Liquid dispensing apparatus having means for loading pipette tip

Details Liquid dispensing apparatus having means for loading pipette tip Liquid dispensing apparatus having means for loading pipette tip

1996-11-18

2000-09-12

Williams, Hezron

Measuring and testing

Sampler, sample handling, etc.

Capture device

7386332, 7386417, B01L 302

Patent

active

061160997

ABSTRACT:
Fluid dispensing apparatus having a loading/stripping plate movable by vertical shafts connected thereto and having a pair of pins on its interior surface for engagement with slots formed on the upper edges of a pipette tray carrier. A standard pipette tip box, with pipette tips therein, is positioned within the tray carrier. When the dispensing apparatus is moved into position on a table about the tray carrier, the loading/stripping plate moves downwardly to engage the tray carrier. The loading/stripping plate is then moved upwardly causing the pipette tips to engage corresponding dispenser cylinders supported in a cylinder plate connected to the shafts. After the pipette tips are loaded to the cylinders, the stripping plate moves downwardly, stripping the pipette tips from the pipette box and returning the tray carrier to the table. The stripper plate includes box strippers to push the box away from the pipette tips that are fixed to the cylinders during the loading cycle and a progressively thicker recess on its bottom surface which allows the pipette tips to be progressively stripped from the cylinders during the unloading cycle.

REFERENCES:
patent: 4555957 (1985-12-01), Frankel et al.
patent: 4565100 (1986-01-01), Malinoff
patent: 4936152 (1990-06-01), Aldred
patent: 5226462 (1993-07-01), Carl
patent: 5497670 (1996-03-01), Carl
patent: 5736105 (1998-04-01), Astle
patent: 5827745 (1998-10-01), Astle

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