A mold stack for a mold comprises a mold core configured for reception in a mold cavity plate with an outer molding surface. The mold core comprises an inner core with a first tapered guide surface and an outer core with a second tapered guide surface. The inner core is received through a passage in the outer core. A spacer slidably supports the outer core on the inner core. The outer core is movable relative to the inner core between a molding position in which the inner and outer cores define a mold cavity with the outer molding surface, and an open position in which the outer core is extended relative to the inner core. In the molding position, the first and second tapered guide surfaces engage one another to align the inner and outer cores.

A preform including a preform neck; a preform body extending from the neck; and a preform end cap extending from the preform body; wherein the body and end cap have: an inner layer having an inner layer inner surface and an inner layer outer surface; an outer layer having an outer layer inner surface and an outer layer outer surface; wherein the inner layer is positioned interior to the outer layer, characterized in that outer layer in the end cap have an interlock, wherein the interlock includes a stem and a head extending from the stem, the interlock being connected to the outer layer inner surface by the stem, such that the inner layer and outer layer are connected in the end cap by the interlock.

A curved portion at an inner circumferential face on a bend direction inside of a bend has a circular arc shape. By configuring the curved portion with a circular arc shape, a recess, serving as an example of a cross-sectional area enlargement portion that enlarges the cross-sectional area of a flow path of a pipe body running along a direction of an axial line 13, is formed in the inner circumferential face on the bend direction inside of the bend.

A method of manufacturing a component (124) having a main body (116) and at least one ring sleeve (118) through a molding assembly (100), the method comprising: providing a mold (102) having an inlet (115) and defining a hollow portion (H); placing at least one core to form a free-space (104, 106) within the component (124) inside the mold (102) to bifurcate the hollow portion (H) into a first cavity and a second cavity; pouring a molding material (117) inside the mold (102) through the inlet (115); allowing the molding material (117) to set inside the mold (102) around the core within the first cavity and the second cavity to form a main body (116) and at least one ring sleeve (118) of the component (124); connecting the first cavity and the second cavity and forming at least one first bond and one second bond (130, 132, 134, 136) between the main body (116) and the at least one ring sleeve (118); and removing the at least one core from at least part of the hollow portion (H) within the mold (102); characterized in that: providing the core with at least one recess allowing the molding material (117) to flow therethrough such that on withdrawing the core out of the mold (102), at least one first bond (130, 132) breaks and on withdrawing the core outside the mold (102), at least one second bond (134, 136) breaks.

A valve housing for a fluid valve having at least one fluid channel through which a fluid can flow is provided. The valve housing can have a receiving space for a valve closing body movable in the valve housing, the receiving space having an opening, via which the valve closing body is introduced into the receiving space of the valve housing, and at least one first valve seat being formed in the receiving space and projecting into the receiving space in such a way that at least one undercut is formed in the receiving space by the first valve seat, and the valve housing being an integral injection-molded part, the at least one valve seat being produced integrally with the valve housing by an injection molding process.

The present invention relates to a luggage, having an integrated structure. The luggage includes a one-piece shell, which is constructed from a single molding to form a continuous structure and has at least a top wall and two opposing side walls. The top wall has two sloping curved corners which are sloped and curved toward the cover of the luggage and the respectively abutting side wall. The present also invention provides a method of manufacturing the luggage. The method includes the steps of assembling a family mold to form a mold cavity, injecting mold material into the mold cavity to make the one-piece shell for the luggage, and removing the family mold. The family mold includes an inner mold tool and an outer mold tool, and the step of removing the family mold includes the steps of removing the outer mold tool first, and then, removing the inner mold tool.

Systems and methods of providing a tooling system for forming a unitary housing are disclosed herein. One embodiment may utilize a plurality of injection cavity slides. The slides may form the interior cavity of the housing. Utilizing a plurality of injection cavity slides to form a single cavity insert may allow the slides to be remove from an opening in the housing which is smaller than the cavity of the housing. Removing the slides from housing allows for the formation of housing having a unitary structure.

A method of manufacturing a component (124) having a main body (116) and at least one ring sleeve (118) through a molding assembly (100), the method comprising: providing a mold (102) having an inlet (115) and defining a hollow portion (H); placing at least one core to form a free-space (104, 106) within the component (124) inside the mold (102) to bifurcate the hollow portion (H) into a first cavity and a second cavity; pouring a molding material (117) inside the mold (102) through the inlet (115); allowing the molding material (117) to set inside the mold (102) around the core within the first cavity and the second cavity to form a main body (116) and at least one ring sleeve (118) of the component (124); connecting the first cavity and the second cavity and forming at least one first bond and one second bond (130, 132, 134, 136) between the main body (116) and the at least one ring sleeve (118); and removing the at least one core from at least part of the hollow portion (H) within the mold (102); characterized in that: providing the core with at least one recess allowing the molding material (117) to flow therethrough such that on withdrawing the core out of the mold (102), at least one first bond (130, 132) breaks and on withdrawing the core outside the mold (102), at least one second bond (134, 136) breaks.

A cover for covering an opening of a container for a food stuff includes a substantially flat cover body including at least one aperture and at least one substantially flat flap. The at least one flap including a linear proximal end configured to connect with the cover body and allow the at least one flap to rotate with respect to the cover body. A lower surface of the at least one flap includes a protrusion configured to close the at least one aperture when the at least one flap is at a first position in which the at least one flap is in parallel with the cover body. The cover body and the at least one flap are integrally formed by a co-injection molding. The container and cover are suitable for heating a food stuff in a microwave.

Provided are a resin molding mold enabling an intake manifold made of a resin to be manufactured at low cost, an intake manifold, and a method for molding a resin for an intake manifold. The resin molding mold for an intake manifold includes a slide mold provided at an end of a surge tank and a plurality of combination-type core molds molding an inner surface of the surge tank. The core molds include a first core member capable of a relative movement in advance of another core member after resin molding, and a second core member capable of moving with utilizing an inner space formed by the relative movement of the first core member. The first core member and the second core member are configured to be extractable through a space inwardly of a resin-molded flange.