CA1153835A - Water purification system - Google Patents
Water purification systemInfo
- Publication number
- CA1153835A CA1153835A CA000381979A CA381979A CA1153835A CA 1153835 A CA1153835 A CA 1153835A CA 000381979 A CA000381979 A CA 000381979A CA 381979 A CA381979 A CA 381979A CA 1153835 A CA1153835 A CA 1153835A
- Authority
- CA
- Canada
- Prior art keywords
- water
- section containing
- tube
- inlet
- contaminated water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
- C02F1/766—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens by means of halogens other than chlorine or of halogenated compounds containing halogen other than chlorine
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47G—HOUSEHOLD OR TABLE EQUIPMENT
- A47G21/00—Table-ware
- A47G21/18—Drinking straws or the like
- A47G21/188—Drinking straws or the like with filters to remove impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
- C02F1/002—Processes for the treatment of water whereby the filtration technique is of importance using small portable filters for producing potable water, e.g. personal travel or emergency equipment, survival kits, combat gear
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/208—Off-grid powered water treatment
Abstract
ABSTRACT
A portable water purifier is described comprising an elongated tube having a filtering agent, a bactericidal agent and an adsorbent material retained in the tube.
The user supplies suction from the mouth to draw water through the tube for filtering out foreign material and purifying the water prior to use.
A portable water purifier is described comprising an elongated tube having a filtering agent, a bactericidal agent and an adsorbent material retained in the tube.
The user supplies suction from the mouth to draw water through the tube for filtering out foreign material and purifying the water prior to use.
Description
WATER PURIFICATION SYSTEM
DESCRIPTION
Technical Field This invention relates to water purification systems and, in particular, to a personal portable water purifier.
Background of the Prior Art As the environment becomes more polluted, and lakes, rivers and streams become endless cesspools, a camper or hunter soon reali~es the necessity for carrying his own personal supply of water to avoid the necessity of exposing himself to the dangers of drinking polluted water.
Various practices have become commonplace in searching for drinking water, including boiling the water prior to drinking, and dissolving iodoform tablets into the water. Boiling water requires time and equipment, neither of which may be available when the water is required.
In addition, the water tastes flat as a result of the boiling. The iodoform tablets produce an undesirable taste and havetraditionally been unpopular for that reason.
Other water purification devices have been either too large or too heavy or have rendered the water quite distasteful. Some apparatus have limited capacity and can allow the passage of water even when its purification capacity is e~hausted, and allowing a user to drink contaminated water without knowledge of that fact.
Summar of 'he Invention Therefore, an object of the subject invention is a portable water purifier with a product that is pleasant to the taste.
Another object of the subject invention is a water purifier with a capacity to purif~ and disinfect the water greater than the filtering capacity of the purifier.
Still another object of the subject invention is a portable water purifier which may be stored and periodically used for periods up to a year while retaining its effectiveness.
These and other objects are attained in accordance with the present invention wherein there is provided an elongated tube which may be capped at both the inlet and outlet ends, with filter and purification materials intermediate. Bactericidal resin particles purify the water while a granular absorbent material, such as activated carbon and the like, adsorbs the other impurities which produce odor and taste. Filter media within the tube removes substantially all suspended particle matter in the water, resulting in clear, purified water emanating from the tube.
Brief Descri tion of Several Views of Drawings , p Further objects of the invention together with additional features contributing thereto and advantages accruing therfrom will be apparent from the following description of one embodiment of the invention when read in conjunction with the accompanying drawin~s wherein: -FIGURE 1 is a perspective view of o~e embodiment 5 of the subject invention;
FIGURE 2 is a cross-sectional view taken along lines ~-2 or FIGURE 1 showing the internal components of the water purilier of the subject invention.
Detailed Description Referring now to FIGURE 1, there is shown the water purification apparatus 10 comprising one embodiment of the invention. The water purification apparatus comprises a long, slender tube which may be formed of either glass, plastic or metal as desired. The tube is much in the nature of a drinking straw naving a diameter of such size for insertion into a user's mouth for applyiny suction. As shown in FIGURE 2, the tubing is preferably formed of plastic allowing it to be formed of inexpensive material. If desired, the plastic may be transparent polycarbonate in order to provide a visual sighting of the contents of the tube. In this manner, through change in color and other means of indication, it would be possible to provide a visual reference of the effectiveness of the purifying and filtration agents in the tube 25.
