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특허 상세정보

Composite article

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) E02D-029/14   
미국특허분류(USC) 404/25 ; 428/117 ; 428/178 ; 52/20
출원번호 US-0673803 (1984-11-21)
우선권정보 GB-0031632 (1983-11-26); GB-0010982 (1984-04-30)
발명자 / 주소
인용정보 피인용 횟수 : 22  인용 특허 : 1
초록

A composite cover 10 for a manhole or other opening comprises an upper 12 and lower 14 skin of glass reinforced plastics material. The upper and lower skins are bonded to one another about the edges 18 and spaced apart from one another therebetween to define a space 16 containing reinforcing walls 20 extending between the upper 12 and lower 14 skins. The reinforcing walls 20 are preferably formed from a corrugated sheet of glass fibre reinforced plastics material. The cover of the invention is as strong as conventional cast iron covers but is lighter and...

대표
청구항

A composite cover having high loadbearing capacity, comprising an upper and a lower skin of fiber reinforced thermosetting resin material, the upper and lower skins being integral with one another around the edges of the cover and spaced apart from one another therebetween, the space so formed containing reinforcing walls of fiber reinforced material extending between the upper and lower skins, the reinforcing walls being integral with the upper and lower skins where they contact the same, the voids between the reinforcing walls being filled with infills...

이 특허를 인용한 특허 피인용횟수: 22

  1. Brugos, Ricardo. Adjustable manhole cover apparatus. USP2009057537413.
  2. Nelson, David J.; Silverstein, Barry D.; Fowlkes, William Y.. Closed loop three color alignment for digital projection. USP2004106808270.
  3. Donnellan, Nuala; Newton, John Reginald. Composite material structure and method for making same. USP2014058726614.
  4. Blake,Raymond A.; Blake,Michael P.. Construction protective covering. USP2006026996860.
  5. Shinehouse,Scott E.; Shinehouse,J. William. Cover system for septic tank. USP2007067225587.
  6. Spiess Hansruedi (Delemont CHX) Galvanetto Francois (Alle CHX). Covering for a ground opening. USP1989104873795.
  7. Trangsrud,Julian P.; Erickson,David E.. Electric handhole/pullbox access cover. USP2008047361834.
  8. Fecko, Joseph V.; Packer, Paul L.. Fiberglass railcar roof. USP2004076761840.
  9. Buzza David W. (Mobile AL) Schoen Frederick W. (Fairhope AL) Lovelace Harold P. (Saraland AL). Fiberglass sandwich panel. USP1997055625999.
  10. Balogh, John E. Handhole and manhole anti-theft insert. USP2016049303381.
  11. Glab Charles D. ; Lattner Michael D. ; Koehler Adam J.. Manhole cover. USP200008D428999.
  12. Glab Charles D. ; Lattner Michael D. ; Koehler Adam J.. Manhole cover. USP200007D428658.
  13. Reynolds, Dean W.; Johnson, Jeremy I.. Manhole cover with insert. USP2014058727659.
  14. Lorenz, Thomas. Production-optimized manhole cover. USP2013068454263.
  15. Argandona Toby (21221 Running Branch Rd. Diamond Bar CA 91765). Spill containment device. USP1989064842443.
  16. Jurich, Mark J.; Swartz, Rickey G.; Reed, Jon R.; Freeman, Eric C.; Ott, Wolfgang; Appelblom, Paul H.; Jurich, Paul A.. Utilities access closure. USP2011118061928.
  17. Jurich, Mark J.; Swartz, Rickey G.; Reed, Jon R.; Freeman, Eric C.; Ott, Wolfgang; Appelblom, Paul H.; Jurich, Paul A.. Utilities access closure. USP2010077748926.
  18. Jurich, Mark J.; Swartz, Rickey G.; Reed, Jon R.; Freeman, Eric C.; Ott, Wolfgang; Appelblom, Paul H.; Jurich, Paul A.. Utilities access closure. USP2016039284711.
  19. Jurich, Mark J.; Swartz, Rickey G.; Reed, Jon R.; Freeman, Eric C.; Ott, Wolfgang; Appelblom, Paul H.; Jurich, Paul A.. Utilities access closure. USP2014098827589.
  20. Jurich,Mark J.; Swartz,Rickey G.; Reed,Jon R.; Freeman,Eric C.; Ott,Wolfgang; Appelblom,Paul H.; Jurich,Paul A.. Utilities access closure. USP2007017163352.
  21. Miller, Richard L.; Miller, Stephen L.. Utilities access closure. USP2013068469628.
  22. Miller, Richard L.; Miller, Stephen L.. Utilities access closure. USP2014098821062.