KR920003555B1 - Filter for water purifier - Google Patents

Filter for water purifier Download PDF

Info

Publication number
KR920003555B1
KR920003555B1 KR1019890016437A KR890016437A KR920003555B1 KR 920003555 B1 KR920003555 B1 KR 920003555B1 KR 1019890016437 A KR1019890016437 A KR 1019890016437A KR 890016437 A KR890016437 A KR 890016437A KR 920003555 B1 KR920003555 B1 KR 920003555B1
Authority
KR
South Korea
Prior art keywords
water
vortex
filter
water purifier
outlet
Prior art date
Application number
KR1019890016437A
Other languages
Korean (ko)
Other versions
KR910009316A (en
Inventor
이시영
아키라 시마구치
Original Assignee
이시영
아키라 시마구치
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 이시영, 아키라 시마구치 filed Critical 이시영
Priority to KR1019890016437A priority Critical patent/KR920003555B1/en
Publication of KR910009316A publication Critical patent/KR910009316A/en
Application granted granted Critical
Publication of KR920003555B1 publication Critical patent/KR920003555B1/en

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/01Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
    • B01D29/016Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements with corrugated, folded or wound filtering elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/76Handling the filter cake in the filter for purposes other than for regenerating
    • B01D29/86Retarding cake deposition on the filter during the filtration period, e.g. using stirrers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D61/00Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/025Reverse osmosis; Hyperfiltration

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Nanotechnology (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

The filter cartridge for cleaning water include organic or inorganic substance has a tubular outer-wall and end closures with screw which retain a particulate filter medium using the reverse-osmosis. The closures include apertures to permit the rectangular flow of liquid through the cartridge and also osmotic layer (7) which retain the particles inside the cartridge and disperse element (13) for occuring vortex in the lower sides of closures. The disperse element (13) consists of porous membrane (16) in the upper parts, wire gauze (17,17a) mounted lower the porous membrane, and space with small ball (18) formed in lower sides.

Description

정수기water purifier

제1도는 본 발명을 실시한 예시도.1 is an exemplary view of practicing the present invention.

제2도는 본 발명의 사시도.2 is a perspective view of the present invention.

제3도는 본 발명의 일부 절제사시도.3 is a partial ablation perspective view of the present invention.

제4도는 제2도의 분해사시도.4 is an exploded perspective view of FIG.

제5도는 제2도의 종단면도.5 is a longitudinal cross-sectional view of FIG.

제6도는 본 발명의 네트 확대도.6 is an enlarged view of the net of the present invention.

제7도는 본 발명의 삼투막 확대도.7 is an enlarged view of the osmosis membrane of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 본체 2 : 정수배출구1: main body 2: water purification outlet