As shown in FIGURE 2, the tube 25 has an inlet 12 and an outlet 18. The inlet 12 has perforations 21 which allow the flow of water into the tube 25 while retaining the filtration material 13 inside the tube. Similarly, perforations 22 allow the flow of purified water from the tube while retaininy the filtration material 17 inside.
Caps 20 and 19 are attached by straps 27 and 26, respectively, to the tube ends 12 and 18 and may be used for preventing leakage when the purifier of the subject invention is not in use, while additionally keeping the mouthpiece 18 clean. As stated, the inlet cap 12 has perforations 21 to allow the easy flow of water into the tube 25. Adjacent inlet cap 12, inside the tube, is a primary filter material such as polyester filter fiber, 13L53~305 which remove~ much of the suspended particlate matter in the incoming water. Other filtering agents or materials may be used as found appropriate. Adjacent the primary filter material 13 is puri~ying medium 14. Preferably, the purifying medium 1~ is an iodinated cation exchange resin capable of purifying and disinfecting the incoming water, thereby instantaneously killing harmful bacteria as the water comes into contact with the resin.
Commercially, an appropriate purifying medium is generally known as triiodide resin. Other bactericidal mediums mav be used as desired.
Adjacent the purifying resin 14 is a secondary or intermediate filtration area containing filtration material 15 similar to the filtration material 13. If desired, filtration material lS may provide a finer mesh size for screening out smaller particles.
Adjacent the second filtration area lS is a granular adsorbent material having a large surface area, such as activated carbon and the like, which can adsorb impurities, organic liquids, gases, tastes and odors, making the water palatable. As is known, certain other hydrocarbon material which may pass through the purifying material 1~ will be adsorbed onto the activated carbon.
A final segment of filter media 17 removes substantially all the remaining particulate matter prior to the exit of the now-cleansed water through end cavity 18. As with the intermediate filter material, a finer mesh size than the primary filter material may be used. On passing through each of the filter areas and the purifying and adsorbing material results in a crystal-clear, bacteria- and virus-free, good tasting water, when used with a non-saline source. According to tests required under Federal Law, water containing 200,000-300,000 escherichia-coli micro-organisms per milliliter has been run through the water purification unit of the subject invention and the 11~3~3~
effluent from the unit contains less than one micro-organism per 100 milliliters. In addition, the subject invention has been tested with raw sewage, river water, urine, etC.~and in all cases, a clear, colorless, good tasting, bacteria- and virus-free water was the final product.
In the use of the subject invention, the end caps 19 and 20 are removed from opposing end portions 12 and 18, respectively, and the inlet portion 12 is inserted into the source of water, such as a pond or river. The user places his mouth over the mouthpiece 18 and, much as in the nature of a straw, sucks the water inward, past the filtering and purifying media within, into his mouth.
Since a majority of the tube is filled with a purifying medium 14 and the adsorbent medium 1~, the useful life of the subject invention is determined principally by the length of time and periods of use required for the inlet filter 13 to become clogged. Thus, unless contaminated water with relatively little suspended particle matter is a constant source for purification through the subject invention, the inlet filter 13 will be clogged long before the purifying capacity of the tube of the subject invention is exhausted. With the clogging of the inlet filter 13, there can be no passage of water through the tube 25 and the user will reali~e that the usefulness of the tube of the subject invention has been spent and should be discarded at that time. Because of the inexpensive nature of the subject invention, it is disposable in nature and, therefore, may then be tossed into the nearest waste receptacle.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention.
..
~1~i3~3~
.
In addition, many modifications may be made to adapt a particular situation or material to the teachings of the i.nvention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed as the best mode contemplated for carrying out the invention, but that the invention will include all embodiments falling within the scope of the appended Claims.
DESCRIPTION
Technical Field This invention relates to water purification systems and, in particular, to a personal portable water purifier.
