MARKER FOR ELECTROFUSION PIPE

PURPOSE: To protect a resonator by protecting it from high voltage in a marker having an antenna coil functioning as a coil for electrofusion when a pipe is welded. CONSTITUTION: A marker is provided on electrofusion pipe in which a coil 5 for electrofusion is buried in a coupling part, in which the...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	SHIYOUKAKU AKIROU
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING DETECTING MASSES OR OBJECTS ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS GEOPHYSICS GRAVITATIONAL MEASUREMENTS HEATING JOINTS OR FITTINGS FOR PIPES LIGHTING MEANS FOR THERMAL INSULATION IN GENERAL MEASURING MECHANICAL ENGINEERING PHYSICS PIPES SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING TESTING THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	PURPOSE: To protect a resonator by protecting it from high voltage in a marker having an antenna coil functioning as a coil for electrofusion when a pipe is welded. CONSTITUTION: A marker is provided on electrofusion pipe in which a coil 5 for electrofusion is buried in a coupling part, in which the coupling part is melted by heat generated by the coil 5 by energizing the coil 5 and in which the pipe is welded. In the marker, a resonator 7 which is connected in parallel with the coil 5 and which uses the coil 5 as an antenna coil and a resonator protective element 9 which is connected in parallel with the resonator 7 and which limits a voltage to be applied to the resonator 7 are installed.