The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 19, 1987
Filed:
May. 03, 1985
Gerard J Kerins, New Fairfield, CT (US);
Wayne N Collette, Merrimack, NH (US);
Martin H Beck, Merrimack, NH (US);
Richard E Clark, Merrimack, NH (US);
Ieuan L Harry, Nashua, NH (US);
Suppayan Krishnakumar, Nashua, NH (US);
Bryan H Miller, Nashua, NH (US);
Richard C Nichols, Tyngsboro, MA (US);
David Piccioli, Auburn, NH (US);
Louis D Tacito, Merrimack, NH (US);
Eileene M Worsowicz, Merrimack, NH (US);
Continental PET Technologies, Inc., Stamford, CT (US);
Abstract
This relates to a method of forming a thermal/collapse-resistant highly oriented polyester container for use in hot fill applications. In accordance with the method of a polyester preform is reheated and then placed in a blow mold cavity whereat the preform is distended to match the blow mold cavity to form an intermediate article including a container having an oriented end unit receiving finish of a diameter materially greater than the diameter of the preform. The method is characterized in that in providing the preform the composition of the polyester, the draw ratio during distending of the preform and reheat conditions are all controlled to provide a container with a sidewall and finish density in the range of 1.350 to substantially but less than 1.370 grams/cubic centimeter.