Background of the Prior Art As the environment becomes more polluted, and lakes, rivers and streams become endless cesspools, a camper or hunter soon reali~es the necessity for carrying his own personal supply of water to avoid the necessity of exposing himself to the dangers of drinking polluted water.
Various practices have become commonplace in searching for drinking water, including boiling the water prior to drinking, and dissolving iodoform tablets into the water. Boiling water requires time and equipment, neither of which may be available when the water is required.
In addition, the water tastes flat as a result of the boiling. The iodoform tablets produce an undesirable taste and havetraditionally been unpopular for that reason.
Other water purification devices have been either too large or too heavy or have rendered the water quite distasteful. Some apparatus have limited capacity and can allow the passage of water even when its purification capacity is e~hausted, and allowing a user to drink contaminated water without knowledge of that fact.
Summar of 'he Invention Therefore, an object of the subject invention is a portable water purifier with a product that is pleasant to the taste.
Another object of the subject invention is a water purifier with a capacity to purif~ and disinfect the water greater than the filtering capacity of the purifier.
Still another object of the subject invention is a portable water purifier which may be stored and periodically used for periods up to a year while retaining its effectiveness.
These and other objects are attained in accordance with the present invention wherein there is provided an elongated tube which may be capped at both the inlet and outlet ends, with filter and purification materials intermediate. Bactericidal resin particles purify the water while a granular absorbent material, such as activated carbon and the like, adsorbs the other impurities which produce odor and taste. Filter media within the tube removes substantially all suspended particle matter in the water, resulting in clear, purified water emanating from the tube.
Brief Descri tion of Several Views of Drawings , p Further objects of the invention together with additional features contributing thereto and advantages accruing therfrom will be apparent from the following description of one embodiment of the invention when read in conjunction with the accompanying drawin~s wherein: -FIGURE 1 is a perspective view of o~e embodiment 5 of the subject invention;
FIGURE 2 is a cross-sectional view taken along lines ~-2 or FIGURE 1 showing the internal components of the water purilier of the subject invention.
Detailed Description Referring now to FIGURE 1, there is shown the water purification apparatus 10 comprising one embodiment of the invention. The water purification apparatus comprises a long, slender tube which may be formed of either glass, plastic or metal as desired. The tube is much in the nature of a drinking straw naving a diameter of such size for insertion into a user's mouth for applyiny suction. As shown in FIGURE 2, the tubing is preferably formed of plastic allowing it to be formed of inexpensive material. If desired, the plastic may be transparent polycarbonate in order to provide a visual sighting of the contents of the tube. In this manner, through change in color and other means of indication, it would be possible to provide a visual reference of the effectiveness of the purifying and filtration agents in the tube 25.
As shown in FIGURE 2, the tube 25 has an inlet 12 and an outlet 18. The inlet 12 has perforations 21 which allow the flow of water into the tube 25 while retaining the filtration material 13 inside the tube. Similarly, perforations 22 allow the flow of purified water from the tube while retaininy the filtration material 17 inside.
Caps 20 and 19 are attached by straps 27 and 26, respectively, to the tube ends 12 and 18 and may be used for preventing leakage when the purifier of the subject invention is not in use, while additionally keeping the mouthpiece 18 clean. As stated, the inlet cap 12 has perforations 21 to allow the easy flow of water into the tube 25. Adjacent inlet cap 12, inside the tube, is a primary filter material such as polyester filter fiber, 13L53~305 which remove~ much of the suspended particlate matter in the incoming water. Other filtering agents or materials may be used as found appropriate. Adjacent the primary filter material 13 is puri~ying medium 14. Preferably, the purifying medium 1~ is an iodinated cation exchange resin capable of purifying and disinfecting the incoming water, thereby instantaneously killing harmful bacteria as the water comes into contact with the resin.
Commercially, an appropriate purifying medium is generally known as triiodide resin. Other bactericidal mediums mav be used as desired.
Adjacent the purifying resin 14 is a secondary or intermediate filtration area containing filtration material 15 similar to the filtration material 13. If desired, filtration material lS may provide a finer mesh size for screening out smaller particles.
