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:
Apr. 14, 2020
Filed:
Jan. 15, 2019
Walmart Apollo, Llc, Bentonville, AR (US);
Steven Jackson Lewis, Bentonville, AR (US);
Matthew Dwain Biermann, Fayetteville, AR (US);
Kevin Matthew Charles, Bentonville, AR (US);
Walmart Apollo, LLC, Bentonville, AR (US);
Abstract
A technique for detecting spills is disclosed. A number of electrodes within a portion of a surface are connected to a resistance meter. The resistance meter detects a spill by measuring a change in resistance between two or more electrodes when a fluid is spilled over the two or more of the electrodes. The location of the spill can also be determined based on a known location for each of the electrodes. The size of the spill can further be determined based on a number of electrodes which measured a change in resistance due to the spilled fluid.