Details for Patent: 4,668,218

Summary for Patent: 4,668,218

Title:	Indicating means for a dosage dispensing device
Abstract:	An indicating means in a dosage dispensing device for medicaments, particularly a dosage inhaler which indicates a number of dosages administered from the dosage dispensing device. The indicating means includes a rotatable disc (1) having apertures (2) passing therethrough which can be filled with a medicament in particle form. By rotating the disc the apertures can be brought into an air channel or duct (3) through which air is inhaled. The rotatable disc has associated with a central portion a spiral groove or ridge (4) which can engage with peripheral teeth (8) on a toothed wheel (6), such that rotation of the disc (1) results in rotation of the toothed wheel and the toothed wheel is provided with one or more markings (9) which are visible from outside the dosage inhaler upon rotating the disc a predetermined number of times.
Inventor(s):	Virtanen; Risto (Nurmij/a/ rvi, FI)
Assignee:	Aktiebolaget Draco (SE)
Application Number:	06/850,959
Patent Claim Types: see list of patent claims	Delivery; Device;

Drugs Protected by US Patent 4,668,218

Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	TE	Type	RLD	RS	Patent No.	Patent Expiration	Product	Substance	Delist Req.	Patented / Exclusive Use	Submissiondate

Foreign Priority and PCT Information for Patent: 4,668,218

Foriegn Application Priority Data
Foreign Country	Foreign Patent Number	Foreign Patent Date
Sweden	8501806	Apr 12, 1985

International Family Members for US Patent 4,668,218

Country	Patent Number	Estimated Expiration	Supplementary Protection Certificate	SPC Country	SPC Expiration
Austria	53501
Australia	5771686
Australia	587460
Canada	1250503
Germany	3671841
Denmark	162425