[특허]Water quality monitor for a water purification system

[미국특허] Water quality monitor for a water purification system 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B01D-017/12
출원번호	US-0212364 (1994-03-14)
발명자 / 주소	Burrows Bruce D. (Valencia CA)
출원인 / 주소	Hydrotechnology, Inc. a California corp. (Valencia CA 02)
인용정보	피인용 횟수 : 35 인용 특허 : 0

초록 ▼

An improved water quality monitor is provided for use in a water purification system of the type having a reverse osmosis unit for producing relatively pure water from a tap water supply. The reverse osmosis unit supplies produced purified water to a reservoir for storage until dispensing, as by opening a faucet valve. An inlet shut-off valve closes to prevent tap water inflow to the reverse osmosis unit when the reservoir reaches a substantially filled condition. The water quality monitor includes electrodes in contact with the tap water and the produced purified water to obtain comparative conductivity readings which represent the performance level of the reverse osmosis unit in removing impurities from the tap water inflow. The monitor includes a test circuit responsive to movement of the inlet shut-off valve to take a conductivity reading at a point in time substantially after the shut-off valve opens to resume tap water inflow to the reverse osmosis unit, and substantially prior to shut-off valve closure when the reservoir reaches the filled condition. In one embodiment, the conductivity reading is triggered by the position of the inlet shut-off valve. In other embodiments, the conductivity reading is triggered in response to a float-mounted switch within the reservoir. In either case, the conductivity reading is stored in memory for subsequent periodic display, for example, each time the faucet valve is opened, by energization of one or more indicator lights.

대표청구항 ▼

A water purification system, comprising: purification means for producing relatively purified water from a tap water supply; a reservoir for receiving and storing the purified water; dispensing means for dispensing the purified water from the system; inlet shut-off valve means responsive to the level of purified water within said reservoir and including a valve member movable to an open position permitting tap water flow to said purification means when the level of purified water within said reservoir is below a filled condition, and a closed position preventing tap water flow to said purification means when the level of purified water within said reservoir is at the filled condition; and a water quality monitor for testing the conductivity of the purified water and for providing an indication of unsatisfactory system performance when the conductivity indicates unsatisfactory system performance, said monitor including test means for taking a conductivity reading, means responsive to a rising water level and within said reservoir for actuating said test means to take a conductivity reading at a point in time substantially mid-cycle between movement of said valve member to said open position and subsequent movement of said valve member to said closed position, memory means for storing said conductivity reading, and indicator means for indicating said conductivity reading when said reading indicates unsatisfactory system performance.

이 특허를 인용한 특허 (35) 인용/피인용 타임라인 분석

Podlesak Thomas F. (Oakhurst NJ), Apparatus and method for indicating electrical breakdown in water cooling systems.
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Prakash, Prakhar; Pauley, James Craig; Pruet, Randall B., Apparatus and process for treatment of water.
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Prakash, Prakhar; Pauley, James Craig; Pruet, Randall B., Apparatus and process for treatment of water.
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Chaney, David B.; Gerig, Galen L., Combined filter manifold and shut-off valve for a water purification system.
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Joyce, Jonathan Livingston; Teegarden, Kelly Stewart, Dispensing measurement device and method of measuring dispensing.
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Joyce, Jonathan Livingston; Teegarden, Kelly Stewart, Dispensing measurement device and method of measuring dispensing.
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Shang-Chun Lin,TWX, Drinking water purification machine having upstream reservoir, reverse osmosis filter and purified water storage tank.
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Schmitt, Craig A.; Henss, Mark; Murphy, Shannon, Faucet assembly with water quality indicator.
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Burrows,Bruce D.; Chaney,David B.; Busick,Louis M., Filter cartridge and manifold for a water purification system.
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John D. Tanner ; David J. Emmons ; Erik G. Orwoll, Filter cartridge assembly for water treatment device.
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Chowdhury, Sudhir, Method for monitoring water quality.
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Mitchell, Michael Donovan; Collias, Dimitris Ioannis; Bjorkquist, David William; Zaveri, Piyush Narendra; Woolley, Matthew Morgan, Methods for treating water.
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Mitchell, Michael Donovan; Collias, Dimitris Ioannis; Bjorkquist, David William; Zaveri, Piyush Narendra; Woolley, Matthew Morgan, Methods for treating water.
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Mitchell, Michael Donovan; Collias, Dimitris Ioannis; Bjorkquist, David William; Zaveri, Piyush Narendra; Woolley, Matthew Morgan, Methods of treating water.
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Schmitt,Craig A., One-piece manifold for a reverse osmosis system.
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Baarman,David W.; Clews,Andrew M.; Kuennen,Roy W., Remotely controllable outlet for water treatment system.
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Beall, Timothy A., Reverse osmosis filtration system storage tanks.
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Beall, Timothy A., Reverse osmosis filtration system storage tanks.
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Beall, Timothy A., Reverse osmosis filtration systems.
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Beall, Timothy Allen, Reverse osmosis systems with built in pressure regulation.
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Barker, Jack E.; Barker, Carmen L., Self powered water purification system.
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Barker, Jack E.; Barker, Carmen L., Self powered water purification system.
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Julos, John Jay; Beall, Timothy Allen, Storage tank assemblies and methods for water on water reverse osmosis systems.
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Busick Louis M. ; Burrows Bruce D., Thermoelectric water cooler.
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Fritze,Karl, Water filter assembly for use in an appliance.
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Tanner John D. ; Emmons David J., Water filter cartridge end-of-life mechanism.
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Kurt C. Senner ; Robert L. Wetekamp, Water filter cartridge replacement system for a refrigerator.
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Tanner, John D.; Emmons, David James; Riedel, Richard P., Water filter device.
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Tanner, John D.; Riedel, Richard P.; Carroll, Maureen; Fontier, Malcolm, Water filter device.
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Bahm, Jeannine Rebecca; Pearks, Andrew Thomas; Vidal, Guillermo Matias; Collias, Dimitris Ioannis; Mitchell, Michael Donovan; Astle, Robert E.; Faye, Katharine L. K.; Governal, Robert Andrew; Hamlin, Thomas J.; Lucht, Rebecca A.; Patel, Hemang, Water filter materials and water filters containing a mixture of microporous and mesoporous carbon particles.
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Guess, Ronald W.; Beard, Dale A.; Glotzbach, Patrick J.; Snyder, Keith A., Water filter monitoring and indicating system.
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Doran, Paul S., Water purification, enhancement, and dispensing appliance.
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Tanner, John D.; Emmons, David James; Riedel, Richard P.; Mitchell, Michael Donovan; Collias, Dimitris Ioannis, Water treating methods.
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Tanner, John D.; Emmons, David J.; Orwoll, Erik G., Water treatment device with fill-counting cartridge.
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Schmitt,Craig A., Zero waste reverse osmosis water filtering.
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A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Water quality monitor for a water purification system 원문보기