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:
Apr. 22, 2003
Filed:
Apr. 27, 2000
Applicant:
Inventors:
Karl-Heinz Mann, Weilheim, DE;
Stephan Sattler, Starnberg, DE;
Assignee:
Roche Diagnostics GmbH, Mannheim, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01L 3/02 ; G05B 1/00 ; G05D 9/00 ; G01N 1/10 ; A01K 6/304 ;
U.S. Cl.
CPC ...
B01L 3/02 ; G05B 1/00 ; G05D 9/00 ; G01N 1/10 ; A01K 6/304 ;
Abstract
The invention concerns a liquid transfer device for an analysis apparatus with a liquid transfer cannula ( ) and a capacitive liquid level detector to detect the immersion of the liquid transfer cannula ( ) in an analysis liquid contained in a vessel. To reliably check if the liquid transfer cannula ( ) is submerged in the analysis liquid or immersed for example in foam it is proposed additionally that resistance is measured by a measurement section ( ) in the liquid transfer cannula ( ).