06328037 is referenced by 56 patents and cites 237 patents.

An indicating device for indicating the number of metered doses of medicaments that have been dispensed from or remain in a container having a valve stem extending longitudinally therefrom and moveable between an open and closed position. The indicating device includes a base member adapted to be mounted to the container, a cap member moveably connected to the base member, an indicator member rotatably mounted to the cap member and an indicating mechanism adapted to rotate the counter member an incremental amount upon a predetermined number of axial movements of the cap member relative to the base member. A preferred embodiment of the indicating device includes a ratchet wheel, a drive member selectively engaging the indicating member, a pawl selectively engaging the ratchet wheel, and a non-return member adapted to selectively engage the ratchet wheel so as to maintain a unidirectional rotation of the ratchet wheel. A method for indicating the number of metered doses dispensed from or remaining in the container comprises moving the cap member toward and away from the base member, engaging the ratchet wheel with the pawl and engaging the indicating member with the drive member. A method of assembling an inhalation device including an indicating device is also provided.

Title
Indicating device for aerosol container
Application Number
9/603427
Publication Number
6328037 (B1)
Application Date
June 26, 2000
Publication Date
December 11, 2001
Inventor
Martin P Foley
London
US
Jerry R Grychowski
Lake Zurich
IL, US
James Nick Schmidt
London
US
Peter Mykola Scarrott
London
US
Agent
Brinks Hofer Gilson & Lione
US
Assignee
1263152 Ontario
US
IPC
A62B 7/00
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