Title:
DEVICE FOR INSPECTING PIPELINE OF CAST IRON PIPES
Document Type and Number:
Japanese Patent JPS51144689
Kind Code:
A
Abstract:
A pipeline pig inspection device having a plurality of pressure chambers for detecting pipeline leaks and eliminating erroneous indications of leaks caused by obstructions within the pipeline, significant changes in pipeline diameter, and minor fluid flows through the pig which are not caused by leaks.
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Inventors:
RUBII SHII BIIBAA
Application Number:
JP5523876A
Publication Date:
December 11, 1976
Filing Date:
May 14, 1976
Export Citation:
Assignee:
INSPECTION TECHNOLOGY DEV
International Classes:
G01B7/13; G01M3/00; G01M3/28; (IPC1-7): G01M3/04