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:
Nov. 09, 2004
Filed:
Dec. 13, 2001
Applicant:
Inventors:
Martin H. Beck, Amherst, NH (US);
George F. Rollend, Amherst, NH (US);
Assignee:
DTL Technology Limited Partnership, Amherst, NH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 4/922 ; B29C 4/902 ; B29C 4/974 ; B29C 5/334 ; B29C 5/712 ;
U.S. Cl.
CPC ...
B29C 4/922 ; B29C 4/902 ; B29C 4/974 ; B29C 5/334 ; B29C 5/712 ;
Abstract
A method of preventing delamination of multiple layers of an oriented polymer container having an opening defined by the multiple layers comprising a bi-axially oriented multilayer polymer container having an opening defined by a perimeter at which the multiple layers are exposed; heating the perimeter until workable; providing a curling die; feeding the multilayer perimeter into the curling die to curl the perimeter sufficiently to inhibit delamination of the layers and a container when so made.