Liquid dispensing assembly frame

摘要

Various techniques for dispensing liquids are disclosed herein. In one embodiment a dispenser retention apparatus includes a frame. The frame includes a top surface configured to retain a liquid dispensing assembly. The frame also includes a bottom surface opposite the top surface. The bottom surface includes a first channel extending from a first lateral edge of the frame to a droplet passage between the top and bottom surfaces. The first channel is configured to allow a light beam introduced to the frame at the first lateral edge to intersect a droplet in the passage.

主权项

1. A liquid dispensing device comprising:
a carrier frame to retain a plurality of titration head assembly (THA) modules; and at least two THA modules, each THA module comprising;
a titration head assembly comprising:
an array of liquid droplet dispensers for dispensing individual liquid droplets;a corresponding array of electrical connections for driving said array of liquid droplet dispensers with a dispensing instrument separate from said THA module; anda reservoir on said THA module for receiving a supply of liquid and providing that liquid to said array of liquid droplet dispensers for dispensing; anda frame to support each titration head assembly, wherein the frame comprises:
a plurality of lateral edges;an opening through which the individual liquid droplets pass; andan inlet channel formed in a bottom surface of said frame that extends from one lateral edge of said frame to said opening in said frame and an outlet channel that extends from the opening in the frame to another lateral edge of the frame, wherein the inlet channel and outlet channel are perpendicular to the opening in the frame;a light source;at least one light collector, wherein as the individual liquid droplets pass the inlet and outlet channels the droplet scatters light from the light source which is collected by the light collector via the inlet and outlet channels in the frame;
said carrier frame comprising at least two places, each place being configured to support one of said at least two THA modules, each place comprising an opening through which said supported one of said at least two THA modules can dispense corresponding liquid droplets to containers positioned beneath the carrier frame.