Hardware to determine when a diaper needs to be changed and provide electronic notification
US10028865B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 13, 2016 |
| Grant date | Jul 24, 2018 |
| Priority date | — |
| Expiry date | Jun 13, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01M2004/028
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A moisture-sensitive device is provided that includes a fluid-sensitive battery. Exposure of the battery to urine or some other fluid causes the battery to provide a voltage that can be used to power a transmitter. The transmitter can then provide a wireless transmission indicative of the battery having been exposed to the fluid. This moisture-sensitive device can be provided in a diaper and transmissions produced by the device can be detected using a smart phone or other device and used to indicate to a user that the diaper has been soiled. By powering the transmitter using the fluid-sensitive battery and storing the battery in a dry state, such a device can be stored for a protracted period of time before use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.