Stock material or miscellaneous articles – Hollow or container type article – Polymer or resin containing
Patent
1990-03-15
1992-04-14
Seidleck, James J.
Stock material or miscellaneous articles
Hollow or container type article
Polymer or resin containing
215 1C, 220606, 4285428, B65D 102, B65D 2300
Patent
active
051047063
ABSTRACT:
This relates to the packaging of a hot liquid product in a container having little resistance to internal vacuum wherein immediately after the container has been filled, the container is internally pressurized and closed. This particularly relates to an injection molded preform formed of a suitable polyester resin which is of a configuration related to an intended blow mold cavity whereby the desired biaxial orientation is obtained in the various portions of the resultant container and the wall thickness of the container base is increased so as to prevent undue stress enlargement and creep at high internal pressurization. Internal pressurization on the order of 40-45 psig is envisioned.
REFERENCES:
patent: 3137748 (1964-06-01), Makowski
patent: 4406854 (1983-09-01), Yoshino
patent: 4715504 (1987-12-01), Chang et al.
patent: 4755404 (1988-07-01), Collette
patent: 4785948 (1988-11-01), Strassheimer
patent: 4885197 (1989-12-01), Strassheimer
patent: 4915992 (1990-04-01), Takakusaki et al.
patent: 4927679 (1990-05-01), Beck
patent: 4950514 (1990-08-01), Strassheiher
Collette Wayne N.
Krishnakumar Suppayan M.
Nahill Thomas E.
Brown Charles E.
Continental PET Technologies Inc.
Seidleck James J.
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