Abstract: The base of the modular reactor includes a frame which defines an opening into which one of a plurality of interchangeable reaction vessel carrying inserts can be removeably received. Each insert has an array of recesses adapted to receive a different number of reaction vessels of different sizes. The recesses are positioned such that all arrays are suitable for use with a standard automated liquid handier. The frame has fluid flow channels for regulating the temperature of the lower portions of the vessels. A temperature control module can be received over the base to regulate the temperature of the upper portions of the vessels for reflux reactions. The corner radii of the insert and frame opening cooperate to permit the insert to be received in the frame in only one orientation. The walls of the insert are inclined to facilitate removal by a friction fit tool.

Abstract: A bifurcated bracket carries two powder dispensing assemblies. Each assembly includes a powder reservoir and a rotatable screw received within a compliant silicone sleeve. The outer diameter of the screw is slightly larger than the inner diameter of the sleeve such that the screw blade maintains direct contact with the sleeve wall as the screw is rotated. The bracket is sequentially moved to align each assembly with containers in two arrays. Each array of containers is situated in a tray. The trays are manually positioned on independent scales which generate signals that are a function of the sensed weight of each array. To fill each container, the screw in the aligned assembly is rotated at a high rate for an initial period and then at a slower rate. The scales are operational only during the slower rate period. Assembly movement and screw rotation are computer controlled.

Abstract: The base of the modular reactor includes a frame which defines an opening into which one of a plurality of interchangeable reaction vessel carrying inserts can be removeably received. Each insert has an array of recesses adapted to receive a different number of reaction vessels of different sizes. The recesses are positioned such that all arrays are suitable for use with a standard automated liquid handier. The frame has fluid flow channels for regulating the temperature of the lower portions of the vessels. A temperature control module can be received over the base to regulate the temperature of the upper portions of the vessels for reflux reactions. The corner radii of the insert and frame opening cooperate to permit the insert to be received in the frame in only one orientation. The walls of the insert are inclined to facilitate removal by a friction fit tool.

Abstract: A bifurcated bracket carries two powder dispensing assemblies. Each assembly includes a powder reservoir and a rotatable screw received within a compliant silicone sleeve. The outer diameter of the screw is slightly larger than the inner diameter of the sleeve such that the screw blade maintains direct contact with the sleeve wall as the screw is rotated. The bracket is sequentially moved to align each assembly with containers in two arrays. Each array of containers is situated in a tray. The trays are manually positioned on independent scales which generate signals that are a function of the sensed weight of each array. To fill each container, the screw in the aligned assembly is rotated at a high rate for an initial period and then at a slower rate. The scales are operational only during the slower rate period. Assembly movement and screw rotation are computer controlled.