Patent ID: 6890492
Filing Date: 2005-05-10
Classification: B01F,B01J,B01L,C40B,G01K,G01N,Y10T

Abstract:
1. Apparatus for the parallel processing of reaction mixtures, comprising a reactor block having a series of wells therein extending down from an upper surface of the block for containing the reaction mixtures, an upper plate removably secured to said reactor block over said upper surface thereof, said upper plate having openings therein in registry with the wells in the reactor block, stirring mechanisms attached to said upper plate and removable with the upper plate for stirring said reaction mixtures, said stirring mechanisms extending down through the openings in the upper plate and into respective wells, and seals for sealing against leakage through said upper plate openings when the upper plate is secured to the reactor block, each stirring mechanism comprising a drive mounted on said upper plate and a multi-piece spindle rotatable by said drive, said multi-piece spindle having a metal upper spindle portion, a plastic stirrer, and a coupling for releasably coupling the plastic stirrer to the metal upper spindle portion in a position wherein the stirrer extends down into a respective well, said plastic stirrer being removable from said coupling after a mixing operation to permit discard and replacement of the stirrer.