|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||405/52 ; 405/154 ; 588/249|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 38 인용 특허 : 0|
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...
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...