METHOD AND TOOL FOR MEASURING LENGTH OF GAS CONDUIT

PROBLEM TO BE SOLVED: To precisely measure a length of a gas conduit from a specified position upto a different-diametric flow passage forming part, irrespective of a piping condition of the conduit and a confirming condition for a position of the flow passage forming part. SOLUTION: This method is...

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Bibliographische Detailangaben
1. Verfasser:	TSUKIMOTO FUMIO
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING JOINTS OR FITTINGS FOR PIPES LIGHTING MEANS FOR THERMAL INSULATION IN GENERAL MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS MECHANICAL ENGINEERING PHYSICS PIPES SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING TESTING THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To precisely measure a length of a gas conduit from a specified position upto a different-diametric flow passage forming part, irrespective of a piping condition of the conduit and a confirming condition for a position of the flow passage forming part. SOLUTION: This method is a gas conduit length measuring method for measuring the length of the gas conduit C from the specified position of the gas conduit C upto the different-diametric flow passage forming part P provided in a midway of the conduit in a downstream of the specified position, and formed with a different-diametric flow passage 1 provided with a small diameter part 4 smaller than an inside diameter of the gas conduit. In the method, a moving body 6 movable inside the conduit along the conduit and precluded from passing the different-diametric flow passage is inserted from the specified position into an inside of the conduit, a flexible long body 8 is pulled in by the moving body while moving the body 6 toward the passage, and the length of the conduit is measured based on a pulled-in length of the long body pulled into the conduit until the motion of the moving body stops.