Patent ID: 8443851
Filing Date: 2013-05-21
Classification: B60K

Abstract:
1. An overfill prevention device for preventing overflow of a fluid storage tank which is fillable via a nozzle having a fill-limiting sensor at one end thereof, the fluid storage tank having a tank body with a fill opening formed therethrough, and the tank body having a predetermined full level, the overfill prevention device comprising: a filler cup member configured to fit within the fill opening of the tank body, the filler cup member having opposing upper and lower cup regions; a first seal member intermediate the upper and lower cup regions and adapted for receiving and sealing to the nozzle; a breather piece integrated with the filler cup member and defining a vapor path with first and second openings, wherein the first opening is coupled to the lower cup region, and the second opening is located generally at the predetermined full level; and wherein the first opening of the breather piece is vertically lower than the second opening relative to the tank body.