Fiberoptic pressure gauge
US4387600A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 13, 1981 |
| Grant date | Jun 14, 1983 |
| Priority date | — |
| Expiry date | Apr 13, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L19/08
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The following specification discloses a fiberoptic pressure gauge suitable for use with a tank of compressed gas. In particular, the tank of compressed gas can be utilized by an industrial worker, a fireman, or a diver wherein breathing gas has been stored in a tank to allow for delivery thereof to a user. The pressure within the tank which is indicative of the supply of gas for delivery to a user's mask, is monitored by means of a bourdon tube type of movement that is connected to a shutter overlying a lighting source, such as a light emitting diode (LED). The lighting source is in optical relationship to a plurality of fiberoptic bundles that terminate at a distal end in a plurality of ends that are placed in calibrated relationship to a plurality of numbers indicative of the pressure within the tank. The bourdon tube movement serves to move the shutter overlying the light source to increase or decrease the light as the case may be, to light a greater or lesser number of bundles which correspond to a greater or lesser amount of pressure within the tank, as indicated on the readout. The entire system is lit by a battery and electrical connection connected to the LED's which are co…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.