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:
May. 05, 2020
Filed:
Dec. 01, 2017
Applicant:
Illinois Tool Works Inc., Glenview, IL (US);
Inventors:
Davide Bordignon, Travedona, IT;
Marco Sclip, Sumirago, IT;
Assignee:
Illinois Tool Works Inc., Glenview, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01F 23/20 (2006.01); G01F 23/292 (2006.01); D06F 39/02 (2006.01);
U.S. Cl.
CPC ...
G01F 23/292 (2013.01); G01F 23/2922 (2013.01); G01F 23/2924 (2013.01); G01F 23/2927 (2013.01); D06F 39/02 (2013.01); D06F 39/022 (2013.01);
Abstract
A liquid level sensing system provides a removable reservoir incorporating a reflective surface that can be interrogated by a stationary optical sensor in a receptacle receiving the removable reservoir. The optical sensor may detect the presence of the liquid within the reservoir without connection to the reservoir simplifying the process of making the reservoir removable while still allowing sensing of its contents. By aligning the optical axis with the insertion axis of the reservoir sensitive optical alignment problems are minimized.