Hand-held pipetter

Details Hand-held pipetter Hand-held pipetter

1978-02-09

1980-04-01

Swisher, S. Clement

Measuring and testing

Measuring vessel

B01L 302

Patent

active

041955269

ABSTRACT:
A pipetter for drawing fluid into capillary tubes and the like. A capillary tube is forced into an adapter coupled to one end of a vented, flexible tube. A compression wheel rides in a guideway adjacent the tube, and is rolled to continuously vary the point at which the tube is compressed in the manner of a peristaltic pump. Manual rolling of the wheel away from the capillary tube produces sufficient suction in the tube to cause liquid to be drawn into it. The pumping action is reversible in that rolling the wheel back toward the capillary tube will cause fluid to be expelled. Provision is made to prevent undesirable "compression set" as a result of long term static of the flexible tube during periods of non-use.

REFERENCES:
patent: 2866340 (1958-12-01), Goldberg
patent: 2960868 (1960-11-01), Price
patent: 3297558 (1967-01-01), Hillquist
patent: 3502095 (1970-03-01), Grensberg et al.

Affiliated with

Also associated with

Rating

Hand-held pipetter does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1308387