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:
Aug. 16, 2011
Filed:
Aug. 10, 2005
Richard J. Warby, Wisbech, GB;
Richard J. Warby, Wisbech, GB;
Consort Medical PLC, Hertfordshire, GB;
Abstract
A metering valve is provided for a pressurised container containing a pharmaceutical formulation. The valve has a stem with a central flange and a hollow open end with a side port. The stem slides in a body having larger and smaller diameter portions, and being closed off by a seal against which the flange rests in an inoperative position. A second seal is located around the stem on the opposite side of the flange and trapped by a spring which urges the stem into its inoperative position. When the stem is depressed, the inner seal forms a sliding seal with the smaller diameter portion of the body to define a metering chamber filled with the pharmaceutical formulation. Continued depression opens the side hole to allow the contents of the metering chamber to be dispensed.