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특허 상세정보

Adjustable manhole frame and method of construction and installation

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) E02D-029/14    B29C-001/12   
미국특허분류(USC) 404/26 ; 52/21 ; 249/11 ; 249/160
출원번호 US-0523743 (1983-08-16)
발명자 / 주소
인용정보 피인용 횟수 : 17  인용 특허 : 3

An adjustable cast iron or ductile iron manhole frame and method of construction utilizing a formed concrete base or a base of brick and cement mortar that supports both the frame and the pavement. The height and angle of the frame are determined by the method of construction which sets the height and angle of the formed concrete base. The frame is further adapted to receive and hold the manhole cover, and the frame includes an arched section to hold it securely to the concrete base or to filler material when in a raised position.


A frame disposable in surmounting relation to a manhole cone to define a manhole opening at pavement level, the opening being closable by a manhole cover, the frame further being capable of adjustment relative to the cone and to the pavement level, comprising: a body member having a centrally disposed opening defined at least in part by an inner skirt portion which extends substantially about the periphery of the opening, the body member having a planar upper surface normally disposed horizontally when installed relative to the cone, that portion of the ...

이 특허를 인용한 특허 피인용횟수: 17

  1. Gaspar, Chris. Adjustable support apparatus for a utility access cover. USP2014108858114.
  2. Wallace,Timothy Harold; Williams,Barry Clifton. Assembly and method of forming a trench of a predetermined shape. USP2007027172368.
  3. Picollo August J. (628 Beebe Rd. Central Point OR 97501) Guillemette Alfred N. (560 13th St. Gold Hill OR 97525). Disposable curb inlet drain form. USP1990094957268.
  4. Beaudoin, Pierre-Laurent. Eccentric frame for an inlet of a catch basin or manhole. USP2015109157213.
  5. Beaudoin, Pierre-Laurent. Frame. USP201402D699820.
  6. Beaudoin, Pierre-Laurent. Frame. USP201402D699822.
  7. Beaudoin, Pierre-Laurent. Frame. USP201502D722679.
  8. Beaudoin, Pierre-Laurent. Frame for an inlet of a catch basin or manhole. USP2015099127447.
  9. Beaudoin, Pierre-Laurent. Grate. USP201507D734838.
  10. Beaudoin, Pierre-Laurent. Grate. USP201502D722678.
  11. Godfrey, Steven A.. Hydraulically adjustable manhole ring. USP2004026692183.
  12. Beaudoin, Pierre-Laurent. Locking mechanism for a cover. USP2016039290968.
  13. Flood, Jr., Robert; Nylund, Jeremy. Method for covering an above ground access opening to a conduit assembly. USP2013028375551.
  14. Wallace, Timothy Harold; Williams, Barry Clifton. Method of fabricating a longitudinal frame member of a trench-forming assembly. USP2010047703502.
  15. Laurence, Peter J.. Methods and apparatus for stabilization of surfaces. USP2016119499716.
  16. Wallace, Timothy Harold; Williams, Barry Clifton. Mounting bracket assembly for connecting frame members of a trench-forming assembly and associated method of fabricating frame members. USP2005086926245.
  17. Picollo August J. (628 Beebe Rd. Central Point OR 97501). Reusable concrete curb inlet form. USP1987014637585.