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US 5,273,649 AGranted
Personal water purification systems
OwnerJan H. Magnusson, Kristofer J. Magnussoninventors
Life of this patent
Estimating the term…
Abstract
Low volume, personal water purification systems including cartridges containing multi-valent iodine resins, granulated active carbons, and porous separation and filtration means. In one assembly, a first section of a multi-sectioned cartridge includes an inlet, a mouthpiece and a coupler. A second section includes mating coupling means and each section includes separate filtration and/or purification media. In other assemblies, cartridges of a variety of filtration/purification organizations mount within squeezable, vented housings including straws or self-sealing outlet ports. In still other assemblies, the cartridges couple to a manifold housing.
Claims29
Liquid purification apparatus comprising:
- (a) a tubular housing having a through bore and including first and second portions, said first portion including an inlet port to the bore and said second portion including an outlet port from the bore, and coupling means for securing said first and second portions to one another with the inlet and outlet ports at opposite ends of the housing;
- (b) a flexible tube coupled to said inlet port and having a filter mounted over a through bore;
- (c) filtration means contained in said first portion for filtering suspended particulates from liquid passing therethrough;
- (d) bactericide means contained within said first and second portions for devitalizing contaminants from liquid passing therethrough;
- and
- (e) means for separating and isolating said bactericide means and filtration means from one another and said inlet and outlet ports.
3 more elements
Liquid purification apparatus comprising:
- (a) a container having an open end and whereto a watertight cover is removably secured, said cover including vent means and an outlet aperture;
- (b) cartridge means mounted within said container for filtering and purifying liquids passing therethrough and including,
- 1) filter means secured to an inlet port of a tubular cartridge housing,
- 2) bactericide means contained within the cartridge housing proximal said filter means,
- 3) granular active carbon filtration means contained within the cartridge housing,
- 4) means for separating the filtration and bactericide means from one another and the inlet port and an outlet port of the cartridge housing, and
- 5) means for coupling the outlet port of the cartridge housing to the container in communication with the outlet aperture;
- and
- (c) wherein the container walls are resiliently flexible and whereby the container can be pressurized upon flexing the container walls.
6 more elements
Liquid purification apparatus comprising:
- (a) a first housing having an open end and means for securing and sealing the open end to a manifold, said manifold including inlet and outlet ports which communicate with the interior of the first housing and further including a projection having a bore aligned with the outlet port;
- (b) cartridge means for filtering and purifying liquids passing through said first housing and having a second housing including an inlet and an outlet port, wherein said second housing includes a surface adjacent the outlet port shaped to interconnect with a surface of said projection and restrain said second housing to said projection, and wherein said second housing contains, a bactericide, granular activated carbon and porous means for passing liquid and separating said bactericide and granular activated carbon from the inlet and outlet ports.
Liquid purification apparatus comprising:
- (a) a housing having a through bore and including first and second portions, wherein said first portion includes an inlet port to the bore and said second portion includes an outlet port from the bore, and wherein the first and second portions include surfaces having threads which threaded surfaces interconnect to restrain the first and second portions to one another with the inlet and outlet ports at opposite ends of the housing;
- (b) filtration means mounted to said first portion for filtering suspended particulates from liquid passing therethrough;
- (c) bactericide means contained within said first and second portions for devitalizing contaminants from liquid passing therethrough;
- and
- (d) porous means contained in said first and second housing portions for passing liquid and for isolating said bactericide means and filtration means from one another and said inlet and outlet ports.
2 more elements
Liquid purification apparatus comprising:
- (a) a housing having a through bore and including first and second portions, wherein said first portion includes an inlet port to the bore and said second portion includes an outlet port from the bore, wherein said first and second portions include concentrically aligning surfaces which couple to one another, and wherein one of the surfaces includes a slot and the other surface includes at least one radially extending projection which aligns with the slot and further including means for forming a liquid tight seal at the juncture between the first and second portions upon securing one to the other;
- (b) filtration means mounted to said first portion for filtering suspended particulates;
- (c) bactericide means contained within said first and second portions for devitalizing contaminants from liquid passing therethrough;
- and
- (d) porous means contained in said first and second housing portions for passing liquid and for isolating said bactericide means and filtration means from one another and said inlet and outlet ports.
2 more elements
Liquid purification apparatus comprising:
- (a) a housing having a through bore and including first and second portions, wherein said first portion includes an inlet port to the bore and said second portion includes an outlet port from the bore, an wherein said first and second portions include surfaces which are shaped to cooperatively interconnect and restrain the first and second portions to one another with the inlet and outlet ports at opposite ends of the housing;
- (b) filtration means mounted to said first portion for filtering suspended particulates from liquid passing therethrough;
- (c) bactericide means contained within said first and second portions for devitalizing contaminants from liquid passing therethrough;
- and
- (d) porous means contained within said first and second portions for passing liquid and for isolating said bactericide means and filtration means from one another and said inlet and outlet ports.
2 more elements
Dependencies are inferred from the claim text.