| 摘要 |
A dispensing apparatus for dispensing a product from a container (600) under pressure of a propellant by means of a composite piston (138). The apparatus has a valve (701) operated by means of an actuator (702) and a lever (630). The actuator co-operates with the valve and lever by means of a screw thread arrangement, such that turning the actuator relative to the lever varies the flow rate of product out of the apparatus. The valve is held in place by a retaining member (715) provided with an internal thread. An actuator (702) fits over the retaining member (715) and is rotationally coupled to the retaining member (715) by ribs (716,717). No boss is required to fit the valve assembly to the container (600), making the filling and assembly of the can simpler. <IMAGE> <IMAGE> |
