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Electric welding pipe joint having a two layer outer member 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • F16L-047/02
출원번호 US-0504866 (1995-07-20)
우선권정보 JP-0169253 (1994-07-21); JP-0063783 (1995-03-23)
발명자 / 주소
  • Akiyama Saburo (Kuwana JPX)
출원인 / 주소
  • Hitachi Metals, Ltd. (Tokyo JPX 03)
인용정보 피인용 횟수 : 23  인용 특허 : 9

초록

An electric welding pipe joint made of a thermoplastic resin and containing a heating resistance wire therein may be produced by forming an inner cylindrical thermoplastic resin member by injection molding, winding a heating resistance wire around the inner cylindrical thermoplastic resin member, an

대표청구항

An electric welding pipe joint comprising (a) a joint body composed of an inner cylindrical member made of a thermoplastic resin, and an outer cylindrical member constituted by at least two thermoplastic resin layers, said thermoplastic resin layers of said outer cylindrical member being injection-m

이 특허에 인용된 특허 (9)

  1. Thalmann Alfred (Uhwiesen CHX), Coupling for tubular plastic pipes with liner of socket and liner of pipes being heat weldable.
  2. Patel Praful J. (Livonia MI), Dual durometer self locking and sealing plugs and method for making same.
  3. Sturm Werner (Hagendorf CHX), Electrically welding plastic sleeve.
  4. Brettell David (South Normanton GB2) Kirk Russell J. (Ashfield GB2) Carter Robin B. (Sheffield GB2) Kenworthy David M. A. (Sheffield GB2), Electro-fusion fittings.
  5. Nakashiba Akio (Osaka JPX) Nishimura Hiroyuki (Osaka JPX) Nagatani Fumio (Kuga JPX) Mito Kazunori (Kuga JPX) Shibabuchi Toshio (Osaka JPX) Nakaoka Mikio (Osaka JPX), Electrofusion joint and hot water supply header using the same.
  6. White Peter (Sheffield GBX) Street Ronald A. (Derby GBX) Greaves Christopher I. (Sheffield GBX) Harrison Gordon (Notts GBX), Method of manufacturing heat-weldable thermoplastic fittings.
  7. Taylor James M. (Mountain View CA) Walter Larry A. (Fremont CA) Barton Peter A. (Fremont CA), Pipe joining system and method.
  8. Sturm Werner (Allerheiligenstrasse 624 Hgendorf CHX), Thermoplastic welding sleeve.
  9. Keller Friedhelm (Donaueschingen DEX) Petry Dirk (Feuerthalen CHX) Hilger Helmut (Beringen CHX), Welding sleeve and method for its manufacture.

이 특허를 인용한 특허 (23)

  1. Ziu Christopher G. (7 Douglas St. Merrimack NH 03054), Closure fitting and flexibility support assembly for double-containment piping systems.
  2. Duncan, Mark; Conley, Jeffrey Ryan; Niu, Hao; Bouey, Samuel Glen, Connection for a thermoplastic pipe, assembly and method.
  3. Lambertus Gerrit Dalmolen NL; Hans Edward Guitoneau NL, Coupling sleeve for high-pressure pipe.
  4. Akiyama Saburo,JPX ; Katayama Yoshio,JPX ; Nishikata Nobuhiro,JPX, Electrically weldable pipe joint and production method thereof.
  5. Theodore Von Arx, Electrofusing of thermoplastic heating elements and elements made thereby.
  6. James M. Rutherford, Fibrous supported polymer encapsulated electrical component.
  7. Ziu Christopher G., Flexibility support assembly for double-containment piping system.
  8. Duncan, Mark; Niu, Hao; Conley, Jeffrey Ryan; Edmondson, Stephen James; Holub, Jiri; Andrenacci, Alfredo; Gujare, Nitin, Flexible reinforced pipe and reinforcement tape.
  9. VonArx, Theodore; Tweedy, Clifford D.; Laken, Keith; Adank, David, Flexible spirally shaped heating element.
  10. Hatakeyama, Kiyoshi, Fusion cutting device.
  11. Grant, Mike A.; Tweedy, Clifford D.; Schlesselman, John W., Internal heating element for pipes and tubes.
  12. Von Arx, Theodore; Laken, Keith; Schlesselman, John W., Method of formable thermoplastic laminate heated element assembly.
  13. Charles M. Eckman ; James S. Roden, Method of making an improved polymeric immersion heating element with skeletal support and optional heat transfer fins.
  14. Von Arx, Theodore; Laken, Keith; Schlesselman, John W.; Papenfuss, Ronald E., Method of manufacturing a molded heating element assembly.
  15. Theodore Von Arx ; Keith Laken, Modular heat exchanger.
  16. Theodore Von Arx ; Keith Laken ; John W. Schlesselman ; Ronald E. Papenfuss, Molded assembly with heating element captured therein.
  17. Von Arx, Theodore; Laken, Keith; Schlesselman, John W.; Tweedy, Clifford D., Packaging having self-contained heater.
  18. Pieter Geert Pfeiffer NL, Pipe fittings.
  19. Richards, Lawrence, Plastics pipe.
  20. Tweedy, Clifford D.; VonArx, Theodore, Small diameter low watt density immersion heating element.
  21. Colombo, Henry; Licata, Bernard Michael, Underground beverage conduit system.
  22. Compton, Ted; Wilson, Douglass Fairfax; Metcalf, Brennan, Welded connections of lined pipe.
  23. Ruffle, Stephen Colin; Petry, Dirk; Schwarz, Bernd, Welding socket.
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