Refillable polyester container and preform for forming the same

Details Refillable polyester container and preform for forming the same Refillable polyester container and preform for forming the same

1990-03-05

1991-11-19

Seidleck, James J.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

4285428, B65D 100

Patent

active

050665286

ABSTRACT:
This relates to a returnable/refillable container in the form of a blow molded polyester biaxially oriented bottle wherein the container includes a domed base construction wherein the wall thickness gradually and smoothly increases to a maximum at the center of the dome. This also relates to a specially configurated preform which is blow molded to form the container and a specially configurated blow mold cavity for receiving a preform having a lower axial projection in the form of an elongated gate without crushing.

REFERENCES:
patent: 4330579 (1982-05-01), Ota et al.
patent: 4334627 (1982-06-01), Krishnakumar et al.
patent: 4725464 (1988-02-01), Collette
patent: 4915992 (1990-04-01), Takakusaki et al.

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