US 2005/0028873 A1 · Siphonable poppet-type fill tube check valve

Abstract

A tubular poppet type check valve for a fuel tank filler tube having annular barbs on the inlet end for snap-in attachment in a non-metallic tank spud and provisions for push-in connection with the end of a metallic spud which is crimped over a groove. The poppet has an annular groove with an overmolded elastomeric seal formed preferably with a wiper portion for facilitating sealing on a valve seat. The poppet has a post portion slidably guided in an aperture in the closure provided in the downstream of the valve. A slot in the side of the valve body allows a siphon hose inserted in the inlet to exit the valve and feed through to the bottom of the tank. Deflector vanes are provided in the inlet end to direct a siphon hose to the outlet slot. The poppet has turbulence reducing vanes on the upstream side.

Claims24

Dependent claims

A siphonable filler tube valve assembly comprising:

(a) a generally tubular body with an inlet end adapted for receiving fuel upon refueling through the filler tube and an annular valve seat therein downstream of the inlet and an end distal said inlet end for attachment to a fuel tank spud;
(b) a poppet moveable between a position closing and a position opening said valve seat including means operable for biasing said valve to the closed position;
(c) an outlet opening formed in the wall of said body downstream of said valve seat;
(d) said poppet including surfaces operable to direct the end of a siphon hose inserted through said inlet end and said valve seat outwardly through said outlet as said siphon hose moves the poppet to the open position;
and,
(e) said poppet having an annular flexible seal overmolded thereon for sealing against said valve seat.

3 more elements

Dependencies are inferred from the claim text.

Siphonable poppet-type fill tube check valve

Life of this patent

Siphonable poppet-type fill tube check valve

Life of this patent

Abstract

Claims24