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:
Mar. 19, 2019
Filed:
Aug. 10, 2017
Applicants:
Hannu Harjunmaa, Holden, MA (US);
Enni Harjunmaa, Holzgerlingen, DE;
Inventors:
Hannu Harjunmaa, Holden, MA (US);
Enni Harjunmaa, Holzgerlingen, DE;
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
G01N 21/51 (2006.01); G01N 21/49 (2006.01); G01N 21/59 (2006.01);
U.S. Cl.
CPC ...
G01N 21/51 (2013.01); G01N 21/49 (2013.01); G01N 21/59 (2013.01); G01N 2201/0221 (2013.01); G01N 2201/0662 (2013.01);
Abstract
A nephelometer for determining the turbidity of a body of fluid in which a light beam is directed as an angled beam through the body and two light detectors measure the intensity of light scatter at two points in the beam. The two measurements are divided and scaled, and then the result is logarithmically amplified and displayed as the turbidity.