Patent ID: 9579836
Date: 2017-02-28
CPC Classifications: B29C,B29K

Claim:
1. A collapsible core assembly comprising: a first retainer plate; a second retainer plate wherein the first and second retainer plates are simultaneously and independently movable; a static core member disposed through the first retainer plate and second retainer plate; a plurality of first extendable members, wherein each one of the plurality of first extendable members is coaxially disposed about the static core member, is pivotally connected to and movable with the first retainer plate and comprises an external engagement feature disposed at a distal end of each first extendable member that is constructed to matingly engage an internal feature of a molded part; a plurality of second extendable members, wherein each one of the plurality of second extendable members is coaxially disposed about the static core member, is pivotally connected to and movable with the second retainer plate and comprises an external engagement feature disposed at a distal end of each second extendable member that is constructed to matingly engage an internal feature of the molded part.