Disposable pipette tip

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4748859
SERIAL NO

07022798

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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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.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
RAININ INSTRUMENT LLC5400 HOLLIS ST EMERYVILLE CA 94608

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Magnussen, Jr Haakon T Orinda, CA 26 886
Watson, Walter S San Leandro, CA 2 154

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