| 摘要 |
1,267,305. Valveassembly. AEROSOL INVENTIONS & DEVELOPMENT S.A. July 14, 1970 [July 18, 1969], No. 34017/70. Heading F1R. A valve assembly for a pressurized fluid dispenser comprises a housing 9 defining a valve chamber 15, a gasket 11 in sealing engagement with an open end of the housing, a valve 18 which is partly within the valve chamber and extends through an aperture in the gasket and which is movable between non-dispensing and dispensing positions, and biasing means in the form of a resilient plate 38, supported on a ledge 40 in the chamber 15, which engages the end of the valve to urge it against the gasket 11. The valve 18 cooperates with valve seat 19 and has a bore 20 closed at one end by a spigot 21, and an enlarged portion 24 having in its periphery axial grooves 26, Fig. 5, and also having a radially extending recess 29 in which is an orifice 28 in communication with the bore 20. In the non-dispensing position the upper rim of the valve seat 19 engages the gasket 11, but if the valve 18 is depressed or tilted by means of actuator button 22 then fluid in the valve chamber 15, which is in communication with the interior of the dispenser via dip-tube 14, is allowed to pass through the seat 19, up the bore 20, and is emitted from outlet 23. |