3 : 오염물배출구 4 : 나선부3: pollutant outlet 4: spiral part

5, 15 : 구멍 7 : 삼투막층5, 15 hole 7: osmosis membrane layer

6 : 지지봉 8 : 네트층6: support rod 8: net layer

9 : 필터 11 : 뚜껑9: filter 11: lid

12 : 유입공 13 : 체상와류분산체12: inlet hole 13: sieve eddy dispersion

14 : 요홈 16 : 얇은막14: groove 16: thin film

17, 17a : 철망 18 : 구슬17, 17a: wire mesh 18: beads

19 : 유리입자 20 : 망눈19: glass particles 20: man eyes

21 : 공간부21: space part

본 발명은 정수기에 관한 것으로서 예를 들면 삼투막을 경계로 하여 물과 식염수를 넣으면 물은 삼투막을 통하여 식염수쪽으로 이동하게 되는데 이때 양측의 액면높이의 차가 생김과 동시에 농도가 같아지므로 물의 이동이 정지된다. 즉 농도가 낮은 측에서 농도가 높은(식염수)측으로 이동하는 현상을 삼투라 하고, 양측의 액면차이를 삼투압이라 한다. 여기서 식염수측에 삼투압 이상의 압력을 가하면 물은 지금까지의 반대로 식염수측에서 물측으로 이동하는 현상을 역삼투라하고 자연계에서 역으로 용액을 이동시키는 방법을 역삼투방식이라 하는데, 본 발명은 상기의 역삼투방식을 이용하여 원수에 용해되어 있는 유기물, 무기물등을 제거하여 보다 나은 정수를 얻도록 한 정수기에 관한 것이다.The present invention relates to a water purifier. For example, when water and saline are added at the boundary of the osmosis membrane, the water moves to the saline side through the osmosis membrane. At this time, the difference in the liquid level on both sides occurs and the concentration is the same, so the movement of water is stopped. That is, osmosis refers to the phenomenon of moving from the low concentration side to the high concentration (saline) side, and the difference in liquid level on both sides is called osmotic pressure. Here, the reverse osmosis is the reverse osmosis method of moving the solution from the saline side to the water side in reverse osmosis, when water is applied to the saline side to the pressure of more than osmotic pressure. The present invention relates to a water purifier which removes organic and inorganic substances dissolved in raw water by using a method to obtain better purified water.

일반적으로 무색투명한 물은 좋다는 개념이 통상적이지만, 물은 미량의 불순물이 섞여있어도 눈에 보이지 않는것으로 알려져있다. 대체로 물속에 어느정도의 불순물이 용해되어 있는가를 테스트하는데 동상 이 테스트를 전기통전테스트라 부르고 있지만, 본래 순수한물은 전기가 통하지 않는다.In general, colorless transparent water is a good concept, but water is known to be invisible even with a small amount of impurities. As a rule, it tests how much impurities are dissolved in the water. In-phase test is called electric conduction test, but pure water is not electricity.

그러나 물속에 불순물이 많이 함유되어 있는 경우는 전기가 흐른다. 따라서, 2개의 전극간에 전기가 흐르면 불순물이 매체가 되어 전기가 흐르게 되는 것이다.However, electricity flows when there are many impurities in the water. Therefore, when electricity flows between two electrodes, impurities become a medium and electricity flows.

그러나, 불순물이 거의 함유하고 있지 않으면 이른바 순수한 물속에는 전기가 매개로 하는 불순물이 없기 때문에 전기는 흐르지 않는다.However, if there is little impurity, electricity does not flow because there is no impurity which electricity is mediated in so-called pure water.

따라서, 상기와 같이 순수한 물을 얻기위해서는 일반적으로 정수방식과 여과방식이 있는데, 상기 여과방식으로는 활성탄필터(여과수)를 이용한 여과방식으로하되, 이는 침전물, 염소, 특정유기화합물을 제거하며, 물의 투명도 및 냄새, 맛은 좋게하나 용해고형물(중금속), 바이러스, 박테리아, 할로겐 방사성물질, 화학미립자는 제거할 수 없으며 필터주변에 박테리아번식의 온상이 되므로 상기 필터를 자주 교환해야하고, 필터의 흡착능력한계를 넘으면 오염물을 통과시켜 원수보다도 오염된 물을 얻게되며, 또한 연수화된 물은 마그네슘, 칼슘등을 제거하며, 한번 설치하면 사용 및 보수가 용이하나, 물에 포함된 나트륨의 양을 증가시키며, 용해고형물(중금속)바이러스, 박테리아와 같은 오염물, 방사성 오염물은 제거할 수 없고 상기 나트륨의 양이 많은 연수는 혈압, 심장 등 순환기계에 악영향을 밀칠 수 있었다.Therefore, in order to obtain pure water as described above, there are generally water purification method and filtration method, and the filtration method is an filtration method using an activated carbon filter (filtration water), which removes precipitates, chlorine, and specific organic compounds, and Transparency, odor and taste are good, but dissolved solids (heavy metal), viruses, bacteria, halogen radioactive materials and chemical fine particles cannot be removed and it is a breeding ground of bacteria around the filter. When the limit is exceeded, contaminants are passed through to obtain more contaminated water than raw water.In addition, softened water removes magnesium and calcium, and once installed, it is easy to use and repair, but increases the amount of sodium in the water. Soluble solids (heavy metals) viruses, contaminants such as bacteria, radioactive contaminants cannot be removed and the amount of sodium Silver training could adversely affect blood pressure and heart circulation.

