Patent ID: 11872744
Assignee: BLOCKWISE ENGINEERING LLC
Field: Other special machines (Mechanical engineering)
Classification: CPC B  A | IPC B

Claim 13:
14. The parison tube former of claim 5 wherein said first necking apparatus is configured on a first end of the radial compression heater and wherein a second necking apparatus is configured on a second end of the radial compression heater, said second necking apparatus comprising:
i) a necking die configured to move from an open configuration to a closed configuration;
wherein said necking die of the second necking apparatus is configured in an open configuration to receive said preform tube into the heater;
wherein the necking die of the second necking apparatus is configured to close after stretching the preform tube to produce said second stretched portion; and

wherein said second stretched portion is configured for actuation through the necking die to reduce to diameter of the second stretched portion and press a second end of said balloon portion against the necking die of the second necking apparatus to neck the second end of the balloon portion to produce a second necked end of the balloon portion.