US 12,065,283 B2
Lightweight contact lens blister packages and methods for recycling same
Jesus Javier Rivera Velez, Juana Diaz, PR (US); Javier E. Alayon Rivera, Juana Diaz, PR (US); Jose A. Burgos Cruz, Coamo, PR (US); and Lucas Sievens Figueroa, San Juan, PR (US)
Assigned to COOPERVISION INTERNATIONAL LIMITED, Fareham (GB)
Filed by CooperVision International Limited, Fareham (GB)
Filed on Oct. 25, 2022, as Appl. No. 17/972,595.
Application 17/972,595 is a continuation of application No. 17/872,025, filed on Jul. 25, 2022, granted, now 11,511,909.
Claims priority of provisional application 63/347,706, filed on Jun. 1, 2022.
Claims priority of provisional application 63/347,732, filed on Jun. 1, 2022.
Prior Publication US 2023/0391502 A1, Dec. 7, 2023
Int. Cl. B65D 21/02 (2006.01)
CPC B65D 21/0228 (2013.01) [B65D 21/0233 (2013.01); B65D 2565/385 (2013.01); B65D 2585/545 (2013.01); Y10T 29/49826 (2015.01)] 20 Claims
OG exemplary drawing
 
1. A method of recycling a contact lens blister package, said contact lens blister package comprising:
a thermoplastic base member having a weight from 0.40 g to 0.72 g and comprising a bowl that defines a blister cavity dimensioned to accommodate a contact lens, and a flange projecting away from the blister cavity, the flange having a top surface and a bottom surface, the flange providing a sealing ring region circumscribing the blister cavity at the top surface, and the flange providing a gripping portion configured to be held between a thumb and a finger of a contact lens wearer and further comprising an interlocking feature that comprises a connecting member configured to mechanically fasten the thermoplastic base member to a second thermoplastic base member of another contact lens blister package and wherein the connecting member comprises a hole on the flange;
a liquid contact lens packaging solution provided in the blister cavity;
an unworn contact lens located in the contact lens packaging solution in the cavity; and
a sealing member hermetically sealed to the sealing ring region of the thermoplastic base member to maintain the contact lens in a sterile condition, and said method comprising:
removing the sealing member from the thermoplastic base member;
removing the contact lens from the blister cavity;
removing the liquid contact lens packaging solution from the blister cavity;
coupling two of the thermoplastic base members of two contact lens blister packages by inserting a gripping portion end of one thermoplastic base member into a hole of the second thermoplastic base member to form a thermoplastic base member assembly.