| 摘要 |
Apparatus for dispensing a liquid material from a reservoir (12), the apparatus comprising a first vessel (11) which forms an intermediate chamber and which is arranged to receive material from the reservoir (12), a second vessel (10) which forms a dispensing chamber and which is arranged to receive material from the intermediate chamber (11), first pressurising means whereby the intermediate chamber (11) can be pressurised, second pressuring means whereby the dispensing chamber (10) can be pressurised, first valve means (13) operable to permit material to be admitted into the intermediate chamber (11) from the reservoir (12), second valve means (14) operable to permit material to be admitted into the dispensing chamber (10) from the intermediate chamber (11), and a duct (19) extending from within the dispensing chamber (10) whereby material can be dispensed through the duct (19) from the dispensing chamber (10) by pressurisation of the dispensing chamber (10).
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