초록 ▼

A liquid dispenser for dispensing liquid cryogen comprises a vessel (10) and a valve/actuator arrangement (16, 18) the valve being positioned within the vessel and operable to obturate or uncover an outlet orifice (14). The actuator (18) being positioned wholly or substantially outside the vessel, b

A liquid dispenser for dispensing liquid cryogen comprises a vessel (10) and a valve/actuator arrangement (16, 18) the valve being positioned within the vessel and operable to obturate or uncover an outlet orifice (14). The actuator (18) being positioned wholly or substantially outside the vessel, but being able to generate a magnetic force within the vessel for moving a magnet on the valve so as to move the valve between open and closed positions.

대표청구항 ▼

A dispenser for dispensing drops of cryogenic liquid comprising a vessel for holding cryogenic liquid having an outlet orifice for allowing liquid cryogen to drain from said vessel, a valve positioned within said vessel associated with said outlet orifice and operable to allow or inhibit the flow of

A dispenser for dispensing drops of cryogenic liquid comprising a vessel for holding cryogenic liquid having an outlet orifice for allowing liquid cryogen to drain from said vessel, a valve positioned within said vessel associated with said outlet orifice and operable to allow or inhibit the flow of cryogenic liquid from said vessel, and an actuator operable to cause said valve to be opened and closed characterized in that said actuator comprises a magnetic device positioned outside said vessel for generating a magnetic force within the vessel capable of causing said valve to move between open and closed positions.