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US 5,514,323 AGranted
Method for making a blow-molded fuel tank containing a breathing system
AssigneeSolvay Automotive, Inc.
InventorFrederic Ramioulle
Life of this patent
Estimating the term…
Abstract
A method for making a fuel tank containing an internal gas removal system by introducing a breathing and/or a venting system into a blow mold for a fuel tank and subsequently blow-molding the fuel tank around these systems.
Claims12
A method for assembling a breathing system including a fill vent tube inside of a fuel tank that is being blow-molded, the method comprising:
- a. placing the fill vent tube inside of a mold for blow-molding the fuel tank, said mold having a blow pin to which a first support ring is attached, wherein said fill vent tube is attached at its distal end to a first attachment means and attached at its proximal end to the first support ring;
- b. dropping a parison around the fill vent tube;
- c. closing the mold, whereby the first attachment means becomes attached to a surface of the parison without passing through the parison, and whereby the first support ring becomes encapsulated into the body of the fuel tank being formed;
- d. introducing a pressurized gas into the mold for blow-molding the parison against surfaces of the mold;
- and
- e. opening the mold.
3 more elements
A method for assembling a breathing system including a fill vent tube inside of a fuel tank that is being blow-molded, the method comprising:
- a. attaching a first supplemental support member to the fill vent tube, said supplemental support member being attached at its distal end to a first attachment means and at its proximal end to a first support ring, the first attachment means having a forward side and a rear side;
- b. placing the fill vent tube inside a mold for blow-molding the fuel tank, said mold having a blow pin to which a first support ring is attached;
- c. dropping a parison around the fill vent tube;
- d. closing the mold, whereby the rear side of the first attachment means becomes attached to a surface of the parison without passing through the parison and whereby the first support ring becomes encapsulated into the body of the fuel tank being formed;
- e. introducing a pressurized gas into the mold for blow-molding the parison against surfaces of the mold;
- and
- f. opening the mold.
4 more elements
Dependencies are inferred from the claim text.