KR0125616B1 - Junction method for joint pipes of rigid plastic conduit - Google Patents
Junction method for joint pipes of rigid plastic conduitInfo
- Publication number
- KR0125616B1 KR0125616B1 KR1019940025445A KR19940025445A KR0125616B1 KR 0125616 B1 KR0125616 B1 KR 0125616B1 KR 1019940025445 A KR1019940025445 A KR 1019940025445A KR 19940025445 A KR19940025445 A KR 19940025445A KR 0125616 B1 KR0125616 B1 KR 0125616B1
- Authority
- KR
- South Korea
- Prior art keywords
- pipe
- tube
- synthetic resin
- mold
- joint
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14467—Joining articles or parts of a single article
- B29C45/14491—Injecting material between coaxial articles, e.g. between a core and an outside sleeve for making a roll
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/09—Component parts or accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14467—Joining articles or parts of a single article
- B29C2045/14524—Joining articles or parts of a single article making hollow articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C2045/1486—Details, accessories and auxiliary operations
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Abstract
본 발명은 일정길이로 절단된 상수도관의 일측 외경에 홈을 형성하고, 그 홈이 형성된 관의 일단부를 가열한 다음, 가열된 관의 일단부를 내, 외금형에 삽입하되 관의 내경에 내금형의 일단을 끼우고 외금형에 형성된 개구부를 통하여 관의 일단부가 외금형내에 돌출되도록 한 후, 내, 외금형 사이의 공간부에 합성수지를 사출하여 관의 일단부 외경에 이음관을 일체로 접합, 성형하는 상수도용 합성수지관의 이음관 접합방법에 관한 것으로서, 금형내에 이음관 소재인 합성수지 용융물을 사출하기 전에 이음관이 접속되는 상수도관의 외경에 다수의 홈을 형성하여 그 홈에 합성수지 용융물이 충입되도록 함과 아울러 이음관이 접합되는 상수도관의 외경부를 용융직전의 상태로 될 때까지 가열한 후 그 외경부에 합성수지를 사출하기 때문에 이음관이 상수도관의 일단부에 긴밀하게 접합되게 되는 특징이 있다.The present invention forms a groove on one side outer diameter of the water pipe cut to a certain length, and heating one end of the tube formed with the groove, and then inserted one end of the heated tube into the inner mold, the inner mold of the tube One end of the tube is inserted into the outer mold through the opening formed in the outer mold, and then a synthetic resin is injected into the space between the inner and outer molds to jointly connect the joint pipe to the outer diameter of one end of the tube. The present invention relates to a joint pipe joining method of a synthetic resin pipe for molding water, wherein a plurality of grooves are formed in the outer diameter of a water pipe to which a joint pipe is connected before injection of a synthetic resin melt, which is a joint material in a mold, and the synthetic resin melt is filled in the groove. In addition, the outer pipe of the water pipe to which the pipe is joined is heated until it is ready to be melted, and then the synthetic pipe is injected into the outer pipe. It is characterized by being closely joined to one end of the water pipe.
Description
제1도는 종래기술에 의한 상수도용 합성수지관의 죔식이음관 접합방법이 표현된 단면도.1 is a cross-sectional view showing a method of joining the fastening joint pipe of the synthetic resin pipe for waterworks according to the prior art.
제2도는 제1도의 방법에 의하여 제조된 합성수지관의 이음관의 접합상태가 표현된 단면도.2 is a cross-sectional view showing the bonding state of the joint pipe of the synthetic resin tube manufactured by the method of FIG.
제3도는 본 발명에 의한 상수도용 합성수지관의 이음관 접합방법의 과정이 표현된 도면.3 is a view showing a process of jointing method of joint pipe of synthetic resin pipe for waterworks according to the present invention.
제4도는 본 발명에 사용되는 내금형의 정면도.4 is a front view of an inner mold used in the present invention.
