Tamper evident overcap
 There is disclosed an overcap for a container with a primary cap for the removal of the contents thereof, whereby the overcap is easily assembled onto the container and completely surrounds the primary cap. When assembled, the overcap prevents access to the primary cap, and when removed, the overcap becomes irreversibly deformed such that visual evidence is clearly apparent that access to the primary cap has been gained. The irreversible deformity consists of tabs connecting the pull-tab to the overcap, and weakened areas in the side of the overcap which must be torn to allow removal of the primary cap. 
Merck & Co., Inc.
B B B B
B65D B65D B65D B65D
additional inventional inventional additional
Norman D. Heinz P. Abraham
Knopf Meyer Leibson