Device for repairing pipe joints

A device for repairing cast iron pipe joints comprises a head (10) having a motor (110) for actuating a tool (60) and a body (44), the head (10) being pivotally connected to the body (44) so that it can be pivoted from an axial position to a radial position within the pipe. In a preferred embodiment...

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Bibliographische Detailangaben
Hauptverfasser:	KUZAN, PAWEL, GOLDENBERG, ANDREW A, WIERCIENSKI, JACEK
Format:	Patent
Sprache:	eng ; fre ; ger
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 MECHANICAL ENGINEERING PIPES SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A device for repairing cast iron pipe joints comprises a head (10) having a motor (110) for actuating a tool (60) and a body (44), the head (10) being pivotally connected to the body (44) so that it can be pivoted from an axial position to a radial position within the pipe. In a preferred embodiment, the head (10) includes a motor (110) driving a drill bit (60). A retractable foot (82) is extended to force the head (10) against the pipe wall to be pierced by the drill bit (60), following which sealant is injected into a hollow drill shaft (62) and flows up the helical grooves of the drill bit (60) into the pipe joint cavity (5). Preferably a pair of guide wings (70) maintains the device centred in the pipe and raised off of the pipe floor, and the operator monitors progress of the device through a video monitor (142).