Handy & Harman Automotive Group, Inc.

Other

Advanced Polymer Technology, Inc.

Handy & Harman Automotive Group, Ind.

Timothy A Ashcraft

Andrew Youngs

The secondarily contained piping system having two spaced access chambers that are interconnected by a secondary containment pipe to provide a sealed arrangement for a flexible fluid supply pipe, the ends of which are disposed within the access chambers. The outer flexible pipe is sized to permit the insertion and/or removal of the primary flexible pipe during installation and testing of the same and after backfilling of the trench within which the pipe is disposed, the outer flexible tubing partially collapses to engage and prevent relative movement between the two pipes while providing a flow path thereinbetween.

Secondary containment flexible underground piping system

A process for integrally molding an assembly having parts in a die lock situation, in a single modeling step, with the process steps of has the steps of providing a composite component with a predefined contour, molding a core fuel rail integrated with the composite component, connecting the core fuel rail to a main core structure, overmolding the combined core fuel rail and main core structure to form a finished assembly, removing and melting out the combined core fuel rail and main core structure and extracting the composite component to provide the finished assembly with a substantially accurate finish. The core fuel rails and injector pockets are molded together with the main manifold body in a single step although the injector pockets are in a die lock situation relative to the main manifold body. The interior surfaces of the injector pockets molded using the present invention have a substantially accurate finish.

Process for molding a fuel rail assembly

A laminated fuel line has an inner layer of a synthetic material such as Nylon, an intermediate vapor barrier layer that contains a polyethylene terephathalate material (such as MYLAR), and an outer layer preferably of a high temperature resistant thermoplastic material such as a polyamide or VICHEM olefinic/PVC. A channeled fuel tube has an inner fuel jacket concentrically formed within and spaced from a relatively larger outer jacket, each of which can be formed with the laminated structure above. A connector for the channeled fuel line has a tubular end connecting element for Connecting between the inner and outer fuel lines, a tubular inner connecting element for connecting to the inner line through the end connecting element, and a tubular outer connecting element connecting over both the end connecting element and the inner connecting element. The outer connecting element has a first passageway for communicating with the inner line and a second passageway for communicating with the outer line. The first and second passageways are formed perpendicular to each other.

Laminated fuel line and connector

A laminated fuel line has an inner layer of a synthetic material such as Nylon, an intermediate vapor barrier layer that contains a polyethylene terephathalate material (such as MYLAR), and an outer layer preferably of a high temperature resistant thermoplastic material such as a polyamide or VICHEM olefinic/PVC. A channeled fuel tube has an inner fuel jacket concentrically formed within and spaced from a relatively larger outer jacket, each of which can be formed with the laminated structure above. A connector for the channeled fuel line has a tubular end connecting element for connecting between the inner and outer fuel lines, a tubular inner connecting element for connecting to the inner line through the end connecting element, and a tubular outer connecting element connecting over both the end connecting element and the inner connecting element. The outer connecting element has a first passageway for communicating with the inner line and a second passageway for communicating with the outer line. The first and second passageways are formed perpendicular to each other.

The present invention relates to a process for integrally molding an assembly, having parts in a die lock situation, in a single molding step. The molding process of the present invention has the steps of providing a composite component with a predefined contour, molding a core fuel rail integrated with the composite component, connecting the core fuel rail to a main core structure, overmolding the combined core fuel rail and main core structure to form a finished assembly, removing and melting out the combined core fuel rail and main core structure and extracting the composite component to provide the finished assembly with a substantially accurate finish. The present invention also relates to a manifold with integrally formed core fuel rails. The core fuel rails and injector pockets are molded together with the main manifold body in a single step although the injector pockets are in a die lock situation relative to the main manifold body. The interior surfaces of the injector pockets molded using the present invention have a substantially accurate finish.

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Dover, OH, United States of America

Timothy A Ashcraft