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US 4,496,064 AGranted
Blow molded container and method of forming the same
AssigneeThe Continental Group, Inc.
InventorsMartin H. Beck, Suppayan M. Krishnakumar
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AssigneeThe Continental Group, Inc.
InventorsMartin H. Beck, Suppayan M. Krishnakumar
Estimating the term…
This relates to a container which is formed of a thermoplastic material, preferably PET, wherein the container wall and flanges have a high degree of orientation and the required strength characteristics utilizing a minimum of resin in the formation thereof. An intermediate article of manufacture is formed with this article having a generally bottle-like configuration. The intermediate article of manufacture, which is blow molded from a conventional preform configuration, includes a lower portion in the configuration of the desired container and an upper portion which is an accommodation portion. The accommodation portion is removed from the container and becomes scrap which is reground. This abstract forms no part of the specification of this application and is not to be construed as limiting the claims of the application.
An intermediate article of manufacture comprising a blow molded thermoplastic article, said article including a lower portion in the form of a container having a tubular body, an open mouth and a peripheral closure receiving portion, all of said container having a high degree of biaxial orientation with the degree of biaxial orientation of said peripheral closure receiving portion approaching that of said tubular body, and an upper portion in the form of an accommodation element terminating in an open neck portion having substantially no orientation, and said peripheral closure receiving portion being of an outline materially greater than that of said open neck portion
A method of forming a blow molded thermoplastic container of the type wherein all portions of said container have a high degree of biaxial orientation, said method comprising the steps of blow molding from a thermoplastic preform an intermediate article of manufacture including a lower portion in the form of a container having a tubular body, an open mouth and a peripheral closure receiving portion, all of said container having a high degree of biaxial orientation with the degree of biaxial orientation of said peripheral closure receiving portion approaching that of said tubular body, and an upper portion in the form of an accommodation element terminating in an open neck portion having substantially no orientation, and said peripheral closure receiving portion being of an outline materially greater than that of said open neck portion, and severing said accommodation element from said container in an area having a high degree of biaxial orientation.
Dependencies are inferred from the claim text.