Detection of leaks in pipelines
October 9, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesAcoustic method for detecting leaks from submerged pipelines Method and means of passive detection of leaks in buried pipes Method of detecting a leakage of fluid Signal processor Acoustic emission leak source location 5117676 Acoustic emission leak simulator Temperature compensated methods for detection of leaks in pressurized pipeline systems using gas controlled apparatus Method for locating leaks in a fluid pipeline and apparatus therefore Patent #: 5272646 InventorAssigneeApplicationNo. 959143 filed on 10/09/1992US Classes:702/51, Leak detecting73/40.5A, Using acoustic detectors73/592, Fluid, fluid leak, or pipe flaw detection702/54Acoustic or vibration sensorExaminersPrimary: Voeltz, Emanuel T.Assistant: Stamber, Eric W. Attorney, Agent or FirmInternational ClassesG01M 003/24G06G 007/57 AbstractAn apparatus and process for determining the existence and location of a leak in an underground pipe, comprises a plurality of remote acoustic transmission sensor units distributed along the pipe and each containing equipment for analyzing acoustic signals from the pipe. The equipment includes a mechanism for identifying acoustic features of the acoustic signals which distinguish the acoustic signals of a leak from ambient acoustic signals. A control unit is connected to each of the remote units and includes additional equipment for further analyzing the signals to determine the proximity of the signal to a particular remote unit and, using the amplitude of the signal and the transmission characteristics of the pipe, determining the location of the leak.Other References
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