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:
Jul. 30, 2019
Filed:
Oct. 21, 2014
Applicant:
Illinois Tool Works Inc., Glenview, IL (US);
Inventors:
Marco Sclip, Sumirago, IT;
Davide Bordignon, Travedona Monate, IT;
Assignee:
Illinois Tool Works Inc., Glenview, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 21/53 (2006.01); D06F 39/00 (2006.01); G01N 21/85 (2006.01); G01N 21/59 (2006.01); G01N 21/41 (2006.01); A47L 15/42 (2006.01); D06F 33/02 (2006.01);
U.S. Cl.
CPC ...
G01N 21/532 (2013.01); D06F 39/004 (2013.01); G01N 21/41 (2013.01); G01N 21/534 (2013.01); G01N 21/59 (2013.01); G01N 21/5907 (2013.01); G01N 21/8507 (2013.01); A47L 15/4297 (2013.01); D06F 33/02 (2013.01); D06F 2202/02 (2013.01); D06F 2204/04 (2013.01); D06F 2204/08 (2013.01); G01N 2201/062 (2013.01); G01N 2201/0638 (2013.01);
Abstract
A multisensor employs an optical system that is modified by the index of refraction of fluid passing between a light emitter and light detector to successfully distinguish between air and water (of any turbidity) and between water of different turbidity values. The optical system may employ lenses contacting the fluid to change their focal length and thus to focus and defocus light on the light detector depending on an index of refraction of the fluid.