专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2001241580A SLIP-ON PIPE JOINT 失效
公开(公告)号：JP2001241580A
公开(公告)日：2001-09-07
申请号：JP2000274661
申请日：2000-09-11
申请人： NIPPON KOKAN PIPE FITTING MFG
发明人： NISHIDA SHUHEI , OKAZAKI YOSHIRO
IPC分类号： F16L21/08
摘要： PROBLEM TO BE SOLVED: To provide a slip-on pipe joint which can absorb compression allowances for expansions thereof, without causing any plastic deformation in a pipe or in a joint and any separation of anticorrosion protection layer on the exterior of the pipe in case of pipe elongation due to an effect of an earthquake or a heat. SOLUTION: A absorbing member 5 for compression allowances comprising of a compression coil and a coned disc spring or the like is put on between a mouth 7 and a pipe end stopper section 8 in the joint main body 1. When a compression load is imposed on the absorbing member 5 for compression allowances because of linear expansion of the end section of a pipe P due to the effect of the earthquake or the heat, then the absorbing member 5 for compression allowances is compressed and the compression allowances are absorbed. Therefore, the plastic deformation, in which the diameter of the end section of the pipe P is reduced or the diameter of the joint main body 1 is enlarged, can be prevented, and the separation of the anticorrosion protection layer P2 can be avoided.

2. 发明专利

JPH02309091A SYNTHETIC RESIN PIPE JOINT 失效
公开(公告)号：JPH02309091A
公开(公告)日：1990-12-25
申请号：JP12746389
申请日：1989-05-19
申请人： NIPPON KOKAN PIPE FITTING MFG
发明人： NISHIDA SHUHEI , NISHIGATA TORU , HIRABAYASHI HIDEO
IPC分类号： F16L9/12 , B29C65/34 , B29C65/36 , B29C70/06 , B29K105/08 , B29L31/24 , F16L47/02
摘要： PURPOSE:To perform correct connection via heating by providing a heating element mixed with conducting powder and electrodes on the connection faces of joint main bodies in a synthetic resin pipe joint melting and connecting synthetic resin joint main bodies and connecting. CONSTITUTION:In a synthetic resin pipe joint melting and connecting synthetic resin pipes to be connected and joint main bodies 1 and 11, joint main bodies 1 and 11 are made of polyolefin resin, and a heating element 2 made of synthetic resin mixed with conducting powder such as conducting carbon black powder, for example, is buried in the interior opposite to connection faces. Electrodes 6 exposed on the outside of the joint main body 1 are provided at both ends of the heating element 2. The heating element 2 may be made of synthetic resin mixed with short carbon fibers. No distortion or gap is generated near the heating element 2. Correct connection can be performed with no leakage of a fluid in a pipe.

3. 发明专利

JPH0221015A SCREW 失效
公开(公告)号：JPH0221015A
公开(公告)日：1990-01-24
申请号：JP17133488
申请日：1988-07-08
申请人： OSAKA GAS CO LTD , NIPPON KOKAN PIPE FITTING MFG
发明人： MORITA HIROSHI , MATSUMOTO SEIICHI , FUJISAWA SHOZO , NISHIDA SHUHEI , INOUE MASACHIKA , HIRABAYASHI HIDEO
IPC分类号： F16L15/00 , F16B33/06 , F16B39/34
摘要： PURPOSE:To enable electrical insulation by forming a screw having a different diameter at a metallic screw body and adhering blended fabric wove by ceramics fiber and aromatic polyamide on the surface of the screw having the different diameter in an electrical insulation coupling, etc. for a threaded type gus tube. CONSTITUTION:A screw 2a having a different diameter larger than that of a screw 3 having a standard diameter is formed at the inner circumference of the respective ends of a cylindrical coupling body 2, and blended fabric 4a consisting of ceramics fiber 4aa and aromatic polyamide fiber 4ab is adhered to the surface of the screw 2a having the different diameter to form a screw 3 having the standard diameter. Accordingly, an electrical insulating layer 4 can be formed on the surface of the screw so that electrical insulation can be possible.

4. 发明专利

JPH02309090A SYNTHETIC RESIN PIPE JOINT AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH02309090A
公开(公告)日：1990-12-25
申请号：JP12746289
申请日：1989-05-19
申请人： NIPPON KOKAN PIPE FITTING MFG
发明人： NISHIDA SHUHEI , NISHIGATA TORU , HIRABAYASHI HIDEO
IPC分类号： F16L11/12 , B29C65/00 , B29C65/34 , B29C65/36 , B29C70/06 , B29K105/08 , B29L31/24 , F16L47/02
摘要： PURPOSE:To perform correct connection via heating by providing heating elements made of carbon fibers and electrodes on the connection faces of joint main bodies in a synthetic resin pipe joint melting and connecting synthetic resin joint main bodies and pipes. CONSTITUTION:In a synthetic resin joint melting and connecting synthetic resin pipes to be connected and synthetic resin joint main bodies 1 and 11, joint main bodies 1 and 11 are made of polyolefin resin, and heating elements 2 and 12 made of carbon fibers are buried in mating connection faces. Electrodes 6 exposed on the outside of the joint main body 1 are provided at both ends of the heating element 2. The heating element 12 is stuck with carbon fibers on a synthetic resin film, a constitution section is formed on the cylindrical heating element 12 with the film, and the heating element 12 is buried in the joint main body 11. No distortion or gap is generated near the heating elements 2 and 12. Correct connection can be performed with no leakage of a fluid in a pipe.