제5도는 본 발명의 내금형의 측면도로서 제5도(a)는 수축되기 전의 내금형의 측면도이고 제5도(b)는 수축된 후의 내금형의 측면도이다.Figure 5 is a side view of the inner mold of the present invention, Figure 5 (a) is a side view of the inner mold before contraction and Figure 5 (b) is a side view of the inner mold after contraction.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
10 : 상수도관 11 : 홈10: water pipe 11: groove
20 : 전기가열장치 30 : 외금형20: electric heating device 30: outer mold
40 : 내금형 42 : 절개부40: inner mold 42: incision
본 발명은 상수도용 합성수지관의 이음관 접합방법에 관한 것으로서, 특히 내, 외금형으로 구성된 금형에 상수도용 합성수지관을 끼운 다음 내, 외금형의 공간부 사이에 합성수지를 사출하여 합성수지관에 이음관을 일체로 형성하는 상수도용 합성수지관의 죔식이음관 접합방법에 관한 것이다.The present invention relates to a method of joining a joint pipe of a synthetic resin pipe for waterworks, in particular, by inserting a synthetic resin pipe for waterworks into a mold formed of an inner and outer mold, and then injecting a synthetic resin between the space parts of the inner and outer molds to a joint pipe to the synthetic resin pipe. The present invention relates to a method of joining a fastening joint of a synthetic resin pipe for water supply to form a single body.
통상적인 상수도관의 접속방법은 상수도관 이음소켓을 별도로 제조하여 그 이음소켓에 상호 접속하고자 하는 상수도관의 일단을 각각 삽입, 연결하는 방식이 사용되고 있으나, 이는 이음소켓의 제조를 위한 원자재가 많이 소요될 뿐만아니라 상수도관의 접속작업을 이중으로 하여야 하는 불편이 있었다. 또한, 합성수지로 제조된 상수도관의 일단에 이음관의 일단을 가열 용착하여 상수도관에 이음관을 접합시킨 다음, 이음관에 연결시키고자 하는 상수도관을 끼워서 상수도관을 접속시키는 방식도 사용되고 있으나, 이는 상수도관의 일단에 이음관의 일단을 접합시키기 위하여 접합면을 면삭, 가열, 접합하는 공정을 필요로 함과 아울러 접합면이 접합된 상태에서 완전히 냉각될 때까지 상수도관과 이음관을 흔들리지 않도록 고정시켜야 하기 때문에 생산능률이 저감되고 제조단가가 상승되며, 때때로 접합면상에 균열이 일어나 접합부위로 부터 누수가 발생되는 문제점이 있었다.In general, the connection method of the water supply pipe is manufactured by separately connecting the water pipe fitting socket and inserting and connecting one end of the water pipe to be connected to the joint socket. However, this requires a large amount of raw materials for the manufacture of the connection socket. In addition, there was an inconvenience in that the connection work of the water pipes had to be doubled. In addition, a method of connecting a water pipe by connecting a water pipe to be connected to the water pipe by heating and welding one end of the pipe to one end of the water pipe made of synthetic resin and then connecting the water pipe to the water pipe is used. This requires the process of roughing, heating, and joining the joint surface to join one end of the joint pipe to one end of the water pipe, and also to prevent the water pipe and the joint pipe from shaking until the joint surface is completely cooled. Since it has to be fixed, the production efficiency is reduced and the manufacturing cost is increased, and sometimes there is a problem that a crack occurs on the joint surface and leaks from the joint.
본 출원인은 상기한 상수도관 접속방식의 문제점을 해결하기 위하여 특허공고번호 제91-5063호 상수도용 폴리에치렌관의 죔식이음관 접합방법 을 출원하여 특허받은 바 있다. 상기의 선출원발명은 제1도 및 제2도에 도시된 바와같이 내금형(3)의 관성형용 둥근막대(3')에 직관(2)을 끼우고 외금형(1)을 닫은 후 내, 외금형 사이의 공간부(5)에 합성수지를 사출하는 방법으로서, 내, 외금형의 공간부(5)에 사출된 합성수지가 이음관(6)으로 성형되면서 직관(2)의 외주면에 접속되어 직관(2)과 이음관(6)이 일체로 접합, 성형되도록 한 것이다.The present applicant has filed a patent for the method of joining the fastening joint pipe of the polyethrene pipe for waterworks Patent No. 91-5063 to solve the problems of the water pipe connection method. In the above-mentioned first invention, as shown in FIG. 1 and FIG. 2, the inner mold and the outer mold (1) are closed by inserting a straight pipe (2) into the round bar (3 ') of the inner mold (3). A method of injecting synthetic resin into the space 5 between the molds, wherein the synthetic resin injected into the space 5 of the inner and outer molds is molded into the joint pipe 6 and connected to the outer circumferential surface of the straight pipe 2 to form a straight pipe ( 2) and the joint pipe 6 is to be integrally bonded and molded.
