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특허 상세정보

Expansion joint for an electrical conduit which is electrically grounded through the expansion joint

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) H02G-015/08   
미국특허분류(USC) 174/84R ; 174/12R ; 174/12BH ; 174/21R
출원번호 US-0215530 (1994-03-22)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 22  인용 특허 : 0
초록

Two electrical conduit sections are attached to a thermal expansion joint which permits relative axial movement between the conduit sections. One of the conduit sections has an end portion which is axially slidably disposed inside of the expansion joint. A ring shaped grounding element is mounted on a screw thread formed in that slidable end portion and is disposed in sliding connection with a cylindrical surface of the joint which surrounds the slidable end portion.

대표
청구항

An electrical conduit structure comprising an expansion joint interconnecting coaxial first and second sections of an electrical conduit to permit relative axial movement between said first and second conduit sections; said expansion joint being affixed to a first end portion of said first conduit section and including an electrically conductive internal surface defining an internal space in which a second end portion of said second conduit section is disposed for axial movement relative to said internal surface; electrical grounding means for establishi...

이 특허를 인용한 특허 피인용횟수: 22

  1. Widman, Jay E.. Apparatus and method for sealing a conduit. USP2005026852922.
  2. DeCesare, Christopher W.; Smith, Lawrence J.. Co-molded sealing ring for use in an electrical fitting, and a raintight compression connector and raintight compression coupler incorporating a co-molded sealing ring. USP20190310240694.
  3. Irwin, James Patrick; Minteer, David William; Axtell, John Thomas; Johnson, Benjamin A.. Composite tubes for a fluid transport system. USP2017069688419.
  4. Smith, Lawrence J.. Concrete exclusion structure. USP2014098839594.
  5. Gaw, Kevin O'Brien; Kelley, Nathan Michael; Axtell, John Thomas; Irwin, James Patrick; Minteer, David William; Velasco, Diego A.. Conductive coupling assembly. USP2015109169029.
  6. Peachey, Daniel. Connector for a pipe and bonding means for use therein. USP2012078215678.
  7. Minteer, David William; Irwin, James Patrick; Johnson, Benjamin A.; Axtell, John Thomas. Fluid transport system for preventing electrical discharge. USP2015109162774.
  8. Magno, Jose Maria D.. Ground expansion joint coupling. USP2004056734360.
  9. Whitney, Ryan M.; Nugent, Keith; Jackson, Jr., Ronald E.; Harless, Richard I.; Kolvek, Stephen J.; White, Arthur H.. Hydrocarbon resource recovery apparatus including RF transmission line and associated methods. USP2018059963958.
  10. Smith, Lawrence J.. Moisture proof telescoping coupler assembly for electric metal tubes. USP2009077563100.
  11. Smith, Lawrence J.. Moisture proof telescoping coupler assembly for electric metal tubes with enhanced grounding and sealing. USP2011027883338.
  12. Smith, Lawrence J.. Moisture proof telescoping coupler assembly for electric metal tubes with enhanced grounding, sealing, and continuity. USP2011088007284.
  13. Pierre Argaut FR; Pierre Gofflo FR. Protective pipe element for sheathed cable for controlling the integrity of the sheath. USP2002056395974.
  14. Pahl, Thomas L.. Quick-connect expansion coupling for electrical metallic tubing. USP2004046715803.
  15. DeCesare, Christopher W.; Smith, Lawrence J.. Raintight compression connector and raintight compression coupler for securing electrical metallic tubing or rigid metallic conduit. USP2016059343883.
  16. DeCesare, Christopher W.; Smith, Lawrence J.. Raintight compression connector and raintight compression coupler for securing electrical metallic tubing or rigid metallic conduit. USP2017109787070.
  17. Smith, Lawrence J.. Raintight fitting connector body. USP201705D787648.
  18. Atkinson, Chris; Barrett, Wesley; Carrington, Ross; Higgs, Kevin; Santos, Mark. Subsea connector. USP2018059960541.
  19. Atherton, John C.. Voltage indicating coupling for metal conduit systems. USP2011118058879.
  20. Kiely, Kenneth M.. Weatherproof compression connecting assembly for securing electrical metal tubing. USP2009107604261.
  21. Kiely, Kenneth M.. Weatherproof compression connecting assembly for securing electrical metal tubing. USP2011077976070.
  22. Kiely,Kenneth M.. Weatherproof compression connecting assembly for securing electrical metal tubing. USP2008067390027.