Patent ID: 7866974

Claim:
A melt distribution apparatus of a hot runner, comprising: a plurality of chokes each being associated with a corresponding one of a drop of a plurality of drops; each choke of the plurality of chokes being configured to contribute, during an injection of a molding material therethrough, a choke melt-pressure loss such that the plurality of chokes will contribute an aggregate choke melt-pressure loss that is generally between 10% and 75% of an aggregate hot runner melt-pressure loss; whereby the aggregate choke melt-pressure loss so configured overwhelms any intrinsic melt-pressure imbalances between drops of the plurality of drops for a more generally balanced melt flow through the plurality of drops, wherein the plurality of chokes are static and non-movable devices in operation, and the plurality of chokes serve to choke a melt channel defined in with a corresponding one of a drop of the plurality of drops, and during injection of a melt of molding material, the plurality of chokes serve to meter flow through melt channels at a fixed and predictable rate, wherein: said each choke of the plurality of chokes is arranged between a housing member and a tip member of each nozzle of a plurality of nozzles, and said each choke is arranged in an adapter member that is pressed into a seat defined in a tip body, the seat is positioned adjacent an interface between the tip member and the housing member.