发明名称 |
Dispenser pump |
摘要 |
A dispenser pump has pump chamber (34) whose volume is variable to draw up or discharge material, by the axial movement of a cup (25) on a stationary hollow stem (12). The seal (16) between them slides on an inner wall of the cup. A collector (30) at the lower end of the cup causes any material leaked past the seal to be guided inwardly to apertures (33) where it may drop to a body part (9) and pass via apertures (11') to a container (1) of the material.
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申请公布号 |
US4739904(A) |
申请公布日期 |
1988.04.26 |
申请号 |
US19860929475 |
申请日期 |
1986.11.12 |
申请人 |
THE ENGLISH GLASS COMPANY LIMITED |
发明人 |
SPENCER, JEFFREY W.;WASS, ANTHONY |
分类号 |
B05B11/00;(IPC1-7):B67D5/00 |
主分类号 |
B05B11/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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