Abstract: A vehicle article carrier system for use on an outer body roof surface of a vehicle to removably support articles above the outer body roof surface. The system may use a pair of support rails secured to the outer body surface generally parallel to one another. The system may also include at least one cross bar having a pair of end supports. Each support rail may include a decorative cover and metallic support element, with the decorative cover being positioned over the metallic support element, and secured thereto, to at least substantially cover the metallic support element. The metallic support element may include at least one aperture at each opposing longitudinal end thereof that allows the support rail to be secured to the outer body roof surface at only its opposing longitudinal ends, and to use pre-existing fastening elements mounted in the outer body roof surface as attachment points for the support rails.

Abstract: A mold apparatus and method is used to form a solid injection molded plastic part having no internal voids, a Class A finish, a sink-free exterior appearance surface, and unevenly distributed structural detail extending from the opposite surface, the detail including free-standing reinforcement ribs, attachment bosses, and the like. In sequence, a seal groove in the mold cavity is reduced to a pressure below atmospheric (i.e., negative), a charge of hot thermoplastic is introduced into the mold cavity and seal groove whereby to form a gas seal ring, and pressurized gas is injected into the mold cavity. The pressurized gas forces the hot plastic from one mold half against the other mold half, and the gas seal formed by the plastic prevents gas on one side of the thermoplastic from reaching the appearance surface of the part.

Abstract: An injection mold system and corresponding method that equalizes pressure of flowable plastic dispensed into an injection mold cavity. A gate in communication with the mold cavity introduces a quantity of flowable plastic into the cavity at a predetermined pressure. A gas inlet in communication with the mold cavity at a mold cavity location remote from the gate introduces a gas into the mold cavity to pack the flowable plastic in the mold cavity at a pressure corresponding generally to the predetermined pressure, to thereby minimize the formation of sink marks and warpage on an injection molded part formed therein. The present invention insures formation of the part with a highly finished appearance surface and eliminates the need for painting or otherwise additional finishing of the part.

Abstract: A vehicle article carrier having a pair of one-piece, integrally formed side rail members. Each side rail member has a side rail portion and a pair of end supports integrally formed with terminal ends of the side rail portion. The side rail portion includes a hollow area formed therein and extending along the entire length of the side rail portion. Each end support further includes an inaccessible hollow portion in communication with the hollow portion formed in the side rail portion. Each side rail member forms a lightweight yet rigid member which does not require molding lines, seams or other markings on any portion of the outer surface which is clearly visible to an observer once the side rail members are mounted on an outer body surface of a vehicle. The cost of manufacture is also reduced because the number of molding tools needed to manufacture the side rail member is reduced, as is the complexity and time to assemble the side rail members to an outer body surface of a vehicle.

Abstract: A vehicle article carrier having a pair of one-piece, integrally formed side rail members. Each side rail member has a side rail portion and a pair of end supports integrally formed with terminal ends of the side rail portion. The side rail portion includes a hollow area formed therein and extending along the entire length of the side rail portion. Each end support further includes an inaccessible hollow portion in communication with the hollow portion formed in the side rail portion. Each side rail member forms a lightweight yet rigid member which does not require molding lines, seams or other markings on any portion of the outer surface which is clearly visible to an observer once the side rail members are mounted on an outer body surface of a vehicle. The cost of manufacture is also reduced because the number of molding tools needed to manufacture the side rail member is reduced, as is the complexity and time to assemble the side rail members to an outer body surface of a vehicle.

Abstract: A gas assisted injection molding system and method in which quantity of an inert gas is applied both internally and externally to a thermoplastic material introduced into an injection mold cavity during formation of an injection molded part. The system includes first and second mold portions defining a mold cavity. An injection means injects a quantity of a thermoplastic material into the mold cavity to form an injection molded part within the cavity. At least one internal gas inlet is provided for introducing a first quantity of gas into a portion the thermoplastic material to form a gas channel therein. The gas within the gas channel presses the thermoplastic material against a mold parting line defined by the intersection of the mold portions and forms a seal between the mold cavity and the mold parting line.