Details for Patent: 6,446,627

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Summary for Patent: 6,446,627

Title:	Inhaler dose counter
Abstract:	A dose counter for a metered dose inhaler comprises actuator means (341), drive means (350) for driving a rotary gear (360) in step-wise fashion in response to displacement of said actuator means (341), said rotary gear (360) comprising a wheel having a plurality of ratchet teeth (not shown) around its periphery. Means (364) are provided to prevent reverse rotation of the rotary gear (360). A flexible tape (368) is provided with a visible array of incrementing integers on its surface indicating the number of medicament doses remaining in the inhaler. The tape (368) indexes by a single integer in response to each step of the step-wise rotary motion of the rotary gear (360). A control surface (371) regulates the position of engagement and disengagement between the drive means (350) and the rotary gear (360). In an alternative embodiment (FIG. 6), the control surface (371) is omitted and the means for preventing reverse rotation comprise a stepless restraint (664).
Inventor(s):	Bowman; Nicholas John (Royston, GB), Holroyd; Michael John (Great Shelford, GB), Panayi; Costaninos (Royston, GB), Treneman; William Richard (Oakington, GB)
Assignee:	Norton Healthcare Limited (London, GB)
Application Number:	09/319,947
Patent Claim Types: see list of patent claims	Use; Delivery;

Drugs Protected by US Patent 6,446,627

Glossary

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Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	TE	Type	RLD	RS	Patent No.	Patent Expiration	Product	Substance	Delist Req.	Patented / Exclusive Use	Submissiondate
>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: 6,446,627

Foriegn Application Priority Data
Foreign Country	Foreign Patent Number	Foreign Patent Date
United Kingdom	9626538	Dec 20, 1996

PCT Information
PCT Filed	December 18, 1997	PCT Application Number:	PCT/GB97/03480
PCT Publication Date:	July 02, 1998	PCT Publication Number:	WO98/28033

International Family Members for US Patent 6,446,627

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Country	Patent Number	Estimated Expiration	Supplementary Protection Certificate	SPC Country	SPC Expiration
Austria	268619	⤷ Sign Up
Australia	5329298	⤷ Sign Up
Germany	69729485	⤷ Sign Up
Denmark	0966309	⤷ Sign Up
European Patent Office	0966309	⤷ Sign Up
>Country	>Patent Number	>Estimated Expiration	>Supplementary Protection Certificate	>SPC Country	>SPC Expiration

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