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특허 상세정보

Manhole riser having integral flexible waterlock for manhole covers and having a water tight seal for sealed manhole cov

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) E21D-029/14   
미국특허분류(USC) 404/26 ; 404/25 ; 52/20
출원번호 US-0779845 (1985-09-25)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 27  인용 특허 : 1
초록

A hollow, flexible, bendable, cylindrical-shaped, hat-like sleeve is water-tightly joined with the upper end of the riser section of a manhole structure. The free end of the sleeve is trimmed so that its upper edge fits beneath the shoulder of the frame supporting the manhole cover to prevent subsurface water from entering into the manhole interior through the regions between the manhole cover supporting frame and the top of the riser section, which is usually fitted with adjustment rings to bring the manhole cover frame up to grade. The sleeve is easily...

대표
청구항

Apparatus for providing a water-tight seal in the region above the riser section of a manhole structure comprising: resilient, compressible, bendable sleeve means having an outwardly extending integral projection cast into the top portion of said riser section, the portion of the sleeve means adjacent said projection extending into and being adjacent to the interior surface of the riser section adjacent the top end thereof, the outer diameter of the riser section at the top end being greater than the outer diameter of the projection; a manhole cover supp...

이 특허를 인용한 특허 피인용횟수: 27

  1. Youngs Andrew (Granger IN). Combined one-piece tank sump with integral dust cover. USP199709D383763.
  2. Youngs Andrew. Double booted flexible entry boot. USP2000076086117.
  3. Youngs Andrew. Double booted flexible entry boot. USP2000116145891.
  4. Howie, Cameron Gordon. Entryway protective collar. USP20190210214345.
  5. Brockway Robert D. ; Richardson Lester F.. Expandable band and locking mechanism. USP2000116152455.
  6. Brockway, Robert D.. Expandable band and locking mechanism. USP2005036866301.
  7. Brockway, Robert D.. Expandable band and locking mechanism. USP2005106953194.
  8. Nordstrom Daniel P. ; Youngs Andrew. Flexible entry boot. USP2001016173997.
  9. Nordstrom, Daniel P.; Youngs, Andrew. Flexible entry boot. USP2003096612620.
  10. Youngs Andrew. Flexible entry boot. USP1999105961155.
  11. Youngs Andrew. Flexible entry boot. USP1998095810400.
  12. Miller, Michael R.; Skinner, James W.. Flexible waterstop ring. USP2004016676136.
  13. Versaw ; Jr. Robert H. ; Mosier James W. ; Nordstrom Daniel P.. Integrally formed tank sump with lid. USP200008D429735.
  14. Versaw ; Jr. Robert H. ; Mosier James W. ; Nordstrom Daniel P.. Integrally formed tank sump with water resistant lid assembly. USP2001026189717.
  15. Bigham, Vern. Lifting apparatus for a manhole cover. USP2003026520482.
  16. Hinkle Vernon W. ; Tensen John D.. Manhole collar assembly. USP2000126161985.
  17. Hinkle Vernon W.. Manhole collar assembly and method for producing same. USP1999085934820.
  18. Bigham Vern. Manhole cover engaging tools. USP2001016176469.
  19. Banks,Robert S.. Manhole water seal-cap/diverter. USP2006016986226.
  20. Tran-Quoc-Nam John,CAX. Manhole with extension wings. USP2001106309139.
  21. Nordstrom Daniel P.. Matingly engaged flexible entry boot. USP1999105967567.
  22. Flood, Jr., Robert; Nylund, Jeremy. Method for covering an above ground access opening to a conduit assembly. USP2013028375551.
  23. Youngs Andrew. One-piece tank sump with integral dust cover. USP1999115988944.
  24. Youngs Andrew. One-piece tank sump with integral dust cover. USP1998115833392.
  25. Bussio, Vincent A.. System and method for making polymer concrete. USP2017029567760.
  26. Bigham, Vern. Universal manhole cover engaging tool. USP2004016676111.
  27. Nooren Franciscus Petrus,NLX. Use of a preparation for insulation/sealing and coating purposes and method for sealing manhole covers. USP1999045898044.