Disposable pipette tip

Details Disposable pipette tip Disposable pipette tip

1987-03-06

1988-06-07

Noland, Tom

Measuring and testing

Sampler, sample handling, etc.

Capture device

7386414, G01N 114

Patent

active

047488590

ABSTRACT:
A disposable pipette tip member having three inner coaxial annular sealing bands spaced axially from an open proximal end for receiving a conical pipette tip mounting shaft. The first two sealing bands and adjacent valley regions of the tip member are relatively resilient and are shaped such that the two sealing bands simultaneously engage, guide and laterally support the pipette shaft as it enters the tip member to form annular fluid-tight seals with the shaft. The third band is relatively rigid and upon engagement with the shaft, forms a third annular fluid-tight seal and a controllable stop for the shaft such that the tip member is seated on the shaft adjacent the pipette tip ejector mechanism.

REFERENCES:
patent: 1634183 (1927-06-01), Gervais et al.
patent: 3732734 (1973-05-01), Avakian
patent: 4072330 (1978-02-01), Brysch
patent: 4362064 (1982-12-01), d'Autry
patent: 4679446 (1987-07-01), Sheehan et al.

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