright tubular container, closed at its lower end and open at its upper end, for holding a quantity of water to be treated; a second upright tubular container, open at both its upper and lower ends, dimensioned to be telescopingly received within said first container through said upper end thereof; a cartridge having a substantially closed housing substantially confining water filtering material and dimensioned to be telescopingly received within said lower end of said second container, said cartridge including respective openings permitting a pressure-induced flow of water through the cartridge and said material confined therein; means for mounting said cartridge with respect to said lower end of said second container; and means for sealingly closing said upper end of said second container as well as for enclosing a medium for disinfecting water placed within said first container.

Claim 18

A portable water disinfecting and filtering apparatus comprising: a first upright tubular container, closed at its lower end and open at its upper end, for holding a quantity of water to be treated; a second upright tubular container, open at both its upper and lower ends, dimensioned to be telescopingly received within said first container through said upper end thereof; a cartridge having a substantially closed housing substantially confining water filtering material and dimensioned to be telescopingly received within said lower end of said second container, said cartridge including respective openings permitting a pressure-induced flow of water through the cartridge and said material confined therein; means for mounting said cartridge with respect to said lower end of said second container; and means for sealingly closing said upper end of said second container as well as for enclosing a medium for disinfecting water placed within said first container.

Claim 19

A portable water filter apparatus as defined in claim 10 in which said first and second containers are of respective lengths such that the upper end of said second container projects above the upper end of said first container when said containers are telescoped fully together.

Claim 20

Apparatus as defined in claim 11 in which a peripheral lip projects laterally outward from the upper end of said second container.

Claim 21

Apparatus as defined in claim 12 in which said closing means includes a peripheral skirt sealingly engageable over said lip.

Claim 22

Apparatus as defined in claim 13 in which said closing means further includes means defining a well downwardly projecting within the interior of said second container for receipt of said medium and a cap detachably secured over said well.

Claim 23

A portable water filter apparatus comprising: a first upright tubular container closed at its lower end and open at its upper end, for holding a quantity of water to be treated; a second upright tubular container, open at both its upper and lower ends, dimensioned to be telescopingly received within said first container through said upper end thereof; a cartridge having a substantially closed housing substantially confining water filtering material and dimensioned to be telescopingly received within said lower end of said second container, said cartridge including respective openings permitting a pressure-induced flow of water through the cartridge and said material confined therein; means for mounting said cartridge with respect to said lower end of said second container; a peripheral seal disposed between the inner wall of said first container and the outer wall of said second container; and means for sealingly closing said upper end of said second container.

Claim 24

A portable water filter apparatus comprising: a first upright tubular container closed at its lower end and open at its upper end, for holding a quantity of water to be treated; a second upright tubular container, open at both its upper and lower ends, dimensioned to be telescopingly received within said first container through said upper end thereof; a cartridge having a substantially closed housing substantially confining water filtering material and dimensioned to be telescopingly received within said lower end of said second container, said cartridge including respective openings permitting a pressure-induced flow of water through the cartridge and said material confined therein; means for mounting said cartridge with respect to said lower end of said second container; a peripheral seal disposed between the inner wall of said first container and the outer wall of said second container; and means for sealingly closing said upper end of said second container.

Claim 25

Apparatus as defined in claim 15 in which said first and second containers are of respective lengths such that the upper end of said second container projects above the upper end of said first container when said containers are telescoped fully together.

Claim 26

Apparatus as defined in claim 16 in which a peripheral lip projects laterally outward from the upper end of said second container.

Claim 27

Apparatus as defined in claim 17 in which said closing means includes a peripheral skirt sealingly engageable over said lip.

Claim 28

A portable water filter apparatus comprising: a first upright tubular container, closed at its lower end and open at its upper end, for holding a quantity of water to be treated; a second upright tubular container, open at both its upper and lower ends, dimensioned to be telescopingly received within said first container through said upper end thereof; a cartridge having a substantially closed housing substantially confining water filter material and dimensioned to be telescopingly received within said lower end of said second container, said cartridge including respective openings permitting a pressure-induced flow of water through the cartridge and said material confined therein; means for mounting said cartridge with respect to said lower end of said second container; a peripheral seal disposed between the inner wall of said first container and the outer wall of said second container; and said first and second containers being of respective lengths such that the upper end of said second container projects above the upper end of said first container when said containers are telescoped fully together.

Claim 29

A portable water filter apparatus comprising: a first upright tubular container, closed at its lower end and open at its upper end, for holding a quantity of water to be treated; a second upright tubular container, open at both its upper and lower ends, dimensioned to be telescopingly received within said first container through said upper end thereof; a cartridge having a substantially closed housing substantially confining water filter material and dimensioned to be telescopingly received within said lower end of said second container, said cartridge including respective openings permitting a pressure-induced flow of water through the cartridge and said material confined therein; means for mounting said cartridge with respect to said lower end of said second container; a peripheral seal disposed between the inner wall of said first container and the outer wall of said second container; and said first and second containers being of respective lengths such that the upper end of said second container projects above the upper end of said first container when said containers are telescoped fully together.

Claim 30

Apparatus as defined in claim 19 in which a peripheral lip projects laterally outward from the upper end of said second container.

Claim 31

A portable water filter apparatus comprising: a first upright tubular container, closed at its lower end and open at its upper end, for holding a quantity of water to be treated; a second upright tubular container, open at both its upper and lower ends, dimensioned to be telescopingly received within said first container through said upper end thereof; a cartridge having a substantially closed housing substantially confining water filtering material and dimensioned to be telescopingly received within said lower end of said second container, said cartridge including respective openings permitting a pressure-induced flow of water through the cartridge and said material confined therein; means for mounting said cartridge with respect to said lower end of said second container; said first and second containers being of respective lengths such that the upper end of said second container projects above the upper end of said first container when said containers are telescoped fully together.

