Chemical apparatus and process disinfecting – deodorizing – preser – Control element responsive to a sensed operating condition
Patent
1987-04-28
1989-09-05
Marcus, Michael S.
Chemical apparatus and process disinfecting, deodorizing, preser
Control element responsive to a sensed operating condition
422 63, 436 54, 436180, 128760, 128763, 7386414, G01N 110, B01L 302
Patent
active
048636959
ABSTRACT:
A pipette assembly for automatic pipetting machines including a pipette tip and a pipette tip holder having a mandrel and a seal. The mandrel includes a plug portion which is adapted to engage a top end portion of the pipette tip, and a cylindrical seat portion proximate its bottom end. The seal is a unitary, resilient member having a cylindrical base portion, an upwardly flaring skirt portion, and an opening receptive to the seat portion of the mandrel. An inner surface of the base portion of the seal is provided with a pair of sealing ribs, one of which serves as a pivot for the skirt portion.
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Hewlett--Packard Company
Kummert Lynn M.
Marcus Michael S.
Sabath Robert P.
Wong Edward Y.
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