Patent · US Active

Automatic particle or scent tracing to check social distancing in public places

US11486868B2 · kind B2 · utility

0Cited by

6References

19Claims

0Family size

Assignee

NEC Corporation Of America · IL

Inventors

Tsvi LEV · Tel Aviv-Yafo, IL
Yaacov Hoch · Ramat Gan, IL

Key dates

Filing date	Oct 22, 2020
Grant date	Nov 1, 2022
Priority date	—
Expiry date	Dec 17, 2040

Classification

Technology area (CPC A)Human Necessities
CPC primaryA62B23/02
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A kit includes at least one facemask configured to cover a respective user's mouth and nose. The facemask contains at least one layer impregnated with a first chemical. When the facemask covers the respective user's mouth and nose, airborne particles of the first chemical are released from the at least one layer through the user's breathing. A sensor is configured to measure airborne concentration of the first chemical. A processing circuitry is configured to receive outputs of the sensor, to calculate a change in airborne concentration of the first chemical, and to issue a notification when the airborne concentration of the first chemical increases at above a predetermined rate.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.