KR950009012Y1 - Filtration apparatus for chaff - Google Patents
Filtration apparatus for chaff Download PDFInfo
- Publication number
- KR950009012Y1 KR950009012Y1 KR92016967U KR920016967U KR950009012Y1 KR 950009012 Y1 KR950009012 Y1 KR 950009012Y1 KR 92016967 U KR92016967 U KR 92016967U KR 920016967 U KR920016967 U KR 920016967U KR 950009012 Y1 KR950009012 Y1 KR 950009012Y1
- Authority
- KR
- South Korea
- Prior art keywords
- wastewater
- chamber
- chaff
- filter
- filtered
- 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 - Fee Related
Links
- 238000001914 filtration Methods 0.000 title claims description 20
- 239000002351 wastewater Substances 0.000 claims description 65
- 238000004065 wastewater treatment Methods 0.000 claims description 9
- 238000004075 wastewater filtration Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 18
- 241000209094 Oryza Species 0.000 description 3
- 235000007164 Oryza sativa Nutrition 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 235000009566 rice Nutrition 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 241000746966 Zizania Species 0.000 description 1
- 235000002636 Zizania aquatica Nutrition 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000010840 domestic wastewater Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000010903 husk Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/02—Loose filtering material, e.g. loose fibres
- B01D39/04—Organic material, e.g. cellulose, cotton
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/13—Supported filter elements
- B01D29/23—Supported filter elements arranged for outward flow filtration
- B01D29/27—Filter bags
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/60—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration
- B01D29/605—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration by level measuring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/12—Devices for taking out of action one or more units of multi- unit filters, e.g. for regeneration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/26—Filters with built-in pumps filters provided with a pump mounted in or on the casing
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/286—Treatment of water, waste water, or sewage by sorption using natural organic sorbents or derivatives thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Sorption (AREA)
- Filtration Of Liquid (AREA)
Abstract
내용 없음.No content.
Description
제 1 도는 본고안의 전체사시도.1 is a perspective view of the present article.
제 2 도는 본고안의 종단면도.2 is a longitudinal sectional view of the present article.
제 3 도는 본고안의 여과망의 일부확대단면도.3 is an enlarged sectional view of a part of the filtering network in this paper.
제 4 도는 본고안의 왕겨필터의 단면도.4 is a cross-sectional view of the rice hull filter in the present article.
제 5 도는 본고안의 다른 실시예의 일부단면도.5 is a partial cross-sectional view of another embodiment of the present disclosure.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
100 : 폐수처리장 10 : 수직격판100: wastewater treatment plant 10: vertical plate
11 : 통공 20 : 폐수유입실11: through-hole 20: wastewater inlet room
21 : 횡망 24 : 유입관21: lateral network 24: inlet pipe
25 : 걸름망 26 : 폐수배출관25: filter network 26: wastewater discharge pipe
30 : 폐수여과실 31 : 이송관30: waste filtration room 31: transfer pipe
32 : 펌프 33 : 여과수배출관32: pump 33: filtered water discharge pipe
40 : 왕겨필터주머니 A. B : 수위감지수단40: chaff filter bag A. B: level detection means
본 고안은 왕겨를 이용한 폐수처리장치에 관한 것으로 본 고안의 폐수는 물론 폐유가 함유된 생활용수등을 저럼한 비용으로 처리할 수 있으며, 폐수처리용 필터를 왕겨를 이용하므로써 필터의 수거처리가 용이하고 종래 광물성 여과물에 비해 흡수, 흡입, 흡착, 흡색력을 높이므로 폐수처리의 효과를 배가하도록 한 것에 그 목적이 있다.The present invention relates to a wastewater treatment apparatus using chaff, and can treat wastewater of the present invention as well as domestic water containing waste oil at a low cost, and it is easy to collect the filter by using the chaff as a wastewater treatment filter. The purpose of the present invention is to increase the absorption, suction, adsorption, and color absorption power of the conventional mineral filtrate, thereby doubling the effect of wastewater treatment.
종래에도 왕겨를 이용한 폐수처리장치가 있었으나(공개특허 제93-7814호), 이는 왕겨를 특수처리하여 활성화시킨것을 사용하였으며, 특히 그 폐수처리장치의 구조는 상하유수법에 의하여 여과함으로 위에서 아래로 흐르는 힘에 의하여 불순물이 배수구로 휩쓸려나가며 특수처리된 활성화 왕겨를 사용하므로써 왕겨 필터의 교채비용이 많이들며 특히 왕겨 필터의 구조가 복잡하여 교체작업이 번거로운 결점이 있었다.Conventionally, there was a wastewater treatment apparatus using chaff (Public Patent No. 93-7814), but it was used to activate the chaff by special treatment, and in particular, the structure of the wastewater treatment apparatus was filtered from the top and the bottom of the bottom to top down. Impurities are swept into the drain by the flowing force, and the use of specially treated activated rice hulls makes the chaff filter expensive, and the chaff filter's structure is complicated, making replacement work cumbersome.