또는 상기 정수방식의 이온교환수는 무기성 미네랄은 제거되나, 유기성미네랄이 포함된 고물은 제거할 수 없으며 이온교환수지를 빈번하게 교환하지 않으면 잡균의 온상이 되는 폐단이 있다.Alternatively, the ion-exchanged water of the purified water method may remove inorganic minerals, but may not remove solids including organic minerals, and there is a waste bed that becomes a hotbed of various bacteria if the ion-exchange resin is not frequently exchanged.

미네랄워터는 맛이 좋고, 냄새 및 투명도도 양호하나, 무기미네랄도 동시에 섭취하므로 체내에 축적되어 동맥경화, 간장, 요도, 담낭에 결석이 생기는 원인이되며,염소를 함유하지 않는 대신 병속에 잡균이 번식한다든지, 병을 연체로 놓으면 위생상 문제가 되는 폐단이 있었다.Mineral water tastes good, smells and clarity is good, but mineral minerals are also consumed at the same time, so it accumulates in the body, causing stones in the arteries, liver, urethra, and gallbladder. Breeding or placing the bottle in arrears led to hygiene problems.

본 발명은 상기한의 제반결점을 해소하고자 안출된 것으로 첨부도면에 의해 상세히 설명하면 다음과 같다.The present invention will be described in detail by the accompanying drawings to be devised to solve the above-mentioned drawbacks are as follows.

첨부도면 중 제1도 내지 제7도에 있어서, 1은 정수배출구(2) 및 오염물배출구(3)를 천공하고, 상부의 내주연에는 나선부(4)를 장설한 본체인데, 이 본체(1)의 내부에는 외주연에 축방향으로 다수의 구멍(5)이 천공된 지지봉(6)을 착설하되 상기 지지봉(6)의 외주연에 0.001 정도의 삼투막층(7), 네트층(8)의 순으로 투루말이식으로 여러겹을 말아 필터(9)를 형성하였으며 상기 지지봉(6)의 상단은 막히고 하단의 외주연에는 고무링(10)을 끼워, 본체(1)내에 필터(9)가 삽입된 부분과 정수배출구(2)를 연통시켰다. 11은 본체(1) 나선부(4)에 결합되는 뚜껑인데, 이 뚜껑(11)의 중앙에 유입공(12)이 천공되며 체상와류분산체(13)를 삽입할 수 있는 요홈(14)을 요설시키되, 체상와류분산체(13)의 상부에는 구멍(15)이 천공된 얇은막(16)을 설치하고 철망(17)과 철망(17a)을 설치하여 형성된 공간부(21)에 구슬(18)을 수납시킨 것이다. 19는 상기 네트층(8)의 망눈(20)에 삽입되는 0.1μ정도의 유리입자인데, 이 유리입자(19)는 물을 와류시킴과 동시에 네트층(8)의 망눈(20)에 쌓이는 불순물을 제거하는 역할을 한다.In FIGS. 1 to 7 of the accompanying drawings, 1 is a main body which drills the water purification outlet 2 and the pollutant discharge port 3, and has a spiral portion 4 installed at the upper inner circumference thereof. In the inner periphery, a support rod 6 having a plurality of holes 5 perforated in the axial direction is installed on the outer periphery, and the osmosis membrane layer 7 and the net layer 8 having a 0.001 per outer periphery of the support rod 6 are installed. The filter 9 was formed by rolling several layers in order, and the upper end of the support rod 6 was blocked and the rubber ring 10 was fitted to the outer periphery of the lower end, and the filter 9 was inserted into the main body 1. The part and the purified water outlet 2 were communicated. 11 is a lid coupled to the main body (1) helix (4), the inlet hole 12 is perforated in the center of the lid 11 and the groove (14) for inserting the body vortex dispersion (13) It is to be noted that the bead 18 is formed in the space 21 formed by installing a thin film 16 having holes 15 perforated in the upper part of the body vortex dispersion 13 and installing a wire mesh 17 and a wire mesh 17a. ) Is stored. 19 is about 0.1 μm of glass particles inserted into the mesh 20 of the net layer 8, and the glass particles 19 vortex water and at the same time, impurities accumulated in the mesh 20 of the net layer 8. Serves to remove it.

