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US 4,300,880 AGranted
Orientation-blow molding equipment and jig used therefor
AssigneeYoshino Kogyosho Co., Ltd.
InventorSadao Suzuki
Life of this patent
Estimating the term…
Abstract
In orientation-blow molding equipment, improved heating equipment is used for evenly and uniformly heating an injection molded piece under optimum temperature conditions for the succeeding biaxial orientation, with the aid of an improved jig which contributes to an efficient reheating and molding of the piece.
Claims3
A heating chamber for use in a machine for producing biaxially oriented containers, comprising:
- a rotary disk having a top face;
- a cover disposed above said disk and spaced from the top face of said disk;
- a core metal means located substantially on the outer circumference of the top face of said disk;
- a jig means supported by said core metal means;
- a plurality of sets of heating elements disposed in the vicinity of the outer circumference of the top face of said disk;
- and
- a heat exhausting damper associated with said cover and each set of heating elements, the combinations of the sets of heating elements and the heat exhausting dampers forming a plurality of heating zones within said heating chamber, said heating zones providing incremental heating for a container piece mounted on said jig means.
4 more elements
Dependencies are inferred from the claim text.