5. 发明专利

JPH0221014A SCREW 失效
公开(公告)号：JPH0221014A
公开(公告)日：1990-01-24
申请号：JP17133388
申请日：1988-07-08
申请人： OSAKA GAS CO LTD , NIPPON KOKAN PIPE FITTING MFG
发明人： MORITA HIROSHI , MATSUMOTO SEIICHI , FUJISAWA SHOZO , NISHIDA SHUHEI , INOUE MASACHIKA , HIRABAYASHI HIDEO
IPC分类号： F16L15/00 , F16B33/06 , F16B39/34 , G06F9/44
摘要： PURPOSE:To enable electrical insulation by forming a screw having a different diameter at a metallic screw body and adhering blended fabric wove by glass fiber and ceramics fiber on the surface of the screw having the different diameter in an electrical insulation coupling, etc. for a threaded type gus tube. CONSTITUTION:A screw 2a having a different diameter larger than that of a screw 3 having a standard diameter is formed at the inner circumference of the respective ends of a cylindrical coupling body 2, and blended fabric 4a consisting of glass fiber 4aa and ceramics fiber 4ab is adhered to the surface of the screw 2a having the different diameter to form a screw 3 having standard diameter. Accordingly, an electrical insulating layer 4 can be formed on the surface of the screw so that electrical insulation can be possible.

6. 发明专利

JP2002181263A DISSIMILAR PIPE CONNECTING CONVERTIBLE JOINT 失效
公开(公告)号：JP2002181263A
公开(公告)日：2002-06-26
申请号：JP2000375702
申请日：2000-12-11
申请人： NIPPON KOKAN PIPE FITTING MFG
发明人： OKAZAKI YOSHIRO , NISHIDA SHUHEI
IPC分类号： F16L21/08 , F16L21/02 , H02G1/06 , H02G9/06
摘要： PROBLEM TO BE SOLVED: To provide a dissimilar pipe connecting convertible joint capable of connecting a resin pipe to a metallic pipe, to provide a dissimilar pipe connecting convertible joint having expanding and contracting function and dropping-out preventing function, and to provide a dissimilar pipe connecting convertible joint suitably usable for the plumbing work of a protective pipe for wire or communication cable. SOLUTION: A resin-made sleeve connection part 12 and a metallic pipe connection part 13 are formed on a joint body 10. The connection part 12 comprises a tapered first slide surface 21, a cylindrical second slide surface 31 and a working part 40. A slip check ring 60 is fitted onto a resin-made sleeve 10 inserted to the connection part 12. The first slide surface 21 has the function of contracting the diameter of the ring 60 and the function of guiding the ring 60 to the second slide surface 31 side. The working part 40 exhibits the slip check effect.

7. 发明专利

JPH02186123A ANTICORROSION INSULATING JOINT 失效
公开(公告)号：JPH02186123A
公开(公告)日：1990-07-20
申请号：JP508889
申请日：1989-01-12
申请人： OSAKA GAS CO LTD , NIPPON KOKAN PIPE FITTING MFG
发明人： MATSUMOTO SEIICHI , MIYAKE MASAKAZU , NISHIDA SHUHEI , HIRABAYASHI HIDEO
IPC分类号： F16D1/02 , F16D1/04
摘要： PURPOSE:To enable the easy measurement of insulation and resistance after piping without harming anticorrosive performance by forming a corrosion protected layer of a cylinder body made of synthetic resin and providing sealing members to be adhered to outer face covering steel pipes in the state of the cylinder body being slidable between the mounted position covering the residual screw part of the outer face covering steel pipe and the receding position exposing the residual screw part. CONSTITUTION:A corrosion protected layer is formed of a lining layer 25 adhered to the center part of the outer face of a joint main body 20 and a pair of cylinder bodies 26, 27, sealing members 34, 35 are adhered to outer face covering steel pipes 100, 100 so as to maintain sealing performance and isolate the joint main body from outside water to maintain perfect anticorrosion. In measuring the insulation and resistance of an anticorrosion insulating joint A, the female screw part 31 of the cylinder body 27 on one side is separated from the male screw part 29 of the lining layer 25, and the cylinder body 27 is slided to be shifted into a receding position, so that the outer face of the joint main body 20 and the residual screw part 102 of the outer face covering steel pipe 100 are exposed, enabling the measurement of insulation and insulation resistance value.

