US 11,718,056 B2
Method of forming a cut in a polymeric component
Jeremiah Migas, Crawfordsville, IN (US); Jeremy Morin, Zionsville, IN (US); and Aravind Murali, West Lafayette, IN (US)
Assigned to Closure Systems International Inc., Indianapolis, IN (US)
Filed by Closure Systems International Inc., Memphis, TN (US)
Filed on Jun. 1, 2020, as Appl. No. 16/889,276.
Claims priority of provisional application 62/856,854, filed on Jun. 4, 2019.
Prior Publication US 2020/0384714 A1, Dec. 10, 2020
Int. Cl. B29D 99/00 (2010.01); B29C 69/00 (2006.01); B26D 3/16 (2006.01); B65D 41/34 (2006.01)
CPC B29D 99/0096 (2013.01) [B26D 3/164 (2013.01); B29C 69/001 (2013.01); B65D 41/3428 (2013.01); B26F 2210/04 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method of forming a polymeric closure, the method comprising:
molding a first closure portion and a second closure portion of the polymeric closure, the first closure portion including a polymeric top wall portion and a polymeric annular skirt portion depending from the polymeric top wall portion, the annular skirt portion including an internal thread formation for mating engagement with an external thread formation of a container, the second closure portion including a polymeric tamper-evident band; and
cutting a portion of the annular skirt portion to form a frangible connection that partially detachably connects the annular skirt portion and the tamper-evident band using a mandrel and a blade assembly including at least one blade, the mandrel including a rigid portion and a conformal support ring, the conformal support ring comprising a polymeric portion, the at least one blade extending into the conformal support ring after the at least one blade has penetrated through the polymeric closure.