그러나, 상기의 선출원발명은 상온상태의 주관에 고온의 합성수지 용융액을 사출하여 이음관을 성형, 접합시킴과 아울러 이음관의 접합되는 주관의 외주면이 평탄한 면으로 형성되어 있어 이음관이 주관에 긴밀하게 접합되지 않기 때문에 그 접합부위에서 누수현상이 발생하게 되는 문제점이 있었고, 더욱 사출된 합성수지 용융액이 냉각되어 수축될 때 내금형 표면에 견고하게 밀착됨으로 인하여 이음관이 성형된 후 내금형을 주관 및 이음관으로 부터 분리시키기가 어렵게 되는 문제점이 있었다.However, the above-described invention of the present invention is to form and join the joint pipe by injecting a high temperature synthetic resin melt into the main pipe at room temperature, and the outer circumferential surface of the main pipe to be joined to the joint pipe is formed with a flat surface so that the joint pipe is closely connected to the main pipe. There was a problem in that water leakage occurred at the joint part because it was not bonded, and the injection mold was formed after the joint pipe was formed by tightly adhering to the inner mold surface when the injected resin melt was cooled and contracted. There was a problem that becomes difficult to separate from.
본 발명은 상기한 선출원발명의 제반문제점을 해결하기 위하여 안출된 것으로서, 상수도관 일측 외주면에 홈을 형성하여 이음관의 접합면이 굴곡되게 함과 아울러 홈이 형성된 상수도관의 일단부를 가열한 다음 가열된 상수도관의 일단부에 이음관용 합성수지 용융액을 사출하여 이음관이 상수도관에 긴밀하게 접합, 성형될 수 있도록 한 상수도용 합성수지관의 이음관 접합방법을 제공하는데 그 특징이 있다.The present invention has been made in order to solve the above-mentioned problems of the present invention, by forming a groove on one outer peripheral surface of the water supply pipe to bend the joint surface of the joint pipe and heating one end of the water supply pipe formed with a groove and then heated It is characterized by providing a method of joining a joint pipe of a synthetic resin pipe for water supply, in which a synthetic resin melt for a joint pipe is injected into one end of the water pipe, so that the joint pipe can be closely joined and molded to the water pipe.
본 발명의 다른 목적은, 이음관 성형용 내금형을 수축 가능토록 형성하여, 상수도관에 이음관의 접합, 성형 완료된 후 내금형을 용이하게 분리할 수 있도록 한 상수도용 합성수지관의 이음관 접합방법을 제공하는데 있다.Another object of the present invention is to form a joint for molding the inner mold for shrinkage, the joint of the joint pipe to the water supply pipe, the joint of the joint pipe of the synthetic resin pipe for water supply so that the inner mold can be easily separated after the molding is completed. To provide.
상기의 목적을 달성하기 위한 본 발명은, 일정길이로 절단된 상수도관의 일측 외경에 홈을 형성하고, 그 홈이 형성된 관의 일단부를 가열한 다음, 가열된 일단부를 내, 외금형에 삽입하되 관의 내경에 내금형의 일단를 끼우고 외금형에 형성된 개구부를 통하여 관의 일단부의 외금형내에 돌출되도록 한 후, 내, 외금형 사이의 공간부에 합성수지를 사출하여 관의 일단부 외경에 이음관을 일체로 접합, 성형하는 상수도용 합성수지관의 이음관 접합방법을 특징으로 한다.In order to achieve the above object, the present invention forms a groove in one side outer diameter of the water pipe cut to a certain length, and heating one end of the tube formed with the groove, and then inserts the heated end into the inner mold. Insert one end of the inner mold into the inner diameter of the tube and project the inner end of the tube through the opening formed in the outer mold, and then inject the synthetic resin into the space between the inner and outer molds, thereby joining the pipe to the outer diameter of one end of the tube. It is characterized in that the joining method of the joint pipe of the synthetic resin pipe for water supply to join and form integrally.
