The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 20, 1999
Filed:
Aug. 25, 1997
Philip W Braithwaite, Strensham, GB;
Innovata Biomed Limited, St. Albans, GB;
Abstract
A metering device, for use in transferring a desired volumetric dose of a flowable substance from a storage chamber containing the flowable substance to a location outside the storage chamber, is disclosed. An outlet conduit is arranged between the storage chamber and the location to which the dose is to be transferred. The metering device is of such size and shape as to be able to pass through the outlet conduit and includes first and second end element which, when the metering device is located inside the outlet conduit, are in a sealing engagement with the inner walls of the outlet conduit. The shape of the metering device between the first and second end elements is such that a space of the desired dose volume is defined between the first and second end elements and the intervening section of the inner walls of the outlet conduit, in which space the flowable substance from the storage chamber may be enclosed. The metering device is of particular use in a dry powder inhaler.