Patent ID: 6932100
Filing Date: 2005-08-23
Classification: B60K,F16K,Y10T

Abstract:
1. A check valve assembly for a fuel tank filler tube comprising: (a) a tubular body with a distal end forming an inlet and including first surfaces thereon adapted for connecting to a fuel filler tube for receiving fuel therefrom during refueling of the tank and second surfaces for connecting to a fuel tank spud; (b) a valve seat formed on an end of said body proximal said second surfaces; (c) said body having a plurality of deflectable portions formed on the exterior thereof adjacent said valve seat and including detent surfaces thereon; (d) a flapper having a plurality of integral trunnions thereon with one of said trunnions having an extension thereon; and, (e) a torsion spring received over said extension with one reaction end thereof contacting said flapper, with said trunnions disposed in pivotal engagement with said deflectable portion of said body and an opposite reaction end of said spring contacting the exterior of said body, wherein said spring biases said flapper in a direction to contact said valve seat.