|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||405/52 ; 405/128 ; 405/258 ; 588/249|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 61 인용 특허 : 0|
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...
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...