| 摘要 |
A self-closing discharge valve for use in a pressurized container from which a liquid product is to be dispensed, with the aid of a propellant, in liquid, pasty or foamy condition, which valve opens automatically when an external part thereof is moved in a given direction, and comprises (a) as said external part, a tubular actuating member having an outlet orifice, an intake orifice for product into the valve; and a tubular passage connecting the two orifices; (b) an obturating member displaceable between an open position and a closed position, in the tubular passage and having an obturating head obturating the intake orifice, and (c) a spring-like elastically resilient portion of the actuating member for biassing the actuating and obturating members toward closed position when the valve is brought into open position; whereby, when the actuating tube is moved toward inward position, the intake orifice is opened.
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