| 主权项 |
1. A pressurized metered dose inhaler (pMDI) comprising a dispensing nozzle and a dust cap for the dispensing nozzle, wherein the dust cap has a cap part adapted for a push-fit on the dispensing nozzle of the pMDI and a strap part for connecting the dust cap to the pMDI, wherein the cap part is slidably mounted on the strap part for sliding movement between an extended position and a contracted position, and wherein the dust cap has a stop mechanism for stopping the cap part in the extended position, and wherein the stop mechanism comprising stop elements on the strap part and the cap part which engage when the cap part is in the extended position, wherein one of the cap part and the strap part comprises a slide member and the other part comprises a track member for the slide member to slide on, and wherein the stop elements are carried by the slide member and the track member, and further wherein a first stop element comprises an opening on one of the slide and track members through which a second stop element on the other part projects, the second stop element having an enlarged section which abuts the edge of the opening in the extended position of the cap part, wherein sliding movement is along an axis and that the opening is oriented transversely to that axis. |
