Pipette device
First Claim
Patent Images
1. A multiple pipette device comprising:
- a plurality of pipette tubes having upper and lower ends,means for holding the pipette tubes together, anda hydrophobic filter secured to the top of each pipette tube to limit the upward movement of an aqueous liquid in the tube to provide for filling the tube with a predetermined amount of aqueous liquid while permitting the passage of a gas through the filter.
1 Assignment
0 Petitions
Accused Products
Abstract
A pipette device comprises one or more pipette tubes. Hydrophobic filter paper secured to each tube limits the upward movement of an aqueous liquid in each tube to provide for a predetermined amount of liquid in each tube. The device can be adapted to be connected to a manifold for alternately applying a vacuum and pressure to the pipette tubes through the filter paper. Alternatively it may have, as an integral part thereof, a manifold for the same purpose.
157 Citations
13 Claims
-
1. A multiple pipette device comprising:
-
a plurality of pipette tubes having upper and lower ends, means for holding the pipette tubes together, and a hydrophobic filter secured to the top of each pipette tube to limit the upward movement of an aqueous liquid in the tube to provide for filling the tube with a predetermined amount of aqueous liquid while permitting the passage of a gas through the filter. - View Dependent Claims (2)
-
-
3. A multiple pipette device comprising:
-
a pipette tray having a plurality of integral depending pipette tubes, and a hydrophobic filter sheet overlying and secured to the tops of the plurality of pipette tubes to limit the upward movement of an aqueous liquid in the tubes to provide for filling the tubes with a predetermined amount of aqueous liquid while permitting the passage of a gas through the tubes and the filter sheet. - View Dependent Claims (4, 5, 6, 8, 9, 10, 11, 12, 13)
-
-
7. A multiple pipette device comprising:
-
a plurality of pipette tubes having upper and lower ends, means for holding the pipette tubes together, a hydrophobic filter secured to the top of each pipette tube to limit the upward movement of an aqueous liquid in the tube to provide for filling the tube with a predetermined amount of aqueous liquid while permitting the passage of a gas through the filter, and means forming a manifold above said pipette tubes and in fluid communication with said tubes, said manifold being adapted to be connected to a source of vacuum and a source of pressure.
-
Specification