Siphonable check valve and method of making same
AssigneeEaton Corporation
InventorsPk Haridass Krishnamoorthy, Steven Verzyl, Robert Benjey
Life of this patent
Estimating the term…
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 projections on the inner surface of the tubular body or mounting adaptor. A valve seat is disposed downstream of the ribs, and an aperture is formed in the side of the tubular body. When the end of a siphoning hose is inserted into the check valve, the projections deflect the hose through the aperture to facilitate further insertion of the hose into the tank.
Claims14
A check valve assembly for use in a fuel tank filler tube comprising:
- a valve body having a valving passage with an inlet;
- a plurality of spaced projections extending from an inner surface of the valving passage adjacent the inlet;
- an annular valve seat disposed in said passage in proximity to the projections;
- a valve that is operable for seating against the annular valve seat;
- an aperture formed in the wall of said passage and located in a portion of said body to be disposed within the tank;
- and
- a resilient member that biases the valve member in a direction closing the valve on the valve seat,
- wherein upon insertion of one end of a siphon hose in the inlet, the plurality of projections direct the one end through the aperture to facilitate further insertion of the siphon hose into the tank.
A method of making a check valve for use in a fuel tank filler tube comprising:
- providing a body having at least a portion of a flow passage with an inlet and outlet end;
- forming a plurality of projections on an inner surface of the flow passage in the inlet end;
- forming an annular valve seat in the passage near the projections;
- forming a siphon hose aperture in one side of the passage, wherein the plurality of projections act as a siphon hose guide toward the aperture;
- and
- disposing a valve in the passage for guided movement therein and biasing the valve in a direction to close the annular seat on the valve seat.
A check valve assembly for use in a fuel tank filler tube comprising:
- a valve body having a valving passage with an inlet;
- a mounting adapter connected to the valve body;
- a plurality of spaced projections extending from an inner surface of the mounting adaptor near the inlet;
- an annular valve seat disposed near the projections;
- a valve that is operable for seating against the annular valve seat;
- an aperture formed in the wall of said passage and located in a portion of said body to be disposed within the tank;
- and,
- a resilient member that biases the valve member in a direction closing the valve on the valve seat,
- wherein upon insertion of one end of a siphon hose in the inlet, the plurality of projections direct the one end through the aperture to facilitate further insertion of the siphon hose into the tank.
A method of making a check valve for use in a fuel tank filler tube comprising:
- providing a valve body having a flow passage with an inlet and outlet end;
- attaching a mounting adaptor to the valve body;
- forming a plurality of projections on an inner surface of the passage in the mounting adaptor near the inlet end of the valve body;
- forming an annular valve seat in the passage near the projections;
- forming a siphon hose aperture in one side of the passage, wherein the plurality of projections act as a siphon hose guide toward the aperture;
- and
- disposing a valve in the passage for guided movement therein and biasing the valve in a direction to close the annular seat on the valve seat.
Dependencies are inferred from the claim text.