Improved method of controlling vapor venting in a fuel tank and valve therefor

摘要

A float type vapor vent valve for a vehicle fuel tank. A relatively thin flexible valve member (98) has one end anchored to the float (78) but permitted relative movement with respect to the float in a direction parallel to that of float movement, with the opposite end of the flexible valve member anchored to the float in spaced arrangement from the one end, but permitted limited movement with respect to the float in a direction normal to that of float movement. The flexible arm is bowed in one version and has a flat configuration in another version.