US 12,145,771 B2
Container construction with flexible liner and one-way valve
Sabrina V. Dixon-Garrett, Bennettsville, SC (US); and Lawrence Robert Carpenter, Darlington, SC (US)
Assigned to Sonoco Development, Inc., Hartville, SC (US)
Filed by Sonoco Development, Inc., Hartsville, SC (US)
Filed on May 16, 2023, as Appl. No. 18/198,028.
Application 18/198,028 is a continuation of application No. 16/922,212, filed on Jul. 7, 2020, granted, now 11,691,777.
Claims priority of provisional application 62/871,431, filed on Jul. 8, 2019.
Prior Publication US 2023/0286692 A1, Sep. 14, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. B65D 3/26 (2006.01); B65D 3/04 (2006.01); B65D 17/50 (2006.01); B65D 51/20 (2006.01)
CPC B65D 3/268 (2013.01) [B65D 3/04 (2013.01); B65D 17/502 (2013.01); B65D 51/20 (2013.01); B65D 2577/205 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A container comprising:
a base;
at least one sidewall extending upwardly from the base and terminating in a top edge, wherein the at least one sidewall is paper based;
a removable flexible membrane adhered to the top edge, wherein the membrane comprises a one-way valve;
a liner ply adhered to an interior surface of the sidewall with a releasable adhesive, wherein the liner ply is configured to at least partially release from the sidewall upon a first pressure differential between the pressure within the container and an external pressure; and
wherein the adhesive is resealable and configured to allow readherence of the liner ply to the container sidewall upon a second pressure differential between the pressure within the container and an external pressure.