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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 ; 405/128 ; 405/258 ; 588/249
출원번호 US-0857361 (1992-03-25)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 61  인용 특허 : 0
초록

An environmentally safe underground piping system for liquid fuels and chemicals which interconnects an underground liquid storage tank to one or more above ground liquid dispensing units, that provides a complete secondary containment system for the entire primary liquid supply piping system. The piping systems employs one tank access chamber interconnected to one or more dispenser access chambers by a double walled pipe. The double wall pipe provides an interstitial space for gravity flow of any leaking liquids, from any point in the primary liquid sup...

대표
청구항

A secondarily contained underground piping system which connects the dispensing pump of an underground storage tank to an above ground dispensing unit, comprising: a) a originating chamber installed around the dispensing pump located at the beginning of a piping line providing a means of surface access, secondary containment, leak collection and having at least one opening in one of its side walls for pipeline access; b) a terminating chamber installed under an above ground dispensing unit located at the end of a piping line, providing a means of surface...

이 특허를 인용한 특허 피인용횟수: 61

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