또한, 본 발명은 외금형내에 설치된 내금형의 원추형의 수축가능한 형상으로 형성되어 금형내로 사출된 합성수지가 냉각, 수축되는 동안에 내금형도 수축되는 것을 특징으로 한다.In addition, the present invention is characterized in that the inner mold is also formed during the shrinkage of the synthetic resin injected into the mold is formed in a conical shrinkable shape of the inner mold installed in the outer mold.
이하, 첨부도면을 참조하여 본 발명의 실시예를 설명하면 다음과 같다.Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
본 발명은 제3도에 도시된 바와같이 일정한 길이로 절단된 상수도관(10)의 일측 외경에 공지의 수단으로 4~5㎜ 폭의 홈(11)을 2개 이상 형성한다. 그 다음, 홈(11)이 형성된 관(10)의 외경부를 밴드식 전기가열장치(20)의 내부에 삽입하여 관의 표면이 용융직전의 상태가 될 때까지 가열시킨다.In the present invention, as shown in FIG. 3, at least one groove 11 having a width of 4 to 5 mm is formed at one side outer diameter of the water pipe 10 cut to a predetermined length by a known means. Then, the outer diameter portion of the tube 10 in which the groove 11 is formed is inserted into the inside of the band type electric heating device 20 and heated until the surface of the tube is in the state just before melting.
가열된 관(10)의 일단부 내경에 원추형상의 내금형(40)의 일단을 삽입한 후 그 주위를 감싸도록 관의 외경에 대응하는 직경의 개구부(32)를 갖는 외금형(30)을 닫아 관(10)의 일단부 및 내금형(40)과 외금형(30) 사이에 공간부를 형성하고 외금형(30)에 형성된 통로(31)를 통하여 상기 공간부로 이음관 소재용 합성수지를 사출시킨다.Insert one end of the conical inner mold 40 into the inner diameter of one end of the heated tube 10 and close the outer mold 30 having an opening 32 having a diameter corresponding to the outer diameter of the tube so as to surround the inner tube 40. A space portion is formed between one end of the tube 10 and the inner mold 40 and the outer mold 30, and a synthetic resin for a joint pipe material is injected into the space through the passage 31 formed in the outer mold 30.
합성수지가 사출되면 관(10)의 일단부 외경에 형성된 홈(11)에 합성수지 용융액(50)이 충입되면서 용융직전의 상태로 가열된 관(10)의 일단부의 외경 표면에 사출된 합성수지 용융액(50)이 밀착되고 관(10)의 일단부와 합성수지 용융액(50)이 냉각되어 이음관(60)이 관(10)에 일체로 긴밀하게 접합, 성형되게 된다.When the synthetic resin is injected, the synthetic resin melt (50) is injected into the groove (11) formed at the outer diameter of one end of the tube (10) and injected into the surface of the outer diameter of one end of the tube (10) heated just before melting. ) And one end of the pipe 10 and the synthetic resin melt 50 is cooled to the joint pipe 60 is integrally tightly bonded and molded to the pipe (10).
이때, 내금형은 제4도 및 제5도에 도시된 바와같이 관의 일단에 삽입되는 내금형(40)의 일측단(41)과 대향되는 타측단(42)에 부채형상으로 겹쳐지는 다수의 절개부(42')가 형성되어 있어 사출된 합성수지의 용융액(50)이 냉각, 수축될 때 그 절개부(42')가 형성된 내금형(40)의 타측단(42)도 수축하게 된다.At this time, the inner mold is a plurality of overlapping fan-shaped on the other end 42 opposite to one end 41 of the inner mold 40 is inserted into one end of the tube as shown in FIGS. When the cut portion 42 'is formed and the melt 50 of the injected synthetic resin is cooled and contracted, the other end 42 of the inner mold 40 having the cut portion 42' is also contracted.
