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특허 상세정보

Manhole extension assembly

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) E02D-029/14   
미국특허분류(USC) 404/26 ; 52/21 ; 210/164 ; 404/25
출원번호 US-0891715 (1978-03-30)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 38  인용 특허 : 0

Plastic extender rings for manholes are produced and are seated on the top ring of a manhole by the use of caulking or other adhesive material. The manhole cover, which is elevated by the plastic ring or rings from the old pavement level to a new pavement level, renders the manhole cover less noisy to traffic and seated more evenly. Recessed or notched portions of the rings receive the asphalt to arrest rotational and upward movement of the rings. Composite adapter rings are provided to adapt an off size manhole top rings, to a standard size manhole cove...


A manhole extension assembly comprising in combination with a manhole cover and a manhole having a top ring embedded in pavement of a plastic extender ring member having a bottom surface mounted in concentric relationship on the upper end portion of said top ring of said manhole below pavement level, said ring member having an upper surface which has an annular recessed seat therein for receiving and seating said manhole cover with its upper level at about the level of said pavement, said ring member having circumferentially spaced peripheral outwardly o...

이 특허를 인용한 특허 피인용횟수: 38

  1. Meyers, Theodore W.. Adapter ring for on-site waste treatment or drainage systems. USP2010087770333.
  2. Bowman Harold M. (18867 N. Valley Dr. Fairview Park OH 44126). Adjustable manhole cover support with shield. USP1997055628152.
  3. Prescott Everett J. (P.O. Box 600 Gardiner ME 04345). Adjustable manhole frame and method of construction and installation. USP1985084536103.
  4. Bowman Harold M. (18867 N. Valley Dr. Fairview Park OH 44126). Anchor for utility access hole support insert. USP1997125697729.
  5. Wilson,Stephen K.; Wahl,David. Construction of a foamed polymeric manhole chimney. USP2008077401998.
  6. Bent Bruce C. ; Bent James A.. Drop-over base for traffic delineation device. USP2000026019542.
  7. Rockafellow Gary B. (West Chester PA). Extended valve box and process for securing extension to valve box. USP1984094469115.
  8. Callaghan, David. Gas main gate box safety riser. USP201604D753800.
  9. Michael Gagas. Gate valve box sealing. USP2002096449908.
  10. Gagas, Michael. Gate valve sealing structure. USP2010047703474.
  11. Gagas,Michael. Gate valve sealing structure. USP200708D548309.
  12. Gagas,Michael. Gate valve sealing structure. USP200707D546924.
  13. Gagas,Michael. Gate valve sealing structure. USP200809D577106.
  14. Bent, Bruce C.; Bent, James A.. Handle for traffic delineator. USP2003036536369.
  15. Godfrey, Steven A.. Hydraulically adjustable manhole ring. USP2004026692183.
  16. Rawls-Meehan, Martin B.; Gong, Andrew Z.; Nagelkirk, Kyle Allen; Vera, Leandro. Leg assembly. USP2017049629473.
  17. Rawls-Meehan, Martin B.. Leg assembly for a support frame. USP2016099451833.
  18. Wiedrich Dwight G.. Manhole adjusting extension member. USP1999095956905.
  19. Gagas,Michael. Manhole assembly gate valve sealing structure. USP200812D583067.
  20. Prescott Alain (102 De Gaulle Street Ville de Lorraine CAX J6Z 3Z2). Manhole cover annular support for repaved street. USP1991024995757.
  21. Fier,Raymond L.. Manhole cover riser assembly. USP2007017165911.
  22. Bowman Harold M. (18867 N. Valley Dr. Fairview Park OH 44126). Manhole cover support. USP1981084281944.
  23. Bowman Harold M. (18867 N. Valley Dr. Fairview Park OH 44126). Manhole cover support with topside flange. USP1990114969770.
  24. Bowman Harold M.. Manhole frame assembly. USP1999126007270.
  25. Sinclair David Brent,CAXITX H9X 3A4. Manhole or catch basin assembly. USP2000126161984.
  26. Ditcher, Jack; Ditcher, Eric A.. Manhole riser and cooperating sleeve to provide a waterlock for manhole structures. USP1985094540310.
  27. Wasiuta, Kenneth Michael; Peters, Scott R.; Bertolucci, Gary. Manhole riser extension assembly. USP2015099121157.
  28. Pai Yang-Kuang (2 Floor ; No. 27 ; Lane 305 ; Wo-Lung St. Taipei TWX). Manhole structure. USP1983104408421.
  29. Bowman Harold M. (18867 N. Valley Dr. Fairview Park OH 44126). Method and apparatus for anchoring a utility grate cover. USP1997035611640.
  30. Meyers,Theodore W.. Multi-use adapter ring for stackable riser components for on-site waste systems. USP2008037347644.
  31. P. Dennis McNeely. Nondestructive system for adjusting manhole and catch-basin elevations. USP2002086435764.
  32. Meyers, Theodore W.. Riser pan component for on-site waste systems. USP2009087574831.
  33. Meyers, Theodore W.. Riser pan component for on-site waste systems. USP2011087997031.
  34. Stannard Edward C. (Medley FL). Sealing assembly for manhole covers and adjustment rings therefor. USP1989054828274.
  35. McDermott Holly S. Sewer eco-collar for opening with covers. USP2000046045691.
  36. Bent Bruce C. ; Bent James A.. Stackable vertical panel traffic channelizing device. USP2001106305312.
  37. Feng-I Chiang TW. Superimposed drain cover. USP2002026344137.
  38. Bowman Harold M. (18867 N. Valley Dr. Fairview Park OH 44126). Utility cover extension. USP1989054834574.