초록 ▼

A nozzle and gate for a plastic injection mold wherein the gate has a primary sealing surface located adjacent to the vestige and a secondary sealing surface located behind or inwardly of the primary sealing surface. The nozzle has an insert retainer threadably mounted therein to hold a tip or torpe

A nozzle and gate for a plastic injection mold wherein the gate has a primary sealing surface located adjacent to the vestige and a secondary sealing surface located behind or inwardly of the primary sealing surface. The nozzle has an insert retainer threadably mounted therein to hold a tip or torpedo type insert. The insert retainer has an outer annular primary seal which engages the gate primary sealing sur-face, and an intermediate secondary sealing ring which engages the gate secondary sealing surface.

대표청구항 ▼

1. A nozzle for use with a plastic injection mold gate defining a vestige, the nozzle comprising: a main body portion including a central bore having an inlet portion, an enlarged threaded outlet portion, and an annular shoulder separating said portions; a nozzle insert located in the outlet portion

1. A nozzle for use with a plastic injection mold gate defining a vestige, the nozzle comprising: a main body portion including a central bore having an inlet portion, an enlarged threaded outlet portion, and an annular shoulder separating said portions; a nozzle insert located in the outlet portion, the insert including an annular flange adapted to engage said annular shoulder; a hollow threaded insert retainer threadably mounted in said outlet portion, the insert retainer having an inner annular shoulder for clamping engagement with the nozzle insert annular flange, an outer annular primary seal adapted to sealingly engage the mold gate behind the vestige, and an intermediate secondary sealing ring adapted to sealingly engage the mold gate behind the primary seal.