Patent ID: 6328933
Filing Date: 2001-12-11
Classification: B01L

Abstract:
A reusable pipette-tip rack comprising:upper and lower pipette tip organizing trays, each having an array of pipette tip receiving holes extending through a rigid, horizontal surface of said trays, and rigid, vertically extending side members joined at contiguous edges with said horizontal surface;said upper and lower trays are joined along a terminal edge, opposite said contiguous edges, of said vertical side members, and molded together to form a closed, rigid box with a central cavity, and said horizontal surfaces of said upper and lower trays and said vertically extending side members define and form the perimeter of the central cavity;wherein pipette tips are vertically loaded into said central cavity by inserting from both upper and lower trays of said box;and wherein a centerline of each row of pipette-tip receiving holes in each said array in said horizontal surface of said trays is off-set sideways from existing, standard spacing between rows of holes, whereby rows of pipette tips extending downward into said central cavity from said upper pipette tip organizing tray are nested in a free space between adjacent rows of tips extending upward into said central cavity from opposing said lower tray;and each of said upper and lower trays having a cover that can support the entire weight of the pipette-tip rack when said rack is inverted.