Adjacent the second filtration area lS is a granular adsorbent material having a large surface area, such as activated carbon and the like, which can adsorb impurities, organic liquids, gases, tastes and odors, making the water palatable. As is known, certain other hydrocarbon material which may pass through the purifying material 1~ will be adsorbed onto the activated carbon.
A final segment of filter media 17 removes substantially all the remaining particulate matter prior to the exit of the now-cleansed water through end cavity 18. As with the intermediate filter material, a finer mesh size than the primary filter material may be used. On passing through each of the filter areas and the purifying and adsorbing material results in a crystal-clear, bacteria- and virus-free, good tasting water, when used with a non-saline source. According to tests required under Federal Law, water containing 200,000-300,000 escherichia-coli micro-organisms per milliliter has been run through the water purification unit of the subject invention and the 11~3~3~
effluent from the unit contains less than one micro-organism per 100 milliliters. In addition, the subject invention has been tested with raw sewage, river water, urine, etC.~and in all cases, a clear, colorless, good tasting, bacteria- and virus-free water was the final product.
In the use of the subject invention, the end caps 19 and 20 are removed from opposing end portions 12 and 18, respectively, and the inlet portion 12 is inserted into the source of water, such as a pond or river. The user places his mouth over the mouthpiece 18 and, much as in the nature of a straw, sucks the water inward, past the filtering and purifying media within, into his mouth.
Since a majority of the tube is filled with a purifying medium 14 and the adsorbent medium 1~, the useful life of the subject invention is determined principally by the length of time and periods of use required for the inlet filter 13 to become clogged. Thus, unless contaminated water with relatively little suspended particle matter is a constant source for purification through the subject invention, the inlet filter 13 will be clogged long before the purifying capacity of the tube of the subject invention is exhausted. With the clogging of the inlet filter 13, there can be no passage of water through the tube 25 and the user will reali~e that the usefulness of the tube of the subject invention has been spent and should be discarded at that time. Because of the inexpensive nature of the subject invention, it is disposable in nature and, therefore, may then be tossed into the nearest waste receptacle.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention.
..
~1~i3~3~
.
In addition, many modifications may be made to adapt a particular situation or material to the teachings of the i.nvention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed as the best mode contemplated for carrying out the invention, but that the invention will include all embodiments falling within the scope of the appended Claims.
Claims (2)
1. A portable water purifying apparatus for treating contaminated water to provide drinking water solely from the passage of said contaminated water through said apparatus comprising an elongated tube having a diameter of a size as to allow suction to be applied by a user's mouth, said tube having an interior conduit connecting an upper outlet and a lower inlet, said conduit having successive adjacent sections from said inlet and said outlet, a first section containing a primary filter means for removing particulate matter, a second section containing a halogenated ion exchange resin for removing harmful bacteria, viruses and the like, a third section containing a secondary filtration material for removing additional particulate material, a fourth section containing activated carbon granules for removing undesirable odors, tastes and hydrocarbons, and a fifth section containing a secondary filter means for removing substantially all remaining particulate matter, whereby on the application of said suction when said lower inlet is inserted into a source of contaminated water, said contaminated water is treated to permit the ingestion of water directed from said upper outlet.