본 고안은 상기의 결점을 해결하고자 유입되는 폐수를 직하처리 방식을 배재하고 물의 수평이동에 의한 침진방식을 채택하며 침진물을 흡착하는 흡착제는 자연산 왕겨를 일정규격의 망주머니에 충전한 왕겨필터를 사용하므로 폐수는 물론 폐유가 함유되는 생활폐수를 완전 흡착처리하도록 한 것으로 이를 첨부된 도면에 의거 상세히 설명하면 다음과 같다.In order to solve the above drawback, the present invention excludes the incoming wastewater by direct treatment method, adopts the sedimentation method by horizontal movement of water, and the adsorbent which adsorbs the sediment is charged with chaff filter filled with wild rice husk in certain standard bag. As a result, the wastewater, as well as the wastewater containing the domestic wastewater, are completely adsorbed, which will be described in detail with reference to the accompanying drawings.
제 1 도는 본 고안의 전체 사시도이며 폐수처리탱크(100)내에 수직격판(10)이 설치되어 폐수유입실(20)과 폐수여과실(30)이 구성되어 있다.1 is an overall perspective view of the present invention, the vertical plate 10 is installed in the wastewater treatment tank 100, the wastewater inlet chamber 20 and the wastewater filtration chamber 30 is configured.
폐수유입실(20)은 횡망(21)이 횡설되어 있고 횡망(21)상부에는 폐수유입관(24)의 배출구에 걸름망(25)이 설치되어 있고 측벽하단에는 폐수배출구(26)가 설치되어 있다.In the wastewater inlet chamber 20, a horizontal mesh 21 is laid horizontally, and a filtering net 25 is provided at an outlet of the wastewater inlet pipe 24 above the horizontal mesh 21, and a wastewater outlet 26 is provided at the bottom of the side wall. .
폐수여과실(30)에는 왕겨필터주머니(40)가 일정높이까지 적재되어 있고, 일측에는 이송관(31)이 입설되어 일단(31a)은 폐수여과실(30)의 저부까지 연장되고, 이송간(31)의 타단(31b)은 폐수유입실(20)의 상단부에 설치되어 펌퍼(32)로 폐수를 폐수유입실(20)로 이송하게 구성된다.The chaff filter bag 40 is loaded up to a certain height in the wastewater filtering room 30, and a transfer pipe 31 is installed at one side thereof so that one end 31a extends to the bottom of the wastewater filtering room 30, and The other end 31b of 31 is installed at the upper end of the wastewater inlet chamber 20 and is configured to transfer wastewater to the wastewater inlet chamber 20 by the pump 32.
부호 33은 여과된 물을 배출하는 여과수배출관이며 A, B는 수위감지수단이다.Reference numeral 33 is a filtered water discharge pipe for discharging the filtered water, and A and B are water level sensing means.
제 2 도는 본고안의 종단면도이다.2 is a longitudinal sectional view of the present invention.
수직격판(10)은 중간부에 통공(11)이 뚫려있으며 수직격판(10)좌측에는 폐수유입실(20)이 있고 우측에는 폐수여과실(30)이 구성되어 있다.Vertical plate 10 has a through-hole 11 in the middle portion, the wastewater inlet chamber 20 is on the left side of the vertical plate 10 and the wastewater filtration chamber 30 is configured on the right side.
폐수유입실(20)은 횡망(21)으로 수평분할되어 있으며 폐수는 폐수 유입관(24)으로 유입되어 걸름망을 통해 1차 걸러지고 횡망(21)을 통해 2차 걸러지며 이어서 폐수는 폐수유입실(20)에 유입된다.The wastewater inlet chamber 20 is horizontally divided into a horizontal network 21, and the wastewater flows into the wastewater inlet pipe 24 and is first filtered through the filtering network and secondly filtered through the horizontal network 21. Flows into (20).
유입된 폐수는 충입되어 일정수위까지 높아지면 수직격관의 통공(11)을 통해 폐수여과실(30)로 수평 이동되는 것이다.When the introduced wastewater is filled up to a certain level, it is horizontally moved to the wastewater filtration chamber 30 through the opening 11 of the vertical pipe.
