Owens-illinois, Inc.

Automated Container Corporation

Ralph G Amberg

Stephen W Amberg

An improved composite container, and method of forming same, which incorporates a unique plastic end which is compression molded into bonded engagement with a composite container body. The plastic end is formed from a like material which forms the inner or outer lining on the composite container body so as to form a leak-proof seal between the plastic end and the composite container body.

Composite container and method

This invention provides a high output machine for effecting the production of organic thermoplastic articles by the compression molding technique. A plurality of molding members having open top molding cavities are movable around a horizontal closed loop path. A plurality of horizontally moving plungers are provided which are respectively co-operable with the molding members in a portion of their path to close the open top of the molding cavities. Successive gobs of heated organic thermoplastic material are deposited in the open top molding cavities at a point prior to the molding members moving into vertical alignment with the plungers. A relative vertical displacement between the plunger and the molding members is then effected to bring each plunger into engagement with the respective molding member and effect the compression molding of the inserted gob to conform to the molding cavity. After formation of the molded article and appropriate time for cooling, the molding members and plungers are relatively vertically displaced to permit the molded thermoplastic article to be removed from the molding cavity. In accordance with a specific embodiment of this invention, the molded article may comprise the end wall of a can and successive can side walls or bodies are respectively disposed in surrounding relationship to the plungers and carried into the compression molding area with the end portions of such bodies entering the molding cavity so that the compression molded end wall is formed around and united to the side wall in the compression molding operation.

Compression molding machine for organic thermoplastic materials

This invention relates to apparatus and method for producing a composite container having a neck label or tubular sleeve mounted temporarily thereon adapted to be shrunken into final surface covering relation. The tubular sleeve is preformed of relatively-stiff material and flat-folded until ready for use when it is fully opened and conveyed into vertical alignment with a container therebeneath. The sleeve preform comprised of heat-shrinkable plastic material is telescopically assembled onto the container while the latter is transported in spaced upright arrangement. The preform is moved downwardly by a pair of gripping vacuum cups moving downwardly and divergently to open the preform and place the same telescopically on the container upper portion. Alternately, the opened preform is placed on a cylindrical mandrel to more fully open the preform prior to its being mounted telescopically on the container neck portion. The preform on the upper portion of the container in finally-aligned relation is then adapted to heat-shrinking in place in permanent conforming arrangement.

Apparatus and method for assemblying tubular sleeve preforms and

A cup or other nestable container is formed from two continuous web stocks of thermoplastic material, particularly an expanded thermoplastic material. A rectangular blank to form the sidewall of the container is severed from a first web stock, and formed into a cylindrical sleeve with the end portions thereof joined to one another in a liquid-tight seam extending the full height thereof. A circular bottom closure disc is cut from a second web stock and transferred to a recessed top of a forming mandrel carried on a continuously-moving turret. The cylindrical sleeve is positioned about the forming mandrel, which carries the sleeve and bottom closure disc to various subassemblies that cooperate with the forming mandrel to produce a finished cup. The cylindrical sleeve is forced downwardly into a heated rimming die positioned adjacent the lower edge of the forming mandrel to cause the lower edge of the sleeve to be rimmed. The cylindrical sleeve is shrunken to conform to the side contour of the forming mandrel, and the upper end of the sleeve extends inwardly to provide an inturned position overlying the periphery of the bottom closure disc. The bottom closure disc and inturned portion are sealingly joined and contoured to finish the bottom of the container.

Method for fabricating thermoplastic containers

Method and apparatus for fabricating thermoplastic containers

A cup or other container is fabricated from two continuous web stocks. The sidewall, which is formed from a rectangular sheet-like blank of thermoplastic material cut from one web, is produced by winding the blank in a cylindrical winding mechanism to present the edges in overlapping relationship, heating the edges as the cylindrical blank is transferred axially in the winding mechanism, and compressing the edges between seaming rollers to join the edges into a liquid-tight seam. The cylindrical sleeve is placed on an upward-facing forming mandrel carried on a conveyor. A bottom disc closure is partially cut from a second web, transferred by the web into overlying relationship with the path of the forming mandrels, punched from the web, and deposited on the top of the forming mandrel preparatory to reception of the cylindrical sleeve. The cylindrical sleeves are shrunken about the forming mandrels to cause them to assume the shape thereof. The disc is joined to the shrunken sleeve to provide a liquid-tight seam at the bottom of the container. A rim is formed at the opposite end of the container by reciprocating die mechanisms which cooperate with the forming mandrels to finish the containers while on the forming mandrels.

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Monticello, IN, United States of America

Ralph G Amberg