Patent ID: 6089256
Filing Date: 2000-07-18
Classification: B65D,F16K,Y10T

Abstract:
A metering valve for use with a pressurised dispensing container, containing a product for dispensation, the valve comprising a valve stem coaxially slidable within a valve member defining an annular metering chamber, outer and inner annular seals operative between the respective outer and inner ends of the valve member and the valve stem to seal the annular metering chamber therebetween, wherein the valve member comprises a main component part and a liner lining at least a portion of an inner surface of the main component part, the liner defining at least a portion of an inner surface of the metering chamber, wherein the liner is made of a fluoropolymer or a material selected from the group consisting of stainless steel or aluminum, at least a portion of an inner surface of the liner having a coating of a fluoropolymer, and the main component part is made of another material such that, in use, deposition of the product on the inner surface of the metering chamber is reduced.