폐수는 폐수여과실(30)로 이동되면 이송관(31)을 통해 폐수여과실(30)의 하부의 폐수는 다시 폐수유입실(20)로 이송시켜 횡망(21)에 의해 재여과 하도록 한다.When the wastewater is moved to the wastewater filtration chamber 30, the wastewater of the lower portion of the wastewater filtration chamber 30 through the transfer pipe 31 is transferred to the wastewater inflow chamber 20 again to be filtered again by the horizontal network 21.
부호 200은 본인의 실용신안등륵 제57895호 여파기이다.Reference numeral 200 denotes a filter for the utility model No. 5,895.
제 3 도는 횡망(21)의 단면을 확대한 것이며, 다공성 판넬(21a)(21b)중간에 여과포(21c)를 끼우고 틀(21d)로써 결합 구성한 것이다.3 is an enlarged cross section of the transverse net 21, and is formed by inserting the filter cloth 21c in the middle of the porous panels 21a and 21b and joining the mold 21d.
제 4 도는 왕겨필터주머니(40)를 확대한 것으로 면 또는 합성수지사로 짜여진 일정규격의 주머니(40)내에 왕겨(40)를 충전하여 구성한 것이다.4 is an enlarged chaff filter pouch 40 and is formed by filling the chaff 40 in a pocket 40 of a predetermined standard woven from cotton or synthetic resin.
제 5 도는 수위감지수단(A)이 설치된 폐수유입실(20)의 상부 일부를 절개한 단면도이며 폐수의 수(C)가 감지수단(A)의 일정수위에 도달하면 신호 또는 폐수유입관의 벨브(미도시)와 연결하여 폐수유입을 중단시키는 작용을 한다.5 is a cross-sectional view of a portion of the upper portion of the wastewater inlet chamber 20 in which the water level detecting means A is installed and a signal or a valve of the wastewater inlet pipe when the number of wastewater C reaches a predetermined level of the sensing means A. In connection with (not shown) to stop the wastewater inflow.
횡망(21)의 하부에는 폐수공지의 폐수유도관(22)(23)을 부착하면 횡망(21) 상부의 폐수는 폐수유입실(20)의 하부에 유도할 수가 있어 더욱 유리하다.When the wastewater induction pipes 22 and 23 of the wastewater announce are attached to the lower portion of the lateral network 21, the wastewater on the upper side of the lateral network 21 can be led to the lower portion of the wastewater inflow chamber 20.
이상과 같이 구성된 본고안은 폐수가 폐수유입관(24)을 통해 유입되면 걸름망(25)과 횡망(21)을 통해 큰 입자가 여과되고 폐수는 계속하여 수직관(23)을 통해 폐수유입실(20)내에 층입된다.In this proposal, the waste water inflow pipe (24), the large particles are filtered through the filter network (25) and the transverse network (21), and the waste water is continuously passed through the vertical pipe (23) wastewater inlet chamber ( 20) layered within.
폐수는 수직격판(10)의 통공(11)에 이르기까지 수위가 높아지면 통공(11)을 통해 폐수는 폐수여과실(30)로 이동하게 된다.When the waste water level rises up to the through hole 11 of the vertical plate 10, the waste water moves to the waste water filtering chamber 30 through the through hole 11.
폐수여과실(30)로 유입 되는 폐수는 왕겨 주머니(40)에의해 여과 되면서 폐수여과실(30)에도 수위가 높아지기 시작한다.The wastewater flowing into the wastewater filtering chamber 30 is filtered by the rice hull bag 40 and the water level starts to increase in the wastewater filtering chamber 30.
일정수위가 되면 폐수여과실의 물은 여과수배출관(33)을 통해 유출되고 계속하여 폐수여과실(30)의 저부의 오염수는 이송관(31)을 통해 폐수유입실(20)로 이송되어 재 여과토록 역류시킨다.When the water level reaches a certain level, the water from the wastewater filtering chamber flows out through the filtered water discharge pipe 33, and the contaminated water at the bottom of the wastewater filtering chamber 30 is transferred to the wastewater inlet chamber 20 through the transfer pipe 31 to be reused. Counterflow to filtration.
이러한 단계를 거치는 동안 폐수유입실(20)에는 각종 유해물질의 밀도가 높은 폐수가 충전되며 이때 폐수배출구(26)의 밸브를 열고 폐수를 유출시킨다.During this step, the wastewater inlet chamber 20 is filled with wastewater having a high density of various harmful substances, and at this time, the valve of the wastewater outlet 26 is opened to drain the wastewater.
