Seal-free pipette device

Details Seal-free pipette device Seal-free pipette device

B - Operations, Transporting

01

L

222/2

B01L 3/02 (2006.01)

Patent

CA 1079235

SEAL-FREE PIPETTE DEVICE ABSTRACT A method and apparatus for measuring a predetermined relatively small volume of liquid from a supply liquid and subsequently dispensing that volume of liquid. A long hollow tube having one end sealed is connected at the other end to an open-ended probe. The long tube is curved into at least one C-shaped segment and is generally rigid along its entire curved length. With the probe tip inserted into the supply liquid, the curved tube is flexed about an axis normal to the plane in which it lies, thereby decreasing the cross-sectional area of the tube. Since the tube is generally rigid along its entire curved length, this flexure of the tube increases the internal volume of the tube thereby reducing the pressure within the tube and withdrawing liquid from the supply liquid into the probe. The amount of liquid withdrawn into the probe is determined by the amount of flexure of the tube. Flexure of the tube in the opposite direction causes the cross-sectional area of the tube to return to its original size thereby decreasing the internal volume of the tube and increasing the pressure within the tube which forces the liquid out of the probe.

317625

Affiliated with

Also associated with

Rating

Seal-free pipette device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Seal-free pipette device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Seal-free pipette device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-674245