Measuring and testing – Fluid pressure gauge – Combined
Patent
1981-04-13
1983-06-14
Woodiel, Donald O.
Measuring and testing
Fluid pressure gauge
Combined
73705, 73742, 350 9624, G01L 704
Patent
active
043876005
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 connected by means of a switch means that can be located at the readout or any other location for intermittent lighting operation. The pressure gauge can also be used to monitor all types of fluid pressures in gases and liquids, such as in fluid storage tanks and gas generating equipment for the production of industrial and medical gases.
Bethel George F.
Bethel Patience K.
U.S.D. Corp
Woodiel Donald O.
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