Patent ID: 6209569
Filing Date: 2001-04-03
Classification: B67D,F17D,Y10T

Abstract:
A safety shut-off valve assembly for a fuel dispenser unit used to convey fuel from a bulk storage container through a primary pipeline while allowing periodic access to the primary pipeline and preventing an accumulation of fuel vapors in the dispenser unit, said assembly comprising:(a) an open-top fuel flow chamber for permanent mounting at a base of the fuel dispenser unit, said open-top fuel flow chamber having an opening to receive an outlet terminus of the primary pipeline as ingress for fuel;(b) a removable cover plate positioned on the open-top fuel flow chamber for closing off the fuel chamber;(c) a break-away tube member extending from the removable cover plate for forming an egress for fuel in the fuel flow chamber to pass to a dispensing pipeline in the dispenser unit; and(d) a bonnet valve mounted in the open-top fuel flow chamber for allowing the free flow of fuel to pass from the primary pipeline to the dispensing pipeline and for shutting off the flow of fuel to the dispensing pipeline upon activation.