Fluid product dispenser comprises reservoir with vent in bottom sealed by venting system

摘要

The dispenser comprises a product reservoir (10) and a dispensing pump or valve (20). There is a vent (12) in the reservoir bottom (11) which is sealed by a venting system (30) comprising an obturator (31) which spring loaded into a sealing position and elastically deformed to a vent open position when the reservoir pressure is less than atmospheric pressure.