Claim 32

A portable water filter apparatus comprising: a first upright tubular container, closed at its lower end and open at its upper end, for holding a quantity of water to be treated; a second upright tubular container, open at both its upper and lower ends, dimensioned to be telescopingly received within said first container through said upper end thereof; a cartridge having a substantially closed housing substantially confining water filtering material and dimensioned to be telescopingly received within said lower end of said second container, said cartridge including respective openings permitting a pressure-induced flow of water through the cartridge and said material confined therein; means for mounting said cartridge with respect to said lower end of said second container; said first and second containers being of respective lengths such that the upper end of said second container projects above the upper end of said first container when said containers are telescoped fully together.

Claim 33

Apparatus as defined in claim 21 in which a peripheral lip projects laterally outward from the upper end of said second container.

Claim 34

A portable water filter apparatus comprising: a first upright tubular container, closed at its lower end and open at its upper end, for holding a quantity of water to be treated; a second upright tubular container, open at both its upper and lower ends, dimensioned to be telescopingly received within said first container through said upper end thereof; a cartridge having a substantially closed housing substantially confining water filtering material and dimensioned to be telescopingly received within said lower end of said second container, said cartridge including respective openings permitting a pressure-induced flow of water through the cartridge and said material confined therein; means for mounting said cartridge with respect to said lower end of said second container; and means for removably securing said cartridge within the lower portion of said second container.

Claim 35

A portable water filter apparatus comprising: a first upright tubular container, closed at its lower end and open at its upper end, for holding a quantity of water to be treated; a second upright tubular container, open at both its upper and lower ends, dimensioned to be telescopingly received within said first container through said upper end thereof; a cartridge having a substantially closed housing substantially confining water filtering material and dimensioned to be telescopingly received within said lower end of said second container, said cartridge including respective openings permitting a pressure-induced flow of water through the cartridge and said material confined therein; means for mounting said cartridge with respect to said lower end of said second container; and means for removably securing said cartridge within the lower portion of said second container.

Claim 36

Apparatus as defined in claim 23 in which said securing means also seats a peripheral seal disposed between the inner wall of said first container and the outer wall of said second container.

Claim 37

A portable water filter apparatus comprising: a first upright tubular container, closed at its lower end and open at its upper end, for holding a quantity of water to be treated; a second upright tubular container, open at both its upper and lower ends, dimensioned to be telescopingly received within said first container through said upper end thereof; a cartridge having a substantially closed housing substantially confining water filtering material and dimensioned to be telescopingly received within said lower end of said second container, said cartridge including respective openings permitting a pressure-induced flow of water through the cartridge and said material confined therein; means for mounting said cartridge with respect to said lower end of said second container; a peripheral seal disposed between the inner wall of said first container and the outer wall of said second container; and said peripheral seal including means sealingly forced into closing relationship between the inner wall of said first container and the outer wall of said second container upon telescoping of said second container within said first container to urge said cartridge against said quantity of water.

Claim 38

A portable water filter apparatus comprising: a first upright tubular container, closed at its lower end and open at its upper end, for holding a quantity of water to be treated; a second upright tubular container, open at both its upper and lower ends, dimensioned to be telescopingly received within said first container through said upper end thereof; a cartridge having a substantially closed housing substantially confining water filtering material and dimensioned to be telescopingly received within said lower end of said second container, said cartridge including respective openings permitting a pressure-induced flow of water through the cartridge and said material confined therein; means for mounting said cartridge with respect to said lower end of said second container; a peripheral seal disposed between the inner wall of said first container and the outer wall of said second container; and said peripheral seal including means sealingly forced into closing relationship between the inner wall of said first container and the outer wall of said second container upon telescoping of said second container within said first container to urge said cartridge against said quantity of water.

Claim 39

Apparatus as defined in claim 25 in which said peripheral seal includes a downwardly-opening cup having a downwardly and outwardly depending resilient circumferential flap the free end of which is forced against said inner wall by said water upon said telescoping.

Claim 40

A portable water filter apparatus comprising: a first upright tubular container, closed at its lower end and open at its upper end, for holding a quantity of water to be treated; a second upright tubular container, open at both its upper and lower ends, dimensioned to be telescopingly received within said first container through said upper end thereof; a cartridge having a substantially closed housing substantially confining water filtering material and dimensioned to be telescopingly received within said lower end of said second container, said cartridge including respective openings permitting a pressure-induced flow of water through the cartridge and said material confined therein; means for mounting said cartridge with respect to said lower end of said second container; a peripheral seal disposed between the inner wall of said first container and the outer wall of said second container; and said cartridge permitting pressure-induced flow of water in either direction through said cartridge and said material confined therein.

Claim 41

A portable water filter apparatus comprising: a first upright tubular container, closed at its lower end and open at its upper end, for holding a quantity of water to be treated; a second upright tubular container, open at both its upper and lower ends, dimensioned to be telescopingly received within said first container through said upper end thereof; a cartridge having a substantially closed housing substantially confining water filtering material and dimensioned to be telescopingly received within said lower end of said second container, said cartridge including respective openings permitting a pressure-induced flow of water through the cartridge and said material confined therein; means for mounting said cartridge with respect to said lower end of said second container; a peripheral seal disposed between the inner wall of said first container and the outer wall of said second container; and said cartridge permitting pressure-induced flow of water in either direction through said cartridge and said material confined therein.