• 검색어에 아래의 연산자를 사용하시면 더 정확한 검색결과를 얻을 수 있습니다.
  • 검색연산자
검색연산자 기능 검색시 예
() 우선순위가 가장 높은 연산자 예1) (나노 (기계 | machine))
공백 두 개의 검색어(식)을 모두 포함하고 있는 문서 검색 예1) (나노 기계)
예2) 나노 장영실
| 두 개의 검색어(식) 중 하나 이상 포함하고 있는 문서 검색 예1) (줄기세포 | 면역)
예2) 줄기세포 | 장영실
! NOT 이후에 있는 검색어가 포함된 문서는 제외 예1) (황금 !백금)
예2) !image
* 검색어의 *란에 0개 이상의 임의의 문자가 포함된 문서 검색 예) semi*
"" 따옴표 내의 구문과 완전히 일치하는 문서만 검색 예) "Transform and Quantization"

특허 상세정보

Height adjustment ring for manhole cover frame

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) E02D-029/14   
미국특허분류(USC) 404/26 ; 52/21
출원번호 US-0251181 (1994-05-31)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 39  인용 특허 : 0

A stackable height adjustment ring for supporting a manhole cover frame upon a concrete manhole shaft liner has a ring body that is formed from plastic resin, e.g., scrap plastic. The ring includes inner and outer radially spaced apart side walls and optionally a top wall. Brace arms which are integral with the walls preferably extend radially between the walls for holding them together. The rings have alignment members, e.g., an inner wall of the ring can have an upwardly facing shoulder upon its upper edge and the outer wall, a downwardly facing should...


A stackable height adjustment ring for supporting a manhole cover frame comprising, a ring body formed from polymeric material, said ring body including concentric inner and outer radially spaced apart upright side walls, the outer side wall defines an outside peripheral edge of the ring and the inner side wall comprises an inside edge of the ring surrounding a central opening, said inner and outer side walls having an annular passage therebetween extending from a top portion of the ring body to a bottom portion of the ring body, at least one vertically ...

이 특허를 인용한 특허 피인용횟수: 39

  1. Meyers, Theodore W.. Adapter ring for on-site waste treatment or drainage systems. USP2010087770333.
  2. Chris Sondrup. Adjustable drain apparatus. USP2002026350373.
  3. Chris Sondrup. Adjustable floor drain apparatus. USP2002056381775.
  4. Sondrup Chris. Adjustable floor drain apparatus. USP2001086269495.
  5. Sondrup, Chris. Adjustable height utility access device. USP2003026524026.
  6. Chris Sondrup. Adjustable manhole apparatus. USP2002106457901.
  7. Sondrup, Chris. Adjustable manhole apparatus. USP2004026695526.
  8. Gumbley, Neil Watson. Adjustable supports for access hatch frames. USP2014108870490.
  9. Sondrup, Chris. Adjustable utility access. USP2005106955499.
  10. Sinclair David Brent,CAX. Adjustment riser. USP2001036196760.
  11. Tabibnia, Ramin. Apparatus and related methods of paving a subsurface. USP2018019879385.
  12. Paul-Gerd Stellmach DE. Apparatus for and method of provisionally covering an inspection shaft of a subterranean duct system. USP2002066402423.
  13. Tabibnia, Ramin. Apparatus for establishing a paver over a subsurface. USP2013068453391.
  14. Boote, Carey J.. Axial spacer for a rotational assembly. USP2010047704009.
  15. Stetson, Michael A.. Channel drain. USP20190310240332.
  16. Wilson,Stephen K.; Wahl,David. Construction of a foamed polymeric manhole chimney. USP2008077401998.
  17. Michael Alan Stetson. Cover for closing surface disposed utility access opening. USP2002056393771.
  18. Stetson, Michael A.. Deck drain cover. USP2011017862729.
  19. Smolnik, John A.. Device for sealing manhole covers to chimneys. USP2003026514008.
  20. Howie, Cameron Gordon. Entryway protective collar. USP20190210214345.
  21. Sondrup, Chris. Height and angle adjustable utility access device and method. USP2003026520713.
  22. Godfrey, Steven A.. Hydraulically adjustable manhole ring. USP2004026692183.
  23. Munro, John. Integrated frame and cover system. USP2015049011035.
  24. Munro, John. Integrated frame and cover system. USP2013118573883.
  25. Goldthorpe Paul,GBX. Liner. USP2001036195944.
  26. Wiedrich Dwight G.. Manhole adjusting extension member. USP1999095956905.
  27. Vetesnik,Jan. Manhole collar for supporting a davit. USP2008097429022.
  28. Kember, Nathan W.. Manhole cover. USP2014128905673.
  29. Sinclair, David Brent. Manhole cover assembly with cams. USP2016049322144.
  30. Kelley, John; Elder, David. Manhole cover device. USP2012028118517.
  31. Sinclair David Brent,CAXITX H9X 3A4. Manhole or catch basin assembly. USP2000126161984.
  32. William A. Schneider ; Robert B. Sergent ; Edgar C. Crosby. Method and apparatus for adjusting fiberglass manholes. USP2002086431789.
  33. Flood, Jr., Robert; Nylund, Jeremy. Method for covering an above ground access opening to a conduit assembly. USP2013028375551.
  34. Meyers,Theodore W.. Multi-use adapter ring for stackable riser components for on-site waste systems. USP2008037347644.
  35. McNeely, P. Dennis. Nondestructive system for adjusting manhole and catch-basin elevations. USP2004016682258.
  36. P. Dennis McNeely. Nondestructive system for adjusting manhole and catch-basin elevations. USP2002086435764.
  37. Meyers, Theodore W.. Riser pan component for on-site waste systems. USP2009087574831.
  38. Meyers, Theodore W.. Riser pan component for on-site waste systems. USP2011087997031.
  39. Corr,Robert F.. Utility cover system. USP2006026994489.