이와같이 여과작업을 하는동안 폐수가 대량 여과됨에 따라 폐수여과실(30)의 왕겨필터는 오염물질이 흡착 여과작용을 할수 없게되고 점차 침전물이 쌓이게되며 이로인해 폐수유입실로 통해 일정량 유입되는 폐수는 침진물의 침적량때문에 폐수유입실(20)내에는 폐수의 수위(C)가 높아지게 되어 더이상 여과효과를 얻을 수 없는 상태가 된다.As the wastewater is largely filtered during the filtration operation, the chaff filter of the wastewater filtering chamber 30 is unable to adsorb and filter the contaminants, and the sediment accumulates gradually. Due to the deposition amount of the wastewater inlet chamber 20, the water level (C) of the wastewater becomes high, and the filtration effect is no longer obtained.
이러한 상태가 되면 폐수의 수위가 수위 감지수단에까지 이르게되고 감지수단에 의해 부저 또는 진원을 차단하여 더이상 폐수를 탱크내에 유입되지 못하게 하고 탱크내 왕겨필터를 교체함과 동시에 폐수유입실 바닥도 청소한다.In this state, the level of the wastewater reaches the level detecting means, and the buzzer or the source is blocked by the detecting means so that the wastewater no longer flows into the tank, and the chaff filter in the tank is replaced and the bottom of the wastewater inlet chamber is also cleaned.
폐수여과실(30)의 수위감지수단(B)은 여과수배출관(33)의 입구에 설치된 여과기(200)가 막히게 되면 폐수여과실(30)내의 수위가 올라가게 되고 이때 폐수여과실의 수위감지수단이 작동하게 되므로 배출관 입구의 여과기(200) 를 교체하면 된다.When the water level detecting means (B) of the waste water filtering chamber 30 is blocked by the filter 200 installed at the inlet of the filtered water discharge pipe 33, the water level in the waste water filtering chamber 30 rises, and at this time, the water level detecting means of the waste water filtering chamber This will work, so replace the filter 200 of the discharge pipe inlet.
여과기는 2중효과를 얻기위한 것으로 설치여부는 해당조건에 따라 선택한다.The filter is intended to achieve a double effect and the installation is selected according to the conditions.
수위감지수단(A)(B)은 공지의 전자감응회로를 선택하거나 기계적 부력을 이용할 수도 있다.The water level detecting means (A) (B) may select a known electronic sensitive circuit or use mechanical buoyancy.
횡망과 수직격판은 분해조립이 용이하도록 구성하면 청소작업이 용이할 것이다.The horizontal and vertical plates will be easy to disassemble and assemble to facilitate cleaning.
이와같이 본고안은 폐수가 다단계의 걸름망을 통해 비교적 큰 입자의 공해물질을 걸르고 폐수는 수평이동으로 이동하여 폐수가 거의 정체된 상태에서 왕겨에 의해 흡착 여과되므로 종래 강한 유속에 의한 미여과 공해물질의 발생율이 적으며, 왕겨는 비교적 저가로 제공되어 교체비용이 적게들며 수거된 왕겨필터는 가공하므로 사료나 연료(오일용휠터로 사용한 경우)로 재사용이 가능한 잇점이 있다.In this way, the wastewater filters relatively large particles of pollutants through a multi-stage strainer, and the wastewater moves horizontally, so that the wastewater is adsorbed and filtered by chaff while the wastewater is almost stagnant. The incidence is low, the chaff is relatively inexpensive, the replacement cost is low, and the collected chaff filter is processed, so it can be reused as feed or fuel (if used as an oil filter).
