Sheet product dispenser with product level indicator calibration
US10506901B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2018 |
| Grant date | Dec 17, 2019 |
| Priority date | — |
| Expiry date | Jun 22, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47K2010/3693
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A sheet product dispenser is provided including a housing including a roll holder configured to receive a product roll, a dispensing mechanism configured to dispense a portion of the sheet product from the product roll, a sensor configured to emit a signal toward the product roll and receive a reflection of the signal from a surface of the product roll, and a controller. The controller is configured to receive an indication of replacement of the product roll, determine a time-of-flight of the signal, and determine an expected time-of-flight (or corresponding distance of travel) of a theoretical signal to a theoretical full product roll. The controller is further configured to compare the time-of-flight (or a corresponding distance of travel) of the signal to the product roll to the expected time-of-flight or distance, and adjust a product depletion curve based on the comparison.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.