8. 发明专利

JPH0221013A SCREW 失效
公开(公告)号：JPH0221013A
公开(公告)日：1990-01-24
申请号：JP17133288
申请日：1988-07-08
申请人： OSAKA GAS CO LTD , NIPPON KOKAN PIPE FITTING MFG
发明人： MORITA HIROSHI , MATSUMOTO SEIICHI , FUJISAWA SHOZO , NISHIDA SHUHEI , INOUE MASACHIKA , HIRABAYASHI HIDEO
IPC分类号： F16L15/00 , F16B33/06 , F16B39/34
摘要： PURPOSE:To enable electrical insulation by forming a screw having a different diameter at a metal screw body and adhering blended fabric consisting of glass fiber and aromatic polyamide fiber to the surface of the screw having the different diameter in an electrical insulating coupling, etc. for a gas tube. CONSTITUTION:A screw 2a having a different diameter larger than that of a screw 3 having a standard diameter in the inner circumference of the respective ends of a cylindrical coupling body 2, blended fabric consisting of glass fiber 4aa and aromatic polyamide fiber 4bb is adhered to the surface of the screw 2a having the different diameter so as to form a screw 3 having a standard diameter. Accordingly, an electric insulating layer 4 can be formed on the surface of the screw so that electrical insulation can become possible.

9. 发明专利

JPH01221679A RESISTANCE MEASURING METHOD FOR INSULATION COUPLING 失效
公开(公告)号：JPH01221679A
公开(公告)日：1989-09-05
申请号：JP4799888
申请日：1988-02-29
申请人： OSAKA GAS CO LTD , NIPPON KOKAN PIPE FITTING MFG
发明人： MORITA HIROSHI , MATSUMOTO SEIICHI , NISHIDA SHUHEI , INOUE MASACHIKA , HIRABAYASHI HIDEO
IPC分类号： G01R27/02 , F16L25/02
摘要： PURPOSE:To measure a true resistance of a insulation coupling by providing a insulation layer to two connection ends of the insulation coupling respectively and connecting an electrode of an resistance detecting device with the surfaces of the insulation coupling and a pipe body. CONSTITUTION:One side of the electrode of a resistance measuring device is connected with the surface of the insulation coupling A, the other side of the electrode is connected with one side of the pipe body of the insulation coupling A, for instance the surface of a lead-in pipe 131, then a prescribed voltage is impressed. An actually measured resistance R in such a way, is a true resistance R1 wherein the insulation layer 5 of the insulation coupling A is equipped therewith. That is, the influences of an earth resistance R4 of a branch pipe 130, the earth resistance R3 of a lead-in pipe 131 and the earth resistance R2 of a water pipe 141 contacting with an indoor piping 134, are cut off by the insulation layer 4, these influence are not affect to the actually measured resistance R. In the same way, the actually measured resistance R' which is measured impressing the voltage to the surfaces of the insulation coupling A and the indoor piping 134, is the true resistance R1, wherein the insulation layer 4 of the insulation coupling A is equipped therewith. The influences of the earth resistance R4 of the branch pipe 130, the earth resistance R3 of the lead-in pipe 131 and the earth resistance R2 of the water pipe 141, are cut off by the insulation layer 5, these influences are not affect to the actually measured resistance R'.

10. 发明专利

JPH0221095A CORROSIONPROOF FITTING AND RESISTANCE MEASURING METHOD OF CORROSIONPROOF FITTING 失效
公开(公告)号：JPH0221095A
公开(公告)日：1990-01-24
申请号：JP17133588
申请日：1988-07-08
申请人： OSAKA GAS CO LTD , NIPPON KOKAN PIPE FITTING MFG
发明人： MORITA HIROSHI , MATSUMOTO SEIICHI , NISHIDA SHUHEI , INOUE MASACHIKA , HIRABAYASHI HIDEO
IPC分类号： G01R27/02 , F16L25/02
摘要： PURPOSE:To readily measure resistance by forming through holes on the sleeves made of synthetic resin coat layers extending in the protrusional direction from connecting ports. CONSTITUTION:Thread sections 4 and 5 composed of tapered female threads are formed on the internal surfaces of the connecting ports 2 and 3 provided to both ends of a metallic fitting body 1 respectively. On the external surface of the fitting body 1 are formed synthetic resin coat layers 8 forming themselves into sleeves 9 and 10 extending in the protrusional direction from connecting ports 2 and 3. On the synthetic resin coat layer 8 a through hole 11 extending to the external surface of the fitting body 1 is formed, and in addition through holes 12 and 13 are also formed on the root sections of the sleeve 9 and 10 respectively.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式