미설명부호 22는 뚜껑(11)의 유입공(12)에 연결되는 원수유입관인데, 이 원수유입관(22)은 수도밸브(도시하지 않았음)에 연동되어 있다. 23은 본체(1)의 오염물배출구(3)에 연결된 오염물배출관이다. 24는 본체(1)의 정수배출구(2)에 연결된 카본(CARBON)필터이다. 이와 같이 구성된 본 발명의 작용효과를 설명하면 다음과 같다.Reference numeral 22 is a raw water inlet pipe connected to the inlet 12 of the lid 11, the raw water inlet pipe 22 is linked to a water valve (not shown). 23 is a contaminant discharge pipe connected to the contaminant discharge port 3 of the main body 1. 24 denotes a carbon filter connected to the water purification outlet 2 of the main body 1. Referring to the effects of the present invention configured as described above are as follows.

즉 수도밸브(도시하지 않았음)에 연결된 원수유입관(22)을 본체(1)의 나선부(4)에 결합되어 있는 뚜껑(11)의 중앙유입공(12)에 연결한후 수도밸브를 열면 원수유입관(22)을 통해 유입되는 30~40psi 정도의 원수는 뚜껑(11)의 요홈(14)에 삽입되어 있는 체상와류분산체(13) 및 얇은막(16)의 구멍(15)으로 유입되며 철망(17)과 체상와류분산체(13) 및 하부철망(17a)사이에 있는 구슬(18)측으로 흐르게 되므로 이 흐름에 의해 원수는 체상와류분산체(13)의 철망(17), (17a)사이에서 상기 구슬(18)에 의해 소용돌이 즉 와류가 일어나게 되어 마치, 폭포에서 물이 떨어지는 부분은 맑고 그 밖으로 갈수록 불순물이 많아 흐려지는 것을 보는 것처럼 하부철망(17a)의 외주면으로 갈수록 불순물이 많아지게 된다.That is, the water inlet pipe 22 connected to the water valve (not shown) is connected to the central inlet hole 12 of the lid 11 coupled to the spiral portion 4 of the main body 1, and then the water valve is connected. When opened, raw water of about 30 to 40 psi introduced through the raw water inlet pipe 22 passes through the hole 15 of the sieve vortex dispersion 13 and the thin film 16 inserted into the recess 14 of the lid 11. Since it flows into the bead 18 between the wire mesh 17 and the sieve vortex dispersion 13 and the lower wire mesh 17a, the raw water is flowed into the wire mesh 17 of the sieve vortex dispersion 13 by this flow. Vortex, or vortex, is caused by the beads 18 between 17a), and as the water falls from the waterfall is clear, and more impurities are clouded out there, the impurities become more toward the outer circumferential surface of the lower wire mesh 17a. do.

