Patent
Pipeline leak detector apparatus and method
TLDR
In this paper, a flow meter is provided comprising a parallel combination of a solenoid value and a pressure differential switch connected across the shut-off valve, where the pressure supply pump remains ON during test procedure and pressure on both sides of a closed shutoff valve in the pipeline is maintained equal.Abstract:
A method for detecting leaks in a fluid pipeline where the pressure supply pump remains ON during the test procedure and pressure on both sides of a closed shut-off valve in the pipeline is maintained equal. A novel flow meter is provided comprising a parallel combination of a solenoid value and a pressure differential switch connected across the shut-off valve.read more
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Patent
Line leak detection
Paul Lukas,Daniel F. Gagnon,Daniel Johnson,Christopher D. Farrar,John D. Knight,John J. Gillis +5 more
TL;DR: A flow measuring device for indicating the leak status of a pressurized fluid-carrying line pressurized by a pump includes an electronic leak sensing module connected in fluid communication with the pressurized line and configured for insertion within a detection port of a pump manifold as mentioned in this paper.
Patent
Pressurized piping line leak detector
TL;DR: In this paper, a line leak detector system that requires no existing piping modifiction for installation is presented. But the system consists of a controller and transducer and installs at existing fuel dispensers, connected by a length of electrical cable.
Patent
Pump controller program
TL;DR: In this article, a microprocessor controlled timer is installed in a petroleum service station product dispensing system that includes a pump relay, a pump, a dispenser, and a leak detection monitor.
Patent
Gas leak detection system
TL;DR: In this paper, a gas leak detection system consisting of a flow sensor for detecting the amount of gas flowing through a gas flow passage, a flow signal generator for producing flow signal representing the quantity of gas flow detected by the flow sensor, and a pressure sensor installed in the gas passage at a point upstream of the flow sensors, a pressure signal generator was used to produce a pressure fluctuation value.
Patent
Automatically calibrated pressurized piping leak detector
TL;DR: In this article, a pressure decay leak detection system is calibrated for a particular piping system using a leak mechanism with a known leak rate attached to the piping system, and the system performs a test by sensing decaying pressure in the pipe system, determining a slope of measured pressure decay versus time for an increment of pressure decay, and providing a failure indication if the slope of the observed pressure decay exceeds the acceptable pressure decay profile.
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Patent
High speed leak tester
TL;DR: In this article, a computerized leak tester system for rapidly testing a work piece for fluid leaks comprising a continuously regulated pressure supply, a coupler for connecting the pressure supply to the work piece through a valve such that the work pieces is both pressurized and tested for leaks through the valve.
Patent
Combined flow measuring and valve leakage indicator
TL;DR: In this article, an approach for detecting fluid leakage past a control valve in a system for controlling and measuring the flow of a fluid in a conduit of the type having first and second control valves is presented.
Patent
Leak detection system and method
TL;DR: In this paper, a leak detection system and method of detecting leaks are disclosed for detecting leaks in a dispensing system having a pump, dispenser, conduit connecting the pump and dispenser and a valve to isolate the pump from the dispenser when a fluid is not being dispensed.
Patent
Battery terminal leak detector
TL;DR: A leak detector including a head with a resilient lip that is fitted closely around a battery container terminal assembly that is connected by a line to a source of vacuum is described in this paper, where a pair of valves in the lines are opened to evacuate the head and pull the lip into sealing engagement with the periphery of the terminal assembly.
Patent
Detection of leakage from liquid-transporting pipeline
TL;DR: In this paper, a leakage from a liquid-transporting pipeline containing a liquid to be transported and being blocked into at least one block by block valves is detected by a system comprising a piping connected to the pipeline in parallel with anyone of block valves forming one of blocks in the pipeline, the piping being capable of passing the liquid to or from the block, a means for supplying liquid to the block under a desired pressure through the piping, thereby maintaining the pressure of the liquid within the block as constant as possible.