2. The water purifying apparatus of Claim 1, further including cap means on each of said inlet and outlet for sealing said apparatus when not in use.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/170,023 US4298475A (en) | 1980-07-18 | 1980-07-18 | Water purification system |
| US170,023 | 1988-03-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1153835A true CA1153835A (en) | 1983-09-13 |
Family
ID=22618217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000381979A Expired CA1153835A (en) | 1980-07-18 | 1981-07-17 | Water purification system |
Country Status (15)
| Country | Link |
|---|---|
| US (1) | US4298475A (en) |
| EP (1) | EP0056054B1 (en) |
| JP (2) | JPS57501221A (en) |
| BR (1) | BR8108705A (en) |
| CA (1) | CA1153835A (en) |
| ES (1) | ES268150Y (en) |
| GB (1) | GB2080278B (en) |
| IL (1) | IL63353A (en) |
| IN (1) | IN155416B (en) |
| IT (1) | IT1142851B (en) |
| PH (1) | PH17774A (en) |
| PL (1) | PL232263A1 (en) |
| WO (1) | WO1982000256A1 (en) |
| YU (1) | YU178981A (en) |
| ZA (1) | ZA814703B (en) |
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| US3392837A (en) * | 1965-10-13 | 1968-07-16 | William A. Sanzenbacher | Water-conditioning unit |
| US3389803A (en) * | 1967-10-09 | 1968-06-25 | Edward S. Barley | Orally operable water filter |
| US3923665A (en) * | 1969-12-03 | 1975-12-02 | Univ Kansas State | Demand bactericide for disinfecting water and process of preparation |
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| DE2355895C3 (en) * | 1972-11-09 | 1978-09-28 | Matsushita Electric Industrial Co., Ltd., Kadoma, Osaka (Japan) | Water purifier |
| JPS5441549A (en) * | 1977-09-08 | 1979-04-02 | Tokyo Purojiekuto Kk | Simple water purifier |
| JPS5454444A (en) * | 1977-10-08 | 1979-04-28 | Tokyo Purojiekuto Kk | Simple water purifier |
| JPH089158Y2 (en) * | 1990-05-17 | 1996-03-13 | 日本碍子株式会社 | Metal melt filter cartridge |
| JP2511236Y2 (en) * | 1993-08-06 | 1996-09-25 | 日本ゼニスパイプ株式会社 | Equipment for removing air bubbles etc. in a flat die for vibration production of concrete secondary products |
-
1980
- 1980-07-18 US US06/170,023 patent/US4298475A/en not_active Expired - Lifetime
-
1981
- 1981-07-02 GB GB8120411A patent/GB2080278B/en not_active Expired
- 1981-07-10 ZA ZA814703A patent/ZA814703B/en unknown
- 1981-07-14 ES ES1981268150U patent/ES268150Y/en not_active Expired
- 1981-07-16 PH PH25921A patent/PH17774A/en unknown
- 1981-07-16 IT IT48917/81A patent/IT1142851B/en active
- 1981-07-17 CA CA000381979A patent/CA1153835A/en not_active Expired
- 1981-07-17 BR BR8108705A patent/BR8108705A/en unknown
- 1981-07-17 IL IL63353A patent/IL63353A/en unknown
- 1981-07-17 EP EP81902148A patent/EP0056054B1/en not_active Expired
- 1981-07-17 PL PL23226381A patent/PL232263A1/xx unknown
- 1981-07-17 JP JP56502629A patent/JPS57501221A/ja active Pending
- 1981-07-17 WO PCT/US1981/000965 patent/WO1982000256A1/en active IP Right Grant
- 1981-07-18 IN IN806/CAL/81A patent/IN155416B/en unknown
- 1981-07-20 YU YU01789/81A patent/YU178981A/en unknown
-
1985
- 1985-06-20 JP JP1985092348U patent/JPS6125991U/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| EP0056054A4 (en) | 1982-11-25 |
| IL63353A (en) | 1985-02-28 |
| WO1982000256A1 (en) | 1982-02-04 |
| GB2080278B (en) | 1984-05-10 |
| IT1142851B (en) | 1986-10-15 |
| EP0056054B1 (en) | 1985-04-17 |
| BR8108705A (en) | 1982-06-01 |
| ES268150Y (en) | 1984-09-01 |
| JPS57501221A (en) | 1982-07-15 |
| EP0056054A1 (en) | 1982-07-21 |
| JPS6125991U (en) | 1986-02-15 |
| ES268150U (en) | 1984-02-01 |
| IT8148917A0 (en) | 1981-07-16 |
| US4298475A (en) | 1981-11-03 |
| IN155416B (en) | 1985-01-26 |
| PH17774A (en) | 1984-12-11 |
| PL232263A1 (en) | 1982-04-26 |
| GB2080278A (en) | 1982-02-03 |
| IL63353A0 (en) | 1981-10-30 |
| ZA814703B (en) | 1982-07-28 |
| YU178981A (en) | 1983-02-28 |
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| MKEX | Expiry |