DISPENSING APPARATUS

摘要

A pin support assembly (30) includes a pin support frame (32) having a plurality of apertures for supporting an array of pins (34) for dispensing fluids. The pins (34) are supported for longitudinal or "floating" movement to prevent damage to the pins. An actuation assembly (36) engages an end of each of the pins to ensure that the pins are properly seated in the support frame (32) in a planar fashion. The actuation assembly (36) engages the pins as the pins (34) move relatively toward a head block (26) and disengages the pins as the pins move relatively away from the head block (26).