US 9,809,370 B2
Barrier spout for a flexible bag and a flexible bag having a barrier spout
David Bellmore, DeWitt, MI (US); Gail Becke, Mundelein, IL (US); Chris Murray, Chicago, IL (US); and Andrew Crick, Hope Valley (AU)
Assigned to Scholle IPN Corporation, Northlake, IL (US)
Filed by Scholle Corporation, Irvine, CA (US)
Filed on Aug. 14, 2014, as Appl. No. 14/459,315.
Prior Publication US 2016/0046427 A1, Feb. 18, 2016
Int. Cl. B65D 75/58 (2006.01); B65D 25/42 (2006.01); B32B 27/08 (2006.01); B65D 35/44 (2006.01); B29C 45/17 (2006.01); B29C 45/20 (2006.01); B29C 45/00 (2006.01); B29L 31/00 (2006.01); B65D 51/22 (2006.01); B65D 47/06 (2006.01); B29C 45/16 (2006.01)
CPC B65D 75/5877 (2013.01) [B29C 45/0046 (2013.01); B29C 45/164 (2013.01); B29C 45/1642 (2013.01); B29C 45/17 (2013.01); B29C 2045/0032 (2013.01); B29C 2045/207 (2013.01); B29L 2031/712 (2013.01); B32B 27/08 (2013.01); B32B 2250/03 (2013.01); B65D 25/42 (2013.01); B65D 35/44 (2013.01); B65D 47/06 (2013.01); B65D 51/22 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A barrier spout comprising:
a base flange having a top surface, a bottom surface and an outer surface;
an upstand portion having a proximal end extending from the base flange terminating at a distal end, with an upper opening at the distal end, and a lower opening at the proximal end;
a removable diaphragm extending across one of the upper opening and the lower opening, which removable diaphragm being cuttable at the respective distal or proximal end at which the removable diaphragm is positioned upon molding thereof
wherein the base flange, the upstand portion and the removable diaphragm structurally comprise a co-injection molded structure, base flange and the upstand portion each comprise a three layer co-injection molded configuration, with an outer layer, an inner layer and a central layer, the central layer having an oxygen transmission rate that is less than an oxygen transmission rate of either of the outer layer and the inner layer.