| 摘要 |
A pump base assembly for connecting a pump cylinder and a container for fluid to be pumped including a unitary body member adapted to receive and clamp the pump cylinder, a check valve carried by the body member, and sealing means providing a fluid-tight seal between the body member and the pump cylinder received in the body member. A resilient, ring type sealing means is disclosed which has two annular segments joined throughout their circumference, one of the annular segments being adapted to be urged against the inner lower wall surface of a cylinder received in the body member.
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