System and method for indicating air pressure within an enclosed space
US11519806B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 1, 2020 |
| Grant date | Dec 6, 2022 |
| Priority date | — |
| Expiry date | May 26, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L13/025
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and method for sensing and indicating air pressure within an enclosed space is described. The system comprises a pressure sensing device and pressure indicator further comprising a housing enabled to house a plurality of electronic devices and having an opening, an elastomeric membrane covering the opening of the housing and capable of flexing inwards and outwards, a light emitting device to provide an illumination and a projector for projecting a positive pressure symbol and a negative pressure symbol. The elastomeric membrane flexes inwards along with a representation of the positive pressure symbol with an illumination of a first color when the pressure within the enclosed space is positive and the elastomeric membrane flexes outwards along with a representation of the negative pressure symbol with the illumination of a second color when the pressure within the enclosed space is negative.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.