Patent ID: 6250519
Filing Date: 2001-06-26
Classification: B29C,B29L

Abstract:
An apparatus for producing a nozzle cartridge defined by a cylindrical cartridge body merging with a tapered nozzle comprising a hollow mold (20) defining an interior cavity, a core (26), said core (26) being located interiorly of said hollow mold body (20), said hollow mold body (20) including a cartridge body defining surface merging with a tapered nozzle defining surface through a transition defining surface, said core (26) including an interior core (28) in internal telescopic relationship to an exterior core (27), said exterior core (27) including a cartridge body defining surface cooperative with said hollow mold body cartridge body defining surface to define a cartridge body cavity portion therebetween, said interior core (28) including a tapered nozzle defining surface and a transition defining surface in cooperative relationship with said hollow mold body respective tapered nozzle defining surface and transition defining surface to define therewith a respective tapered nozzle cavity portion and a transition cavity portion, means (25) for introducing pressurized hot polymeric/copolymeric material into said tapered nozzle cavity portion in a flow direction toward said cartridge body cavity portion, and means (41) at said transition cavity portion for centering said interior core (28) relative to said interior cavity during initial pressurized introduction of the hot polymeric/copolymeric material into said tapered nozzle cavity portion and permitting expansion in size of said transition cavity portion following the initial pressurized introduction of the hot polymeric/copolymeric material.