Blister strip for inhaler has separate blisters and single closing layer for the blister cavities

TLDR: In this paper, a strip is made from a row of blisters with apertures cut between blisters but not going as far as its edges, then filled, sealed with the closing layer and the edges cut off to separate the blisters from one another.

Abstract: The strip, having a series of blisters (10) containing doses of a fluid or powdered product, is made with a single closing layer (20) for all the blister cavities in the strip. The blisters are fed one at a time into the inhaler and are separated individually from the closing layer, being discarded outside the inhaler as they are emptied. In addition, the blisters can be made with an edge shaped to facilitate opening. The strip is made from a row of blisters with apertures cut between blisters but not go as far as its edges. The blisters are then filled, sealed with the closing layer and the edges cut off to separate the blisters from one another.