Measuring and testing – Sampler – sample handling – etc. – Capture device
Patent
1992-01-09
1994-10-18
Noland, Tom
Measuring and testing
Sampler, sample handling, etc.
Capture device
7386417, 7386418, B01L 302, G01N 114
Patent
active
053557387
ABSTRACT:
A positive-displacement pipette is provided comprising a longitudinally extending body portion having a bore passing therethrough, a hand grip portion disposed at one end of the body, and a tip portion coupled to and coaxially extending from the hand-grip portion. A cylinder is employed connected to and extending coaxially from the tip portion of the pipette, wherein the cylinder has a jet at its bottom end and a piston rod extending through the cylinder to the jet. A gripping arm in the form of a slidable sleeve is movably supported within the bore of the body and is adapted for gripping the piston rod by force applied to the slidable sleeve to thereby cause the sleeve to attach itself to the piston rod by friction. A device located on the hand grip portion of the body is provided for applying force to the slidable sleeve and hence to the piston rod extending through the cylinder to the jet.
REFERENCES:
patent: 3244009 (1966-04-01), Tietje et al.
patent: 3757585 (1973-09-01), Heller et al.
patent: 3830108 (1974-08-01), Spong
patent: 4141250 (1979-02-01), D'Autry
patent: 4165646 (1979-08-01), Shapiro
patent: 4362064 (1982-12-01), d'Autry
patent: 4466298 (1984-08-01), Tervamaki et al.
patent: 4474071 (1984-10-01), d'Autry
patent: 4567780 (1986-02-01), Opperlander et al.
patent: 4616514 (1986-10-01), Magnussen, Jr. et al.
patent: 4967604 (1990-11-01), Arpagus et al.
Labsystems Oy
Noland Tom
LandOfFree
Positive-displacement pipette does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Positive-displacement pipette, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Positive-displacement pipette will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2364694