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:
Aug. 29, 1978
Filed:
Sep. 24, 1976
Applicant:
Inventor:
Wolfgang Eisert, Hanover, DE;
Assignee:
Gesellschaft fur Strahlen- und Umweltforschung mbH, Munchen, Neuherberg, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ; G01D / ; G01N / ;
U.S. Cl.
CPC ...
356102 ; 2502 / ; 356103 ;
Abstract
Apparatus for counting and classifying particles and including a laser for producing a laser beam, a flow nozzle for hydrodynamically focussing a stream of such particles and directing the focussed stream to intersect the laser beam, a focussing system causing the laser beam to have a diameter which, at the point of intersection with the particle stream, is no greater than the width of the particles, and a detector disposed to receive the laser radiation transmitted by the particles as they pass through the laser beam.