|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||137/512.1 ; 137/550 ; 137/583 ; 137/360 ; 169/016|
|발명자 / 주소|
|인용정보||피인용 횟수 : 5 인용 특허 : 13|
Addow's FDC, unlike current FDCs, comes with three different styles of outlets, which are grooved, flange, and threaded. This gives the consumers more selections to suit their needs. Current FDCs come only with one style of outlet, which is threaded outlet.
[ What is claimed is:] [1.] A reversible fire department connection comprising two axially opposite ends, each end being removably coupled to a stand pipe attachment of a building fire sprinkler system, one end having one or more passages for accommodating normal in flow or out flow, and an axial passage closeable by a removable cap, a check valve comprising spring loaded pivotal clappers located in the other end, in a first operative position of the fire department connection water is supplied to the fire sprinkler system, and in a second operative posi...