Proximity sensor with zero adjustment
US4059130A · kind A · utility
5Cited by
4References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 26, 1974 |
| Grant date | Nov 22, 1977 |
| Priority date | — |
| Expiry date | Sep 26, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/2278
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A fluidic device having a sensing nozzle remotely mounted from an emitter assembly and communicating with it through a connecting tube. An adjustable nozzle assembly, located within the emitter assembly, is movable with respect to an outlet and aligned orifice to provide a zero level output signal from the outlet for various lengths of connecting tube. The nozzle assembly is also adjustable to provide a range independent zero level output signal for different pressure level sensitivities. A test jack communicates with the outlet to monitor the output signal and provide for adjusting the zero level output signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.