发明名称 |
FILTER VIAL |
摘要 |
A filter vial and piston are provided where the vial has a cylindrical wall with a closed bottom and open top and with the hollow, tubular piston therein. The piston has a distal end covered by a cup having a proximal cup seal extending outward to engage the walls of the vial to form a fluid tight seal with the vial during use. The distal end of the piston has a piston flange extending outwardly and located adjacent a recess in the piston so the cup forms a snap fit over the piston flange and extends into the recess. The piston flange causes the cup to bulge sufficiently outward to form a fluid tight seal with the vial during use. A filter is placed in the bottom of the cup and abuts an inwardly extending lip on the cup. The filter is held against the lip by a piston support at the distal end of the piston. A cup support at a distal end of the cup also helps support the filter. |
申请公布号 |
US2010300959(A1) |
申请公布日期 |
2010.12.02 |
申请号 |
US20100856324 |
申请日期 |
2010.08.13 |
申请人 |
SCIENTIFIC PLASTIC PRODUCTS, INC. |
发明人 |
ELLIS SAMUEL A.;HINGORANI KISHAN G. |
分类号 |
B01D35/34;B01L99/00;B23P11/00 |
主分类号 |
B01D35/34 |
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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