Gas Leak Detector Abstract A sensor assembly for a halogenated gas leak detector is characterized by having a porous ceramic spacer element positioned around a central electrode and around portions of the turns of a helical heater coil in order to ho...
Gas Leak Detector Abstract A sensor assembly for a halogen gas leak detector characterized by including a tubular, porous, high purity Alumina (Al.sub.2 O.sub.3) element for supporting electrode and heater components in spaced-apart relationship rela...
Gas Leak Detector Abstract A gas leak detector incorporated in a rotary valve intended to be mounted in a gas system adjacent the source of gas, the detector valve having a first position permitting flow from the source into the system, and a second...
Gas Leak Detector Abstract Methods are described for making an improved sensing element and an improved sensor assembly for a halogen gas leak detector. The method of making an improved sensing element includes positioning at least one porous ceramic...
Gas Leak Detector Abstract A water sensitive probe valve shuts off upon detecting water to protect a gas leak detector. A barrel and a cap of the probe valve secure together through a coupling ring and house a normally open valve that is spring biase...
Gas Leak Detector Abstract A viewer for improving the visibility of Halide gas leak detectors, and comprising an observation tunnel embracing the flame shield of the detector at one closed end, open at the other end for closure by the face of the per...
Gas Leak Detector Abstract A water sensitive cutoff valve shuts off upon detecting water to protect a gas leak detector. A transparent case threads into a base and houses a normally open valve mechanism. The valve includes a tapered post with an exit...
Gas Leak Detector Abstract Disclosed is a gas leak detector comprising; a tubular gas-sensitive element defining openings at both ends thereof, one end being a gas inlet and the other end a gas outlet, and made of an oxygen-ion conductive solid elect...
Gas Leak Detector Abstract A method and apparatus for measuring the presence of trace amounts of a halogen gas in ambient air by changes in conductivity of a negative corona in an electrical sensing gap due to the presence therein of such electro-neg...
Gas Leak Detector Abstract A noble gas leak detector is provided using a non-evaporable getter pump to remove active gases but not noble gases during leak detection. The vacuum system is constructed of all-metal valves, metal connection devices and m...
Gas Leak Detector Abstract A process of calibrating an ultrasensitive noble gas leak detector using a radioactive alpha source, such as americium 241, comprising accumulating helium molecules from the radioactive alpha source in an enclosed volume fo...
Gas Leak Detector Abstract The invention provides a tracer-gas leak detector including a secondary pumping set, a sole primary pumping set, a mass spectrometer connected to the inlet of the secondary pumping set, the outlet of the secondary pumping s...
Gas Leak Detector Abstract A tracer-gas leak detector includes an analysis unit and a primary pump whose inlet is connected to an inlet orifice of the detector via a first pipe equipped with a first valve. A secondary pumping set has an inlet connect...
Gas Leak Detector Abstract A gas leak detector that operates on the corona principle having a sensing tip with a pair of electrodes across which a high voltage is provided to generate a corona current through the electrodes. The sensing tip includes...
Gas Leak Detector Abstract A refrigerant gas leak detector for detecting the location of leaks of refrigerant gas such as halogen has a sensing tip with a pair of electrodes across which a relatively high voltage is generated to cause a corona curren...
Gas Leak Detector Abstract A valve stem gas leak sensor or detector configured to surround a possibly leaking petrochemical or like flow line valve stem and provide for external monitoring equipment an electrical resistance related to the amount of h...
Gas Leak Detector Abstract A tracer gas leak detector includes a mass spectrometer delivering a signal q proportional to the partial pressure of the tracer gas in the spectrometer, wherein the detector further includes apparatus for obtaining from th...