Pressure differential sensor apparatus with high-visibility condition indicator
US11199464B2 · kind B2 · utility
0Cited by
2References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 9, 2020 |
| Grant date | Dec 14, 2021 |
| Priority date | — |
| Expiry date | May 20, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L19/083
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus, having: a pressure differential sensor apparatus (100) configured to detect a pressure difference between two locations; a faceplate (102) having a base (104) and a protrusion (106) from the base, the protrusion comprising a light-transmissive perimeter (116) configured to transmit light forward and laterally; and a circuit board (400) having an indicator light (402) mounted thereon and configured to emit light into the light-transmissive perimeter, the indicator light further configured to emit a first color under first pressure difference conditions and a second color under second pressure difference conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.