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. 24, 2020
Filed:
Aug. 29, 2017
Delaware Capital Formation, Inc., Wilmington, DE (US);
Terry Tincher, Lebanon, OH (US);
Delaware Capital Formation, Inc., Wilmington, DE (US);
Abstract
Systems, methods, and software program products for detecting an out-of-product condition in a chemical dispensing system. An optical sensor includes a photodetector and a light source configured to generate a beam of light. The light source is positioned such that the beam of light is incident on a supply line at an oblique angle. The supply line displaces the beam of light in dependence on the refractive index of a medium in the supply line. The photodetector is positioned so that it is in the optical path of the displaced beam of light when the refractive index of the of the medium in the supply line is indicative of one of a wet state or a dry state. A detection module receives an electrical signal from the photodetector and determines if the out-of-product conditions exists base thereon.