이렇게하여 체상와류분산체(13)의 하부철망(17a)을 통과한 30~40psi의 원수는 본체(1) 내부의 지지봉(6)의 외주연에 불순물을 거르는 0.0001μ매쉬의 삼투막층(7) 및 네트층(8)이 두루말이상으로 여러겹으로 말은 필터(9)의 상부로 유입되는데 이때 상기 필터(9)의 네트층(8)은 원수가 흐르는 수로가 되므로 이수로인 네트층(8)의 망눈(20)에는 직경이 0.1μ정도의 유리입자(19)가 삽입되어 있으므로 이 유리입자(19)에 의해 각 네트층(8)의 망눈(20)에서 소용돌이(와류)가 생김으로서 일부는 상기 원수의 수압에 의해 삼투막층(7)에서 역삼투작용을 하고(즉 불순물을 거르며)나머지 불순물이 섞인물은 계속해서 흐르되, 상기 0.1μ정도의 유리입자(19)에 의해 네트층(8)의 각망눈(20)에 불순물이 적층되지 않고 계속해서 흘러 본체(1)의 오염물배출구(3)를 통해 외부로 배출하게되며 상기 역삼투작용에 의해 삼투막층(7)을 통과한 물은 다시 상기와같이 수로인 네트층(8)을 거쳐 역삼투작용을 계속하면서 정수되는 물은 필터(9)의 지지봉(6)외주연에 천공된 다수의 구멍(5)을 통해 본체(1)의 정수배출구(2) 및 카본필터(24)를 통해서 나오게되는 것이다. 따라서 상기 정수 배출구(2) 및 카본필터(24)를 거쳐 나온 정수는 하기비교표에서 보는 바와 같이 여과방식 또는 정수방식의 이온교환증류법에 비하여 월등히 좋은 정수를 얻을 수 있다.In this way, the raw water of 30-40 psi which passed through the lower wire mesh 17a of the sieve vortex dispersion 13 has a 0.0001μ-mesh osmotic membrane layer 7 which filters impurities on the outer periphery of the supporting rod 6 inside the main body 1. And the net layer 8 flows into the upper portion of the filter 9, which is rolled in multiple layers or more, wherein the net layer 8 of the filter 9 becomes a channel through which raw water flows. Since the glass particles 19 having a diameter of about 0.1 μm are inserted into the mans eyes 20, the glass particles 19 form vortices (vortices) in the mans eyes 20 of each net layer 8. The reverse osmosis (i.e., filtering out impurities) in the osmosis membrane layer 7 by the water pressure of the raw water and the water mixed with the remaining impurities continue to flow, and the net layer Impurities are not accumulated in each mesh 20 of 8) and continue to flow to the outside through the pollutant outlet 3 of the main body 1. The water that has passed through the osmosis membrane layer 7 by the reverse osmosis is purified again while continuing the reverse osmosis through the water channel net layer 8 as described above. Through a plurality of holes (5) perforated on the periphery is to come out through the water purification outlet (2) and the carbon filter (24) of the body (1). Therefore, the purified water discharged through the purified water discharge port 2 and the carbon filter 24 can obtain a much better purified water as compared to the ion exchange distillation method of the filtration method or the purified water method as shown in the following comparison table.

[비교표][Comparison Table]

Figure kpo00001
Figure kpo00001

상술한 바와 같이 본 발명은 체상와류분산체를 원수의 수압에 따라 간편히 교체사용하므로서 역삼투작용을 이용하여 박테리아 할로겐, 방사성 물질, 살충제, 공업발암물질 아스베스트(석면)나트륨, 칼슘, 마그네슘 카드늄 등의 무기질, 유기질을 제거한 정수를 얻을 수 있으며 또한 각 네트층의 망눈에 상기 불순물이 쌓이는 것을 0.1μ정도의 유리입자에 의해 네트층의 망눈에 누적되지 않고 오염물배출구로 배출되므로 종래의 필터보다도 수명이 한층더 연장되는 효과가 있으며 구조 또한 간단하고 국민건강을 증진시킬 수 있는 바 매우 획기적인 발명이다.As described above, the present invention utilizes reverse osmosis by simply using a body vortex dispersion according to the water pressure of raw water, using bacterial halogen, radioactive material, insecticide, industrial carcinogen, asbestos sodium, calcium, magnesium cadmium, etc. It is possible to obtain the purified water from which the inorganic and organic matters are removed. Also, the accumulation of impurities in the net of each net layer is not accumulated in the net of the net layer by 0.1 μm of glass particles and is discharged to the pollutant outlet. It is a very innovative invention because it has an extended effect and is simple in structure and can promote national health.

Claims (3)

