Patent ID: 7448184
Filing Date: 2008-11-11
Classification: A61J,B29C,B29L,B32B,B65D

Abstract:
1. A method for forming a laminate assembly, comprising the steps of: a. providing a base sheet and a lid sheet, said base sheet having formed therein a blister pocket containing a pharmaceutical composition and comprising a first mating surface; said lid sheet comprising a second mating surface, said base and lid sheets having a primary seal formed between said first and second mating surfaces to form a primarily sealed laminate assembly; b. exposing a portion of said primary sealed laminate assembly to a bonding device to create a secondary seal therein; wherein said bonding device is an ultrasonic welder, said ultrasonic welder comprising a welding sonotrode and an anvil, and said primary sealed laminate assembly is positioned therebetween to form said laminate structure, wherein said anvil comprises at least one rotary anvil defining an annular edge, and said avil comprises an axle having an axis of rotation and a pair of rotary anvils; a first rotary anvil having a first side extending generally tangentially from said axis of rotation and having a first annular edge; and a second rotary anvil having a second side extending generally tangentially from said axis of rotation and having a second annular edge; said first and second rotary anvils being spaced from each other, at least a portion of said first and second annular edges contacting said laminate structure during the creation of said secondary seal.