A compact, lightweight apparatus for introducing a measured amount of liquid into receptacles positioned in a microtiter plate through disposable pipettes loaded in a sealed manner on the front end of dispensing air cylinders positioned in the apparatus. The pipettes, corresponding in number to the number...http://www.google.ca/patents/US5497670?utm_source=gb-gplus-sharePatent US5497670 - Liquid dispensing apparatus including means for loading pipette tips onto liquid dispensing cylinders and maintaining the loading force during the apparatus operation cycle
