US 2003/0201014 A1 · Siphonable check valve and method of making same

Abstract

A check valve for connection in a fuel tank filler tube. The valve has a tubular body with a plurality of radially inwardly extending vanes or ribs in the inlet end about a portion of the circumference. The ribs are tapered in the flow direction to deflect the end of a siphoning hose to an offset opening. A valve seat and poppet with a tapered surface are disposed downstream of the ribs, clearance apertures are formed in the side of the tubular body downstream of the valve seat. The tapered surface of the poppet, upon being opened by insertion of the end of a siphoning hose deflects the hose outwardly through the clearance apertures to facilitate further insertion into the tank. The poppet is biased normally closed by a spring.

Claims13

Dependent claims

A check valve assembly for use in a fuel tank filler tube comprising:

(a) a valve body having a valving passage with an inlet having a plurality of spaced projections disposed about a portion of the inner periphery of the passage adjacent the inlet;
(b) an annular valve seat disposed in said passage downstream of said projections;
(c) a valve poppet slidably disposed in the body with a resilient valving surface thereon operable for seating against said annular valve seat;
(d) an aperture formed in the wall of said passage downstream of said valve seat and located in a portion of said body to be disposed within the tank;
and,
(e) means biasing said valve member in a direction closing said resilient valving surface on said valve seat, wherein upon insertion of one end of a siphon hose in said inlet, said projections are operable to direct the said one end through said aperture thereby facilitating further insertion into the tank.

3 more elements

Dependencies are inferred from the claim text.

Siphonable check valve and method of making same

Life of this patent

Siphonable check valve and method of making same

Life of this patent

Abstract

Claims13