Pipette tip
First Claim
1. A pipette tip, which comprises:
- a main body having an upper end, a lower end disposed axially opposite the upper end and a sidewall extending between the upper end and the lower end, the main body having formed therein a bore extending axially therethrough between the upper end and the lower end, the lower end having a bottom surface, the bottom surface having an opening formed through the thickness thereof which is in communication with the axial bore to allow the passage of fluid therethrough, the bottom surface further having at least one groove formed therein, the at least one groove acting to inhibit fluid passing through the opening from flowing towards the outer surface of the pipette tip.
3 Assignments
0 Petitions
Accused Products
Abstract
A pipette tip includes a main body having an upper end, a lower end and a sidewall extending between the two ends. A bore extends axially through the main body between the upper and lower ends. The lower end has a bottom surface in which is formed a central opening that communicates with the axial bore to allow the passage of fluid therethrough. The bottom surface is formed with at least one groove that may be concentrically disposed or spirally disposed about the central opening. The at least one groove acts to inhibit fluid passing through the central opening from at least partially flowing along the outer surface of the sidewall from the central opening toward the upper end of the main body of the pipette tip.
18 Citations
22 Claims
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1. A pipette tip, which comprises:
a main body having an upper end, a lower end disposed axially opposite the upper end and a sidewall extending between the upper end and the lower end, the main body having formed therein a bore extending axially therethrough between the upper end and the lower end, the lower end having a bottom surface, the bottom surface having an opening formed through the thickness thereof which is in communication with the axial bore to allow the passage of fluid therethrough, the bottom surface further having at least one groove formed therein, the at least one groove acting to inhibit fluid passing through the opening from flowing towards the outer surface of the pipette tip. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A pipette tip, which comprises:
a main body having an upper end, a lower end disposed axially opposite the upper end and a sidewall extending between the upper end and the lower end, the main body having formed therein a bore extending axially therethrough between the upper end and the lower end, the lower end having a bottom surface, the bottom surface having an opening formed through the thickness thereof which is in communication with the axial bore to allow the passage of fluid therethrough, the bottom surface further having means for inhibiting fluid passing through the opening from flowing towards the outer surface of the pipette tip. - View Dependent Claims (17, 18, 19, 20, 21, 22)
Specification