즉, 제5도(a)에 도시된 서로 부채형상으로 접쳐진 내금형(40)의 타측단(42)은 합성수지 용융액(50)이 냉각되어 수축되는 과정에서 내금형(40)은 제5도(b)에서 도시된 바와 같이 절개부(42')가 더욱 겹쳐지면서 내금형(40)의 타측단(42)이 그 중심을 향하여 수축되어 그 직경이 점차 축소되면서 상기 타측단(42)이 외금형(30)의 일측에 내향되게 돌출된 환형돌출부재(33)과 접촉되면 상기 타측단(42)이 더 이상 수축되지 않게 된다.That is, the other end 42 of the inner mold 40 folded in a fan shape as shown in FIG. 5 (a) is the inner mold 40 in the process in which the synthetic resin melt 50 is cooled and shrunk. As shown in (b), the other end 42 of the inner mold 40 is contracted toward its center while the cutout 42 'is further overlapped, and the diameter thereof is gradually reduced, thereby leaving the other end 42 outside. The other end 42 is no longer contracted when contacted with the annular protruding member 33 protruding inwardly on one side of the mold 30.
사출된 합성수지 용융액(50)이 외금형(30)내에서 완료되어 이음관(60)이 관(10)의 일단부에 접합, 성형되면 외금형(30)을 해체한 다음 수축된 내금형(40)을 추출, 분리시키면 관(10)의 일단부에 이음관(60)이 접합, 성형된 관을 얻게 된다.When the injected synthetic resin melt 50 is completed in the outer mold 30, and the joint pipe 60 is bonded and formed at one end of the tube 10, the outer mold 30 is dismantled and then the contracted inner mold 40 ), The joint tube 60 is joined to one end of the tube 10 to form a tube.
이와같이, 본 발명은 금형내에 이음관 소재인 합성수지 용융물을 사출하기 전에 이음관이 접속되는 상수도관의 외경에 다수의 홈을 형성하여 그 홈에 합성수지 용융물과 충입되도록 함과 아울러 이음관이 접합되는 상수도관의 외경부를 용융직전의 상태로 될 때까지 가열한 후 그 외경부에 합성수지를 사출하기 때문에 이음관이 상수도관의 일단부에 긴밀하게 접합되게 되는 효과가 발휘된다.As described above, the present invention forms a plurality of grooves in the outer diameter of the water supply pipe to which the joint pipe is connected before injecting the synthetic resin melt, which is a joint pipe material, into the mold so as to be filled with the synthetic resin melt in the groove and the joint pipe is joined. Since the outer diameter of the pipe is heated to the state just before melting, the synthetic resin is injected into the outer diameter of the pipe, so that the joint pipe is closely joined to one end of the water supply pipe.
본 발명에서 도시된 바는 없으나 관(10)의 외경에 형성된 홈(11)에 고무링(미도시)을 밀착시키도록 삽입한 후 그 부위를 가열하여 금형에 삽입하고 합성수지를 사출시켜 합성수지가 홈(11) 및 고무링에 밀착되게 함으로써 이음관(60)이 관(10)에 더욱 긴밀하게 접합되도록 할 수 있다.Although not shown in the present invention, the rubber ring (not shown) is inserted into the groove 11 formed in the outer diameter of the tube 10 to be in close contact with the heating part, and then inserted into a mold, and the synthetic resin is injected into the groove. Close contact with the rubber ring (11) and the rubber ring 60 can be more closely bonded to the pipe (10).
