The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 14, 1983
Filed:
Apr. 13, 1981
Max L Kranz, La Habra, CA (US);
U.S.D. Corp, Santa Ana, CA (US);
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.