Double chamber water purification device
First Claim
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1. A portable water purification apparatus comprising:
- (a) a first chamber into which water to be purified may be drawn through an inlet by suction (or negative pressure), said first chamber being divided into at least two separated compartments,(b) a second chamber having an inlet into which water from the first chamber can be forced by a pumping action (or positive pressure), said second chamber being slideable within one of the compartments of the first chamber to provide both said negative pressure for drawing water into the first chamber as the second chamber is withdrawn partially from the first chamber, and to provide said positive pressure as the second chamber is returned into said first chamber,(c) a filter disposed at the inlet to the first chamber for preliminary filtration of water being drawn into the first chamber,(d) one of said compartments in the first chamber being adapted to hold a disinfecting agent,(e) a micro-filter positioned within the second chamber through which water can be forced by said pumping action to an outlet in the second chamber for purified water,(f) a mouthpiece at the outlet to the second chamber through which water forced through the micro-filter is directed, and(g) one-way check valves positioned at the inlets to the first and second chambers and between said separate compartments of the first chamber to allow passage of water in only one direction into the first chamber, through the compartments of the first chamber, and from the first chamber into the second chamber, but not in a reverse direction.
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Abstract
A portable device for filtering and purifying water comprised of an outer chamber and an inner chamber that is slidable within a section of the outer chamber, and a small pore size pre-filter, whereby water is drawn through the pre-filter into the first container section of the outer chamber where it is isolated and treated with a disinfectant agent, then is drawn out of the first container section and into the second container section, and then into the inner chamber, where it is passed across another filtering material such as an activated carbon bed, removing any remaining contaminants before the potable water exits through a mouthpiece.
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Citations
20 Claims
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1. A portable water purification apparatus comprising:
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(a) a first chamber into which water to be purified may be drawn through an inlet by suction (or negative pressure), said first chamber being divided into at least two separated compartments, (b) a second chamber having an inlet into which water from the first chamber can be forced by a pumping action (or positive pressure), said second chamber being slideable within one of the compartments of the first chamber to provide both said negative pressure for drawing water into the first chamber as the second chamber is withdrawn partially from the first chamber, and to provide said positive pressure as the second chamber is returned into said first chamber, (c) a filter disposed at the inlet to the first chamber for preliminary filtration of water being drawn into the first chamber, (d) one of said compartments in the first chamber being adapted to hold a disinfecting agent, (e) a micro-filter positioned within the second chamber through which water can be forced by said pumping action to an outlet in the second chamber for purified water, (f) a mouthpiece at the outlet to the second chamber through which water forced through the micro-filter is directed, and (g) one-way check valves positioned at the inlets to the first and second chambers and between said separate compartments of the first chamber to allow passage of water in only one direction into the first chamber, through the compartments of the first chamber, and from the first chamber into the second chamber, but not in a reverse direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A portable water purification apparatus comprising:
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(a) a first chamber into which water to be purified may be drawn through an inlet by suction (or negative pressure), said first chamber being divided into at least two separated compartments which may be physically associated and disassociated from each other and are interchangeable, (b) a second chamber having an inlet into which water from the first chamber can be forced by a pumping action (or positive pressure), said second chamber being slideable within one of the compartments of the first chamber to provide both said negative pressure for drawing water into the first chamber as the second chamber is withdrawn partially from the first chamber, and to provide said positive pressure as the second chamber is returned into said first chamber, (c) a filter disposed at the inlet to the first chamber for preliminary filtration of water being drawn into the first chamber, (d) one of said compartments in the first chamber being adapted to hold a disinfecting agent, (e) a micro-filter positioned within the second chamber through which water can be forced by said pumping action to an outlet in the second chamber for purified water, (f) a mouthpiece positionable at said outlet to the second chamber through which water forced through the micro-filter is directed, (g) one-way check valves positioned at the inlets to the first and second chambers and between said separate compartments of the first chamber to allow passage of water in only one direction into the first chamber, through the compartments of the first chamber, and from the first chamber into the second chamber, but not in a reverse direction; and (h) a cap assembly for operably securing said apparatus to the mouth of a water container and for purifying water in said container. - View Dependent Claims (16, 17)
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18. A portable water purification apparatus comprising:
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(a) a first chamber into which water to be purified may be drawn through an inlet by suction (or negative pressure), said first chamber being divided into a plurality of separated compartments, (b) a second chamber having an inlet into which water from the first chamber can be forced by a pumping action (or positive pressure), said first and second chambers both in the form of close fitting tubular elements with the second chamber in sliding engagement with one of the compartments of the first chamber to provide both said negative pressure for drawing water into the first chamber as the second chamber is withdrawn partially from the first chamber, and to provide said positive pressure as the second chamber is returned into said first chamber, (c) a filter detachable connected at the inlet to the first chamber for preliminary filtration of water being drawn into the first chamber, said filter also threadably connectable over an outlet to said second chamber to allow liquid to be passed through the filter in a reverse direction to remove debris from said filter, (d) one of said compartments in the first chamber being adapted to hold a disinfecting agent, (e) a micro-filter positioned within the second chamber through which water can be forced by said pumping action to said outlet in the second chamber for purified water, (f) a flexible gasket positioned on the outer surface of the second chamber to seal against leakage of water between the first and second chambers, (g) a mouthpiece threadably connectable to said outlet to the second chamber through which water forced through the micro-filter is directed, said mouthpiece having an internal orifice through which liquid can exit said mouthpiece, and a peripheral lip to facilitate moving said second chamber in a telescoping manner with respect to said first chamber, (h) one-way check valves positioned at the inlets to the first and second chambers and between said separate compartments of the first chamber to allow passage of water in only one direction into the first chamber, through the compartments of the first chamber, and from the first chamber into the second chamber, but not in a reverse direction, (i) said second chamber also having a plurality of separated compartments. - View Dependent Claims (19, 20)
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Specification