Abstract: The fuel filling system includes double pipe fuel delivery and tank venting plumbing. Both fuel delivery pipe and tank venting pipe are flexible and communicate with the gas tank through normally closed check valves. An inlet housing defines a vent cut-off chamber which communicates with the tank venting pipe, and also includes an annular nozzle embracing seal for isolating the end of the gas pump nozzle from the vent cut-off chamber. The gas tank is thus fully sealed by the check valves during driving, so that fuel will not spill from the tank should the filling system plumbing become ruptured or should the vehicle become overturned as a result of a collision. Fuel is introduced into the tank under positive pressure provided by the filling station fuel pump. Under pumping pressure, the check valves open to permit the inflow of fuel and the outflow of air displaced from within the tank.

Abstract: A swivelable quick connect assembly for use with tubular conduits is disclosed as comprising a housing having an axial bore for receiving one end of the conduit, an elastomeric ring-like seal is disposed in the bore for providing a fluid tight seal between confronting portions of the conduit and the housing, an annular bushing is disposed in the bore for positioning the seal and for guiding the one end of the conduit into nesting relationship with the bore, and a retainer is detachably secured to the housing and is cooperable with an annular projection on the conduit for securing the conduit in its operative position within the bore, the retainer having resilient deformable portions which are adapted to snap over the locking wall upon insertion of the conduit into the housing bore.

Abstract: A drainport closure device particularly suitable for a motor vehicle radiator drain valve. The device is composed of a housing and plug member. The housing communicates with a fluid containing vessel at one end and the other end receives the plug. The plug has one or more flexing arms which may be compressed to permit the plug to be moved between two positions within the housing. In the first position an "O"-ring seal carried by the plug prevents fluid drainage whereas when the plug is repositioned to a second position, fluid drainage occurs.