US 6,982,063 B2
Automated pipetting system
Marc F. Hamel, Hudson, N.H. (US); Greg Mathus, Concord, Mass. (US); Richard Cote, Sudbury, Mass. (US); Yoshio Maeda, Ibaraki (Japan); and Chikashi Ohtomo, Tokyo (Japan)
Assigned to Matrix Technologies Corp, Hudson, N.H. (US); and Cosmotec Co., Ltd., Tokyo (Japan)
Filed on May 25, 2001, as Appl. No. 9/865,404.
Prior Publication US 2002/0176803 A1, Nov. 28, 2002
Int. Cl. B01L 3/02 (2006.01); G01N 1/10 (2006.01); G01N 21/00 (2006.01)
U.S. Cl. 422—100 17 Claims
OG exemplary drawing
 
1. A liquid dispenser comprising:
a housing;
a dispensing head comprising a plurality of chambers and associated pistons for withdrawing a measured amount of a liquid from a source and expelling another measured amount of the liquid in a first direction from said plurality of chambers and into the wells of a plate;
apparatus for moving each piston within its associated chamber; and
slideways disposed on the housing for supporting the dispensing head and extending in a second direction generally perpendicular to the first direction, said dispensing head being unattached to the slideways to allow said dispensing head to be slidable into and out of the housing along the slideways in said second direction.