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:
Feb. 06, 2004
Mark Wickham, Rampton, GB;
Mark Wickham, Rampton, 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. Continued depression opens the side hole () to allow the contents of the metering chamber to be dispensed.