The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 09, 1998
Filed:
Nov. 01, 1995
Applicant:
Inventors:
Anselm Sickinger, Greifensee, CH;
Johannes Konrad Balmer, Wetzikon, CH;
Assignee:
Tecan AG, Hombrechtikon, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
436180 ; 436179 ; 422100 ; 422103 ; 7386401 ; 7386332 ; 7386344 ; 7386413 ;
Abstract
A device for automated pipetting of small volumes of liquid has a pipetting needle, a diluter having a liquid output with a syringe and a valve, the syringe including a piston and a piston drive. Tubing interconnects the needle and the liquid output of the diluter, the tubing and diluter containing a substantially incompressible liquid. An impulse generator is connected in the device and coupled to the incompressible liquid in the tubing for generating and applying directly to the liquid in the tubing a mechanical impulse force of at least 0.01 N.multidot.s for separating liquid from the needle.