Sheet product level sensor calibration and indication systems and methods
US10874265B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 4, 2018 |
| Grant date | Dec 29, 2020 |
| Priority date | — |
| Expiry date | Oct 8, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47K2010/389
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A sheet product (e.g., napkin) dispenser may include an example calibration system and method for a product depletion curve for accurately determining a product level. An example sheet product dispenser includes a housing, a roll holder, a dispensing mechanism, a sensor, and a controller. The sensor is configured to emit a signal toward the product roll and receive a return signal. The controller is configured to receive a calibration product roll and operate the sensor to emit the signal and receive the return signal. The controller determines a brightness value of the return signal and determines a calibration value associated with the determined brightness value. The determined brightness value is within a range of brightness values associated with the calibration value. The controller adjusts a product depletion curve based on at least the determined calibration value and the determined brightness value. Additionally, example product level notification systems are provided herein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.