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. 06, 1991
Filed:
Feb. 14, 1990
Alan K Langford, Hoddesdon, GB;
Harris Pharmaceuticals Limited, London, GB;
Abstract
An aerosol metering valve with for use with a pressurized container includes a valve body 10 having a metering cup 8, a valve stem 21 having an outlet passage through which the contents of the metering cup 8 can be dispensed, a transfer passage 22 through which the contents of the metering chamber 31 can pass to the outlet passage, and a passageway including ports 35 and 37 through which contents of the container can pass to the metering chamber. A valve seal 6 is disposed between the valve body 10 and a container. A second valve seal 12 is retained between a cup 8 and the valve body. A ring member 38 is positioned coaxially with respect to the valve retaining member and is provided with castellating slots 40.