Patent ID: 8186393

Claim:
A fluid coupler arrangement for connecting a nurse vehicle fluid transfer conduit to a sprayer vehicle intake fluid conduit so as to form a continuous flow path through the fluid coupler arrangement, said fluid coupler arrangement comprising: a first coupler section including an insert body defining a first flow passageway there through and a second coupler section including a receptacle body defining a second flow passageway there through, with the receptacle body also defining a receptacle at one end for receiving an end region of said insert body; said first coupler section comprising a first poppet valve including a first valve seat formed fixed at one end of said first flow passageway and including a first valve head having a periphery biased into sealing engagement with said first valve seat; said second coupler section comprising a second poppet valve including a second valve seat formed fixed at one end of said second flow passageway and a second valve head having a periphery biased into sealing engagement with said second valve seat; said receptacle of said receptacle body having an axially extending annular end wall including an inner surface joined to said one end of said second flow passageway by a radially extending, annular surface; said end region of said insert body defining a seal groove bridged by said inner surface when said end region is located within said receptacle against said radially extending annular surface; and an inflatable seal being located in said seal groove and acting, when inflated, for locking said receptacle body and said insert body together while preventing leakage, wherein each of said first and second valve seats includes a cylindrical section joined to a frusto-conical section; and the peripheries of said first and second valve heads being respectively shaped for mating with said cylindrical and frusto-conical sections of said first and second valve seats.