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR92016967U KR950009012Y1 (en) | 1992-09-07 | 1992-09-07 | Filtration apparatus for chaff |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR92016967U KR950009012Y1 (en) | 1992-09-07 | 1992-09-07 | Filtration apparatus for chaff |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR940007241U KR940007241U (en) | 1994-04-12 |
| KR950009012Y1 true KR950009012Y1 (en) | 1995-10-19 |
Family
ID=19339716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR92016967U Expired - Fee Related KR950009012Y1 (en) | 1992-09-07 | 1992-09-07 | Filtration apparatus for chaff |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR950009012Y1 (en) |
-
1992
- 1992-09-07 KR KR92016967U patent/KR950009012Y1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| KR940007241U (en) | 1994-04-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR20090033680A (en) | Stormwater Treatment System and Stormwater Treatment Method | |
| JPS5950367B2 (en) | filtration device | |
| CN206355715U (en) | A kind of anti-blocking filtering pond of multi-filtering | |
| CN211445418U (en) | Food wastewater treatment system | |
| KR950009012Y1 (en) | Filtration apparatus for chaff | |
| KR100488613B1 (en) | Simple waterworks filtration device | |
| RU2347751C2 (en) | Device for purifying sewage water | |
| CN206666257U (en) | A kind of garbage, waste-water processing system | |
| CN211570297U (en) | Industrial wastewater filtering and adsorbing treatment device | |
| JPH1057717A (en) | Waste water treating device | |
| KR200423268Y1 (en) | Oh, wastewater purification device | |
| CN207845307U (en) | A kind of simple easily sewage disposal system | |
| CN208265965U (en) | A kind of water treatment facilities | |
| KR100758508B1 (en) | Oh, wastewater purification device | |
| KR200257125Y1 (en) | Filtration apparatus of water tank | |
| KR20080090292A (en) | Sewage treatment unit | |
| KR200225625Y1 (en) | Filtration apparatus for dirty water | |
| KR200159128Y1 (en) | Counterflow type water filter system | |
| CN215102444U (en) | FA type integration water purifier with aqueous vapor backwash device | |
| KR890004038Y1 (en) | Water and oil separating bath | |
| KR100323852B1 (en) | Clearing system of a foul solution and irresoluble solution | |
| KR0138580B1 (en) | Simultaneous filtration method and filtering device for filtration member | |
| CN222658061U (en) | A quartz sand filter | |
| KR102811724B1 (en) | Apparatus for treating Non-point Contaminants | |
| JPH0728886Y2 (en) | Gravity filter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| UA0108 | Application for utility model registration |
Comment text: Application for Utility Model Registration Patent event code: UA01011R08D Patent event date: 19920907 |
|
| UA0201 | Request for examination |
Patent event date: 19920907 Patent event code: UA02012R01D Comment text: Request for Examination of Application |
|
| UG1501 | Laying open of application | ||
| E902 | Notification of reason for refusal | ||
| UE0902 | Notice of grounds for rejection |
Comment text: Notification of reason for refusal Patent event code: UE09021S01D Patent event date: 19950318 |
|
| AMND | Amendment | ||
| E801 | Decision on dismissal of amendment | ||
| UE0801 | Dismissal of amendment |
Patent event code: UE08012R01D Patent event date: 19950425 Comment text: Decision on Dismissal of Amendment Patent event code: UE08011R01I Patent event date: 19950407 Comment text: Amendment to Specification, etc. |
|
| E601 | Decision to refuse application | ||
| UE0601 | Decision on rejection of utility model registration |
Comment text: Decision to Refuse Application Patent event code: UE06011S01D Patent event date: 19950628 |
|
| J2X1 | Appeal (before the patent court) |
Free format text: APPEAL AGAINST DECISION TO DECLINE REFUSAL |
|
| UJ2001 | Appeal |
Decision date: 19951228 Appeal identifier: 1995201001627 Request date: 19950712 Appeal kind category: Appeal against decision to decline refusal |
|
| UB0901 | Examination by re-examination before a trial |
Patent event code: UB09011R01I Patent event date: 19950712 Comment text: Request for Trial against Decision on Refusal Patent event code: UB09011R02I Patent event date: 19950407 Comment text: Amendment to Description, etc. |
|
| UG1604 | Publication of application |
Patent event code: UG16041S01I Comment text: Decision on Publication of Application Patent event date: 19950925 |
|
| B701 | Decision to grant | ||
| UB0701 | Decision of registration after re-examination before a trial |
Patent event date: 19951228 Patent event code: UB07012S01D Comment text: Decision to Grant Registration Patent event date: 19950916 Patent event code: UB07011S01I Comment text: Transfer of Trial File for Re-examination before a Trial |
|
| REGI | Registration of establishment | ||
| UR0701 | Registration of establishment |
Patent event date: 19960122 Patent event code: UR07011E01D Comment text: Registration of Establishment |
|
| UR1002 | Payment of registration fee |
Start annual number: 1 End annual number: 3 Payment date: 19960122 |
|
| UR1001 | Payment of annual fee |
Payment date: 19981019 Start annual number: 4 End annual number: 4 |
|
| UR1001 | Payment of annual fee |
Payment date: 19991005 Start annual number: 5 End annual number: 5 |
|
| UR1001 | Payment of annual fee |
Payment date: 20001012 Start annual number: 6 End annual number: 6 |
|
| UR1001 | Payment of annual fee |
Payment date: 20010427 Start annual number: 7 End annual number: 7 |
|
| FPAY | Annual fee payment |
Payment date: 20021021 Year of fee payment: 8 |
|
| UR1001 | Payment of annual fee |
Payment date: 20021021 Start annual number: 8 End annual number: 8 |
|
| LAPS | Lapse due to unpaid annual fee | ||
| UC1903 | Unpaid annual fee |