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특허 상세정보

Environmentally safe underground piping system

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F16L-001/00   
미국특허분류(USC) 405/52 ; 405/154 ; 588/249
출원번호 US-0838615 (1992-02-19)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 38  인용 특허 : 0
초록

An environmentally safe underground piping system which employes a inner flexible fluid supply piping system contained within an outer non-flexible containment piping system which interconnects a series of surface access chambers. Both the flexible supply and and non-flexible containment piping systems are interconnected by a series of directional fittings and couplings. The containment system may be installed, integrity tested, inspected and backfilled, prior to installation of the supply piping system which allows for a faster and more economical insta...

대표
청구항

A secondarily contained underground piping system which connects the dispensing pump of an underground storage tank to an above ground terminating dispensing unit comprising: a) an originating chamber installed around the dispensing pump located at the beginniing of a pipe line, providing a means of surface access, secondary containment and leak collection; b) a junction chamber installed under an above ground dispensing unit located within the piping line providing a means of surface access, secondary containment and leak collection; c) a terminating ch...

이 특허를 인용한 특허 피인용횟수: 38

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