| 摘要 |
This invention refers to a pump (2) which is secured to a reservoir container (3) with an interposed seal. Seal contains a filter unit (20) to allow filtered exterior air to be re-supplied in reservoir chamber (35) while being poured. As result of this, air does not need to flow through pump (2) interior. Further, filter (21) does not need to be selected according to requirements until pump and reservoir are assembled. Further, mounting is simplified and does not need a separated support for filter (21).
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