An injection molding apparatus for receiving molten material from an injection nozzle and delivering the molten material to a mold cavity is disclosed. The injection molding apparatus includes a molten material conduit device for receiving the molten material and directing the molten material to a molten material receiver defined by a manifold, the manifold directing the molten material the mold cavity housed within the mold assembly of the apparatus. The molten material conduit device includes a manifold-sealed interface effector for sealing against the manifold, and a back plate engager for engaging the back plate that secures the molten material conduit device to the manifold. The manifold, the molten material conduit device and the back plate are cooperatively configured such that a discharge end of the conduit device is sandwiched between the manifold and the back plate and such that the discharge opening is disposed in alignment with the molten material-receiver.

An injection molding apparatus for receiving molten material from an injection nozzle and delivering the molten material to a mold cavity is disclosed. The injection molding apparatus includes a molten material conduit device for receiving the molten material and directing the molten material to a molten material receiver defined by a manifold, the manifold directing the molten material the mold cavity housed within the mold assembly of the apparatus. The molten material conduit device includes a manifold-sealed interface effector for sealing against the manifold, and a back plate engager for engaging the back plate that secures the molten material conduit device to the manifold. The manifold, the molten material conduit device and the back plate are cooperatively configured such that a discharge end of the conduit device is sandwiched between the manifold and the back plate and such that the discharge opening is disposed in alignment with the molten material-receiver.

Resin supply system in which resin material is stored in a pouch in a degassed state ready for use. The pouch comprises a body portion forming a reservoir for resin material and a connector portion in fluid communication therewith. The connector portion includes an outlet which is configured to be connected to an injector head of an injector assembly, the injector head being connectable to a mould by means of connecting tubing to provide a resin supply thereto. The pouch is configured to be mountable in a housing of the injector assembly and is compressed by hydrostatic pressure of water surrounding the pouch in a chamber of the housing. The application of pressure by a piston moving in a direction transfers pressure to the water and then to the pouch in a controlled manner to provide the resin supply to the mould. After use, the pouch is removed and discarded thereby substantially eliminating the need for cleaning of the housing after use.

Resin supply system in which resin material is stored in a pouch in a degassed state ready for use. The pouch comprises a body portion forming a reservoir for resin material and a connector portion in fluid communication therewith. The connector portion includes an outlet which is configured to be connected to an injector head of an injector assembly, the injector head being connectable to a mould by means of connecting tubing to provide a resin supply thereto. The pouch is configured to be mountable in a housing of the injector assembly and is compressed by hydrostatic pressure of water surrounding the pouch in a chamber of the housing. The application of pressure by a piston moving in a direction transfers pressure to the water and then to the pouch in a controlled manner to provide the resin supply to the mould. After use, the pouch is removed and discarded thereby substantially eliminating the need for cleaning of the housing after use.

An injection molding apparatus having a valve pin plate coupling at least one valve pin to an actuator which, in operation, axially moves the valve pin plate between a closed position and an open position. The valve pin is coupled to the valve pin plate via a valve pin coupler. A biasing member is compressed against a support surface by the valve pin holder when the valve pin plate is in the closed position to create a supplementary coupling force coupling the valve pin to the valve pin holder.

An injection molding apparatus having a valve pin plate coupling at least one valve pin to an actuator which, in operation, axially moves the valve pin plate between a closed position and an open position. The valve pin is coupled to the valve pin plate via a valve pin coupler. A biasing member is compressed against a support surface by the valve pin holder when the valve pin plate is in the closed position to create a supplementary coupling force coupling the valve pin to the valve pin holder.

A hot runner system having a nozzle received in a well in a mold plate. The nozzle has a melt channel, a nozzle body through which the melt channel extends, and a collar connected to and spaced apart from the nozzle body. A manifold is seated against the nozzle. The manifold has a melt channel in fluid communication between a source of moldable material and the nozzle channel. A bearing member against which a seating surface of the collar is supported is received in the well, and a biasing member is seated between a step in the well and the bearing member. The biasing member has plate loading surface and a nozzle loading surface. The nozzle loading surface and the plate loading surface are concentric with the seating surface of the collar and are circumferentially offset from the seating surface of the collar in opposite directions.

A hot runner system having a nozzle received in a well in a mold plate. The nozzle has a melt channel, a nozzle body through which the melt channel extends, and a collar connected to and spaced apart from the nozzle body. A manifold is seated against the nozzle. The manifold has a melt channel in fluid communication between a source of moldable material and the nozzle channel. A bearing member against which a seating surface of the collar is supported is received in the well, and a biasing member is seated between a step in the well and the bearing member. The biasing member has plate loading surface and a nozzle loading surface. The nozzle loading surface and the plate loading surface are concentric with the seating surface of the collar and are circumferentially offset from the seating surface of the collar in opposite directions.

A mold for casting a polymeric aircraft window panel includes a first mold half having a first mold surface, and a second mold half having a second mold surface. The first mold surface and/or the second mold surface have a shape conforming to a final shape for the major surfaces of the aircraft window panel. The first mold half and/or the second mold half can be formed of rolled, hydroformed, or stamped metal.

A mold for casting a polymeric aircraft window panel includes a first mold half having a first mold surface, and a second mold half having a second mold surface. The first mold surface and/or the second mold surface have a shape conforming to a final shape for the major surfaces of the aircraft window panel. The first mold half and/or the second mold half can be formed of rolled, hydroformed, or stamped metal.