또한, 본 발명은 수축 가능한 내금형을 사용하기 때문에 이음관이 접합 성형된 관으로부터 내금형을 극히 용이하게 분리시킬 수 있는 잇점도 있게 된다.In addition, since the present invention uses a shrinkable inner mold, there is an advantage that the inner tube can be separated very easily from the joint-molded tube.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019940025445A KR0125616B1 (en) | 1994-10-05 | 1994-10-05 | Junction method for joint pipes of rigid plastic conduit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019940025445A KR0125616B1 (en) | 1994-10-05 | 1994-10-05 | Junction method for joint pipes of rigid plastic conduit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR960014741A KR960014741A (en) | 1996-05-22 |
| KR0125616B1 true KR0125616B1 (en) | 1998-11-16 |
Family
ID=19394447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019940025445A Expired - Fee Related KR0125616B1 (en) | 1994-10-05 | 1994-10-05 | Junction method for joint pipes of rigid plastic conduit |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR0125616B1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100620561B1 (en) * | 2006-03-09 | 2006-09-06 | 미래화학 주식회사 | Fixing structure of water pipe, connecting head and manufacturing method thereof |
| KR101138441B1 (en) * | 2011-04-12 | 2012-04-26 | 와토스코리아 주식회사 | Connecting hose and method thereof |
-
1994
- 1994-10-05 KR KR1019940025445A patent/KR0125616B1/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100620561B1 (en) * | 2006-03-09 | 2006-09-06 | 미래화학 주식회사 | Fixing structure of water pipe, connecting head and manufacturing method thereof |
| KR101138441B1 (en) * | 2011-04-12 | 2012-04-26 | 와토스코리아 주식회사 | Connecting hose and method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| KR960014741A (en) | 1996-05-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100396735B1 (en) | Molded hose joint assembly | |
| KR0186034B1 (en) | How to weld together pipes made of thermoplastic | |
| US6041824A (en) | Clean air ducts and methods for the manufacture thereof | |
| FI85830B (en) | FOERFARANDE OCH ANORDNING FOER TILLVERKNING AV KOMBINATIONSPRODUKT. | |
| US5682924A (en) | Clean air ducts and methods for the manufacture thereof | |
| EP0271598B1 (en) | Method for molding corrugated pipe sleeve | |
| EP0052017B1 (en) | Channelled plastic pipe with channel ends closed and method of producing the same | |
| KR100438990B1 (en) | Electric Fusion Splicer | |
| KR0125616B1 (en) | Junction method for joint pipes of rigid plastic conduit | |
| JPS6131351B2 (en) | ||
| KR200203747Y1 (en) | a | |
| JP4145131B2 (en) | Multi-layer injection molding method | |
| KR200234282Y1 (en) | a | |
| KR100546995B1 (en) | Plastic pipe with connector | |
| JP3571839B2 (en) | Electric fusion joint | |
| KR200275923Y1 (en) | synthetic resins pipe formed heat welding member | |
| KR101627660B1 (en) | method of cutoffwater pipe socket and cutoffwater pipe socket by the manufacturing method | |
| PL185671B1 (en) | Method of and mould for moulding a sealing assembly comprising a retaining ring and a sealing ring | |
| JPH0726637Y2 (en) | Welding joint | |
| JP2721465B2 (en) | Electric fusion plastic pipe fittings | |
| JPH11315987A (en) | Manufacturing method of preformed body and electrofusion joint | |
| JPH0727282A (en) | Electro-fusion joint and its forming method | |
| JP2880040B2 (en) | Plastic pipe fittings | |
| KR100343527B1 (en) | Fusion coupler | |
| KR910005063B1 (en) | Method connecting pipes of tieing up types |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| PA0109 | Patent application |
St.27 status event code: A-0-1-A10-A12-nap-PA0109 |
|
| PA0201 | Request for examination |
