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A self-sealing actuating device is adapted for being mounted on the valve-body of a conventional pressurized container valve from which liquid product is dispensed with a propellant, in liquid, pasty or foamy condition. The device opens automatically when an external part thereof is moved, and compr

A self-sealing actuating device is adapted for being mounted on the valve-body of a conventional pressurized container valve from which liquid product is dispensed with a propellant, in liquid, pasty or foamy condition. The device opens automatically when an external part thereof is moved, and comprises (a) as said external part, an actuating tube having a discharge orifice; (b) an obturating member lodged stationary in a tubular passage of the actuating tube, having an obturating head obturating the discharge orifice from the outside, and (c) a spring device biassing the actuating tube toward closed position when the actuating device is opened; when the actuating tube is moved toward open position, the obturating head frees the discharge orifice with the compression of the spring device.

대표청구항 ▼

A self-sealing actuating device adapted for being mounted on the valve body, having an outlet channel, of a self-closing discharge valve of 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 actuating device

A self-sealing actuating device adapted for being mounted on the valve body, having an outlet channel, of a self-closing discharge valve of 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 actuating device 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 two open ends, a first one of which is destined to register with the said outlet channel, when said actuating device is mounted on said valve body, the other open end constituting a discharge orifice of said device; and a tubular passage connecting said two open ends; (b) an obturating member lodged stationary in said tubular passage and having an obturating head for obturating said discharge orifice hermetically from the outside, when said tubular actuating member is in a closed position, (c) anchoring means extending radially in said tubular passage in an anchoring zone thereof axially spaced from said other open end of said actuating member, and holding said obturating member and said actuating member in engagement with one another in said zone, and (d) spring means associated with said tubular actuating member and adapted for biassing said actuating member toward said closed position when said actuating member is brought into an open position; said actuating member being axially displaceable relative to said obturating member, between said anchoring zone and said other second open end thereof, between said open and said closed positions, whereby, when said tubular actuating member is moved toward the open position, by an axial force directed away from said discharge orifice, against bias applied to said tubular member by said spring means being compressed, said obturating head protrudes out of said discharge orifice and frees said discharge orifice in the form of an annular gap.