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:
Nov. 30, 1982
Filed:
Sep. 12, 1980
Applicant:
Inventors:
Werner Lessnig, Cologne, DE;
Gunter Metz, Cologne, DE;
Willi Spiegel, Leverkusen, DE;
Manfred Faust, Bergisch Gladbach, DE;
Gunter Junkers, Leverkusen, DE;
Assignee:
Agfa-Gevaert Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
73 644 ;
Abstract
An apparatus for automatically determining the surface tension by the stalagmometer principle using a pipette containing a test volume, having a drop face at its lower end and is provided with three light barriers. The three light barriers are connected to an evaluation circuit which counts the number of whole drops and also determines the fractions of whole drops pertaining to the test volume.