Level sensor and dispenser
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United States of America Patent
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Dec 26, 2023
Grant Date -
Aug 12, 2021
app pub date -
Mar 12, 2021
filing date -
Sep 15, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
A tissue dispenser, a method, system, and a sensor unit for detecting level of a consumable tissue product (201, 301) in a tissue dispenser (103, 106) located in a washroom. This includes provided a sensor unit utilizing two sensor elements (420, 430) each arranged to measure light reflected from a reflection field located on the tissue product, reflected directly from the tissue product, or measure the absence of the tissue product. Data from the sensor elements are wirelessly transmitted to a server (901) for further handling, such as for instance notification to a janitor in charge of service of the washroom.
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