Title: Injection blow molding apparatus and method

Abstract: Injection blow molding equipment for the production of hollow articles wherein cores are axially inserted in blow molds and blank molds is disclosed. Compact core assemblies and fluid supply systems integral with the platens allow the mold parts to be mounted on the surfaces of opposed, relatively movable platens. Partible neck rings associated with each core open divergently outwardly as the blow mold and core separate, to shorten machine cycle time. A manifold, supplied with cooling fluid from the periphery of a core mounting plate, distributes heat transfer fluid to the core assemblies for cooling the neck rings. In one embodiment, mating blow mold sections are mounted on contra-oscillatable mounting members and are opened and closed by arcuate movement of the mounting members.

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Inventors: Saumsiegle, Robert W. (Needham, MA, US)
Harry, Ieuan L. (Billerica, MA, US)

Application Number: 312257
Filing Date: 1972-12-05
Publication_date: 1976-03-02
Assignee: Continental Can Company, Inc. (New York, NY)
Primary Class(es): 425/525 425/441, 425/526, 425/533, 425/534
Other Classes:
US Patent Ref:

2290129	Jul, 1942	Moreland	425/DIG.
2331687	Oct, 1943	Hobson	425/DIG.
2901769	Sep, 1959	Sherman et al.	425/DIG.
3183552	May, 1965	Farkas	425/DIG.
3264684	Aug, 1966	Moslo	425/DIG.
3408691	Nov, 1968	Ruekberg	425/DIG.
3616491	Nov, 1971	Vollers	425/DIG.
3624672	Nov, 1971	Splvy	425/DIG.
3776991	Dec, 1973	Marcus	425/324.
3816580	Jun, 1974	Valyi	425/DIG.

Other Refs:
Primary Examiner: Husar, Francis S.
Assistant Examiner: Rowold, Carl
Attorney: Diller, Brown, Ramik & Wight