본체(1)하부에 정수배출구(2) 및 오염물배출구(3)를 천공시키고 오염물배출구(3)에 오염물배출관(23)을 나합하며, 내면에는 외주연에 다수의 구멍(5)이 천공된 지지봉(6)에 불순물을 거르는 삼투막층(7) 및 원수의 수로가 되는 네트층(8)이 두루말이상으로 여러겹말은 필터(9)를 착설하여 상기 지지봉(6)의 하단을 정수배출구(2)와 연통시키고, 본체(1)의 나선부(4)에는 유입공(12)이 천공된 뚜껑(11)을 체결하되 상기 뚜껑(11) 저면에 요홈(14)을 요설하여 소용돌이(와류)를 일으키게하는 체상와류분산체(13)를 삽입한 것을 특징으로 한 정수기.Punch the water outlet (2) and the pollutant outlet (3) in the lower part of the main body (1), and join the pollutant discharge pipe (23) to the pollutant outlet (3), and a support rod having a plurality of holes (5) perforated in the outer periphery An osmosis membrane layer (7) filtering impurities in (6) and a net layer (8) serving as a channel of raw water are provided with a filter (9) in which multiple layers are stacked, and the lower end of the supporting rod (6) is purified water outlet (2). In communication with the spiral portion 4 of the main body 1, the inlet hole 12 is fastened to the lid 11, but the recessed groove (14) in the bottom surface of the lid 11 to induce a vortex (vortex) A water purifier characterized by inserting a body vortex dispersion (13). 제1항에 있어서, 상기 체상와류분산체(13)은 그 상부에 구멍(15)이 천공된 얇은막(16)을 설치하며 그 직하에 철망(17)을 설치하고, 하부에도 철망(17a)을 설치하여 형성된 공간부(21)에 구슬(18)을 장입하여 구성한 것을 특징으로 한 정수기용필터.The body vortex dispersion (13) according to claim 1, further comprising a thin film (16) having a hole (15) perforated therein and a wire mesh (17) directly beneath it, and a wire mesh (17a) at the bottom thereof. Water purifier filter, characterized in that configured by charging the beads (18) into the space portion 21 formed by installing the. 제1항에 있어서, 상기 네트층(8)은 그 망눈(20)에 불순물이 적층되지 않도록 소용돌이(와류)를 일으키도록 0.1μ이하의 유리입자(19)를 삽입하여 형성한 것을 특징으로 한 정수기.The water purifier according to claim 1, wherein the net layer (8) is formed by inserting glass particles (19) of 0.1 mu or less so as to cause vortex (vortex) so that impurities are not stacked in the mesh 20. .
KR1019890016437A 1989-11-13 1989-11-13 Filter for water purifier KR920003555B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019890016437A KR920003555B1 (en) 1989-11-13 1989-11-13 Filter for water purifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019890016437A KR920003555B1 (en) 1989-11-13 1989-11-13 Filter for water purifier

Publications (2)

Publication Number Publication Date
KR910009316A KR910009316A (en) 1991-06-28
KR920003555B1 true KR920003555B1 (en) 1992-05-04

Family

ID=19291598

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019890016437A KR920003555B1 (en) 1989-11-13 1989-11-13 Filter for water purifier

Country Status (1)

Country Link
KR (1) KR920003555B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018213295A1 (en) * 2017-05-15 2018-11-22 Tokyo Electron Limited In-situ selective deposition and etching for advanced patterning applications

Also Published As

Publication number Publication date
KR910009316A (en) 1991-06-28

Similar Documents

Publication Publication Date Title
CA2286223C (en) Filter cartridge for gravity-fed water treatment devices
US4298475A (en) Water purification system
US5569380A (en) Portable water filtering device
EP0797474B1 (en) Portable water purifying and drinking device
CN1331762C (en) Water purification system
JP2007029942A (en) Water cleaning system for drinking water and water cleaner
KR920003555B1 (en) Filter for water purifier
KR101510571B1 (en) structure of fitter for water purifier
KR20110058328A (en) Custom-type complex filter element, complex filter and waterpurifier employing it
KR200381845Y1 (en) Pre-filter for water purification apparatus
WO1999008768A1 (en) Filtration method and device for liquid purification
KR19980040299A (en) Filter cartridge for household water purifier.
KR200269448Y1 (en) Water wash air freshener
KR100699039B1 (en) Semi-permanant water purifier
CN216972166U (en) Household integrated ultrafiltration water purifier
KR890002198Y1 (en) Water-cleaning device
JPH01262983A (en) Water purifying device
KR102501340B1 (en) Apparatus for pretreatment of capacitive deionization
KR100416136B1 (en) Backwash type water purifier
CN208500595U (en) A kind of formula filter element for water purifier easy to clean
KR200317263Y1 (en) Filter cartridge for device of clean water
KR200223736Y1 (en) Machine for clean water
RU59997U1 (en) WATER TREATMENT UNIT
JPH0328886Y2 (en)
JPH06226262A (en) Water purifier

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
NORF Unpaid initial registration fee