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    • 3. 发明授权
    • Dispenser for a liquid
    • US11225362B2
    • 2022-01-18
    • US17064325
    • 2020-10-06
    • Silgan Dispensing Systems Hemer GmbH
    • Sven-Uwe HöhmHeiko Harms
    • B65D47/18B05B11/00B05B11/04B65D47/20B65D1/32A61F9/00
    • A discharge device for a liquid medium includes a storage container for receiving a medium, a discharge head which can be secured on the storage container and comprises a discharge opening for discharging the medium out of the storage container, an outlet valve which is paired with the discharge opening and comprises a pretensioned valve element that delimits a valve pre-chamber by means of a pressure application surface formed on a membrane. The pressure application surface has a stationary clamping region on the outside, and a pressure equalization channel which opens into the storage container and comprises a filter assembly that operates microbiologically and is inserted into the pressure equalization channel. The pressure equalization channel is separated from a medium path from the storage container to the discharge opening via the valve pre-chamber, and the pressure application surface has a cap-like edge protrusion as a clamping region which can be placed on a plate edge of the inner component of the discharge head on the inside. The plate edge has a stop that extends outward radially and forms a support surface for the edge protrusion while being spaced from the pressure application surface by a head surface of the plate edge.