EP 1195200 A3 20031119 - Pipette with even piston speed
Title (en)
Pipette with even piston speed
Title (de)
Pipette mit vergleichmässigter Kolbengeschwindigkeit
Title (fr)
Pipette avec un piston mouvant à la vitesse uniforme
Publication
Application
Priority
DE 10049507 A 20001006
Abstract (en)
[origin: EP1195200A2] A pipette comprises a piston (4) guided in a cylinder (3); and a conveying piston (18) guided in a conveying cylinder (17). The cross-section surface of the conveying piston is larger than that of the piston (4) or a dosing piston (10) connected to the piston (4) and guided in a dosing cylinder (13). Preferred Features: The pipette further comprises a spring (7) pre-stressing the piston (4) and/or the dosing piston in the direction of a suction hood. An overflow channel (30) is provided in the line from the conveying cylinder to the cylinder (3) and/or dosing cylinder. A throttle valve (28) is arranged in the line from the conveying cylinder to the cylinder (3) and/or dosing cylinder.
IPC 1-7
IPC 8 full level
B01L 3/02 (2006.01)
CPC (source: EP)
B01L 3/0217 (2013.01)
Citation (search report)
- [X] US 3935734 A 19760203 - KEEGAN WILLIAM P
- [A] EP 0737515 A1 19961016 - LABSYSTEMS OY [FI]
- [A] DE 2651333 A1 19780511 - SARSTEDT KUNSTSTOFF
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1195200 A2 20020410; EP 1195200 A3 20031119; DE 10049507 A1 20020411; DE 10049507 B4 20090820
DOCDB simple family (application)
EP 01123092 A 20010926; DE 10049507 A 20001006