发明名称 |
Method of making a multiple pipette sampler system |
摘要 |
A method of making a pipette sampler system for removing and transferring a plurality of liquid samples includes the step of thermoforming a plurality of identical pipettes in a first thin PVC plastic sheet utilizing a first precision die. A concave housing including a plurality of stiffening depressions and a skirt portion possessing a peripheral sealing edge is thermoformed from a second thin PVC plastic sheet utilizing a second die. The housing and pipette sheet are joined by dielectric heat sealing forming a manifold communicating with each pipette, with the peripheral sealing edge and each of the stiffening depressions heat welded to the pipette sheet, forming an inflexible rigid monocoque structure. A filling tray is thermoformed from a third thin PVC plastic sheet utilizing a third die. A sealing washer is sealed to a top surface of the housing, surrounding an aperture formed through a top surface of the housing and communicating with the manifold. The sealing washer provides a sealing surface for attachment of an actuator which selectively provides a vacuum in the manifold to draw liquid into the pipettes from the filling tray.
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申请公布号 |
US5348606(A) |
申请公布日期 |
1994.09.20 |
申请号 |
US19920950967 |
申请日期 |
1992.09.23 |
申请人 |
HANAWAY, RICHARD W.;HRUDICKA, JAMES |
发明人 |
HANAWAY, RICHARD W.;HRUDICKA, JAMES |
分类号 |
B01L3/02;G01N35/00;G01N35/10;(IPC1-7):B29C51/00;B29D22/00;B65D47/18 |
主分类号 |
B01L3/02 |
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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