St.27 status event code: A-1-2-D10-D11-exm-PA0201 |
|
| R17-X000 | Change to representative recorded |
St.27 status event code: A-3-3-R10-R17-oth-X000 |
|
| PG1501 | Laying open of application |
St.27 status event code: A-1-1-Q10-Q12-nap-PG1501 |
|
| E902 | Notification of reason for refusal | ||
| PE0902 | Notice of grounds for rejection |
St.27 status event code: A-1-2-D10-D21-exm-PE0902 |
|
| P11-X000 | Amendment of application requested |
St.27 status event code: A-2-2-P10-P11-nap-X000 |
|
| P13-X000 | Application amended |
St.27 status event code: A-2-2-P10-P13-nap-X000 |
|
| E701 | Decision to grant or registration of patent right | ||
| PE0701 | Decision of registration |
St.27 status event code: A-1-2-D10-D22-exm-PE0701 |
|
| GRNT | Written decision to grant | ||
| PR0701 | Registration of establishment |
St.27 status event code: A-2-4-F10-F11-exm-PR0701 |
|
| PR1002 | Payment of registration fee |
St.27 status event code: A-2-2-U10-U11-oth-PR1002 Fee payment year number: 1 |
|
| PG1601 | Publication of registration |
St.27 status event code: A-4-4-Q10-Q13-nap-PG1601 |
|
| PR1001 | Payment of annual fee |
St.27 status event code: A-4-4-U10-U11-oth-PR1001 Fee payment year number: 4 |
|
| PR1001 | Payment of annual fee |
St.27 status event code: A-4-4-U10-U11-oth-PR1001 Fee payment year number: 5 |
|
| PR1001 | Payment of annual fee |
St.27 status event code: A-4-4-U10-U11-oth-PR1001 Fee payment year number: 6 |
|
| PR1001 | Payment of annual fee |
St.27 status event code: A-4-4-U10-U11-oth-PR1001 Fee payment year number: 7 |
|
| PN2301 | Change of applicant |
St.27 status event code: A-5-5-R10-R13-asn-PN2301 St.27 status event code: A-5-5-R10-R11-asn-PN2301 |
|
| PR1001 | Payment of annual fee |
St.27 status event code: A-4-4-U10-U11-oth-PR1001 Fee payment year number: 9 |
|
| PR1001 | Payment of annual fee |
St.27 status event code: A-4-4-U10-U11-oth-PR1001 Fee payment year number: 10 |
|
| PN2301 | Change of applicant |
St.27 status event code: A-5-5-R10-R13-asn-PN2301 St.27 status event code: A-5-5-R10-R11-asn-PN2301 |
|
| PR1001 | Payment of annual fee |
St.27 status event code: A-4-4-U10-U11-oth-PR1001 Fee payment year number: 11 |
|
| R18-X000 | Changes to party contact information recorded |
St.27 status event code: A-5-5-R10-R18-oth-X000 |
|
| PR1001 | Payment of annual fee |
St.27 status event code: A-4-4-U10-U11-oth-PR1001 Fee payment year number: 12 |
|
| FPAY | Annual fee payment |
Payment date: 20091008 Year of fee payment: 13 |
|
| PR1001 | Payment of annual fee |
St.27 status event code: A-4-4-U10-U11-oth-PR1001 Fee payment year number: 13 |
|
| R18-X000 | Changes to party contact information recorded |
St.27 status event code: A-5-5-R10-R18-oth-X000 |
|
| LAPS | Lapse due to unpaid annual fee | ||
| PC1903 | Unpaid annual fee |
St.27 status event code: A-4-4-U10-U13-oth-PC1903 Not in force date: 20101009 Payment event data comment text: Termination Category : DEFAULT_OF_REGISTRATION_FEE |
|
| PN2301 | Change of applicant |
St.27 status event code: A-5-5-R10-R13-asn-PN2301 St.27 status event code: A-5-5-R10-R11-asn-PN2301 |
|
| PC1903 | Unpaid annual fee |
St.27 status event code: N-4-6-H10-H13-oth-PC1903 Ip right cessation event data comment text: Termination Category : DEFAULT_OF_REGISTRATION_FEE Not in force date: 20101009 |
|
| PN2301 | Change of applicant |
St.27 status event code: A-5-5-R10-R13-asn-PN2301 St.27 status event code: A-5-5-R10-R11-asn-PN2301 |
|
| R18-X000 | Changes to party contact information recorded |
St.27 status event code: A-5-5-R10-R18-oth-X000 |
|
| P22-X000 | Classification modified |
St.27 status event code: A-4-4-P10-P22-nap-X000 |