Pipette

Details Pipette Pipette

2005-04-21

2008-09-09

Raevis, Robert R (Department: 2856)

Measuring and testing

Sampler, sample handling, etc.

Capture device

Reexamination Certificate

active

07421913

ABSTRACT:
Pipette having an axially relocatable control button, a pressure sensor, which is integrated into the control button, a lifting rod, coupled with the control button and having a stopping bead, a hollow driving spindle, accommodating the lifting rod and being axially relocatable, a twisting lock, preventing the driving spindle from being twisted, a turnable driving nut having screw thread engagement with the driving spindle, an axial support of the driving nut, an electric driving motor with a motor shaft, a gear between the motor shaft and the driving nut, an electric power supply, an electric control system, connected to the pressure sensor, the electric driving motor and the electric power supply, which provides an electric voltage to the electric driving motor upon a push on the control button which is indicated by the pressure sensor, so that the motor relocates the driving spindle via the gear in the direction of a relocation of the control button by the push, the driving spindle taking the lifting rod along with it on its stopping bead, a plunger, coaxially displaceable with respect to the lifting rod, a cylinder, connected to an opening which leads outward and in which the plunger is sealingly guided, and a plunger spring loading the plunger in the direction of an end of the lifting rod.

REFERENCES:
patent: 4399712 (1983-08-01), Oshikubo et al.
patent: 4519258 (1985-05-01), Jakubowicz
patent: 5389341 (1995-02-01), Tuunanen et al.
patent: 5505097 (1996-04-01), Suovaniemi et al.
patent: 6175369 (2001-01-01), Dyer et al.
patent: 6299841 (2001-10-01), Rainin et al.
patent: 6715369 (2004-04-01), Baba et al.
patent: 2002/0005075 (2002-01-01), Kriz et al.
patent: 2002/0020233 (2002-02-01), Baba et al.
patent: 2003/0074989 (2003-04-01), Magnussen, Jr. et al.
patent: 2004/0149052 (2004-08-01), Jagdhuber
patent: 31 36777 (1982-08-01), None
patent: 103 01 343 (2004-08-01), None
patent: 0576967 (1994-01-01), None
patent: 1439002 (2004-07-01), None
patent: 08-215584 (1996-08-01), None
patent: 0157490 (2001-08-01), None

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