Patent ID: 6848463
Filing Date: 2005-02-01
Classification: F16K,Y10T

Abstract:
1. A vapor vent valve for a fuel tank, comprising: (a) a vapor outlet connecting an interior of the fuel tank with an exterior of the fuel tank; (b) a fill cup having an opening at one end and a sidewall extending to the open end; (c) a shell defining an interior space, disposed in part in the fill cup and having a sidewall with an opening therethrough and an upper edge; (d) a flow passage defined between the fill cup sidewall and the shell sidewall communicating with the opening of the fill cup and the opening through the sidewall to permit fluid which flows into the opening of the fill cup to enter the interior space through the opening in the sidewall of the shell; (e) a float slidably received in the interior space and responsive to the level of liquid fuel in the interior space; (f) a closure pivotally carried by the shell and movable to a closed position to prevent fluid flow through the vapor outlet and movable to an open position spaced from the closed position allowing fuel vapor to exit the fuel tank through the vapor outlet; and (g) the closure comprising a carrier plate and an elastomeric layer attached to the carrier plate, the elastomeric layer including a portion connected to the float for actuating the closure to the open and closed positions in response to movement of the float.