ACTUATING SYSYTEM WITH A PLURALITY OF BELLOW PIPETTES

ACTUATING SYSYTEM WITH A PLURALITY OF BELLOW PIPETTES

A pipette (1) includes a dispensing piece (3) and a separately formed and attached discrete bellows piece (5). The dispensing piece includes a dispensing end (7) through which liquid enters or leaves the interior of the dispensing portion and a connecting portion (9) which receives a corresponding c...

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Hauptverfasser: HORNES, ERIK, HOLMBERG, ANDERS
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
TRANSPORTING
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creator HORNES, ERIK
HOLMBERG, ANDERS
description A pipette (1) includes a dispensing piece (3) and a separately formed and attached discrete bellows piece (5). The dispensing piece includes a dispensing end (7) through which liquid enters or leaves the interior of the dispensing portion and a connecting portion (9) which receives a corresponding connection portion (11) at the lower end of the bellows piece. The bellows piece (5) includes a bellows portion (13) having a plurality of circumferentially extending folds at intervals along the axis of the device. The bellows portion defines a closed end wall (17) against which an axial force may be applied to compress the bellows portion. The bellows portion (13) does not extend the entire length of the bellows piece (5). The pipette is arranged such that liquid may enter not only the dispensing piece but also the lower part of the bellows piece in use. The folds of the bellows piece are arranged to avoid liquid being trapped in the folds when the bellows piece is compressed axially.
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subjects CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
TRANSPORTING
title ACTUATING SYSYTEM WITH A PLURALITY OF BELLOW PIPETTES
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