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CANISTER FOR A METERED DOSE INHALER AND METHOD OF PRODUCING SUCH CANISTER
专利权人:
发明人:
Hans-Jürgen Neugebauer
申请号:
US14429570
公开号:
US20150320945A1
申请日:
2013.09.20
申请国别(地区):
US
年份:
2015
代理人:
摘要:
The invention relates to a canister for a metered dose inhaler for storing a propellant and a medicament under pressure and dispensing said medicament and to a method of producing such a canister. The canister (1) comprises an interior cavity (5) defined by a tubular sidewall (2) defining a longitudinal axis (4) of the canister (1), and a bottom wall (3) and a top cover (15) closing opposite longitudinal ends of the sidewall (2) such that the sidewall (2) extends along the longitudinal axis (4) between the bottom wall (3) and the top cover (15). The bottom wall (3) comprises a central inwardly domed portion (8). The wall thickness of the sidewall (2) is smaller than the wall thickness of the bottom wall (3), and the thickness of the bottom wall (3) is in the range of 0.25 to 0.47 mm and the thickness of the sidewall (2) is in the range of 0.15 to 0.42 mm. The canister (1) may be produced by providing a circular metal blank, deep drawing a cup-shaped container, and ironing the sidewall (2) in order to reduce the wall thickness thereof.
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