초록 ▼

An apparatus for forming a unitary molded container with a special neck configuration such as a drain-back neck with integrally molded internal threads and a pouring spout. The apparatus comprises a circumferentially continuous sleeve which surrounds the core rod in an injection-blow molding machine

An apparatus for forming a unitary molded container with a special neck configuration such as a drain-back neck with integrally molded internal threads and a pouring spout. The apparatus comprises a circumferentially continuous sleeve which surrounds the core rod in an injection-blow molding machine.

대표청구항 ▼

Apparatus in combination with an injection-blow molding machine for forming a container having a neck with closure attachment means and a radially an injection mold having a neck forming portion for forming a parison with a container neck; offset structure, said machine including: a blow mold; a cor

Apparatus in combination with an injection-blow molding machine for forming a container having a neck with closure attachment means and a radially an injection mold having a neck forming portion for forming a parison with a container neck; offset structure, said machine including: a blow mold; a core rod; and positioning means for sequentially locating said core rod in an operative position relative to said injection mold to mold a parison and in an operative position relative to said blow mold for forming said container; said apparatus comprising: at least one circumferentially continuous neck forming sleeve concentrially spaced around said core rod said sleeve having means for forming said container neck with said closure attachment means and said radially offset structure when said core rod is in said operative position relative to said neck forming portion of said injection mold; and securing means for maintaining said core rod and neck forming sleeve in fixed axial relationship relative to each other during formation of said parison with said container neck in said injection mold and during location of said neck forming sleeve, said core rod and parison in an operational position relative to said blow mold, said securing means being operable to allow movement of said core rod and neck forming sleeve axially relative to each other for removal of said container from said machine.