Sewer plug

The invention is a sewer plug which is inserted into a sewer main line and positioned over a tributary or sewer feed line coming into the sewer main line. The sewer plug has an inflatable collar which is inflated once the device is in place. The inflation of the device causes blockage of the feeder...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	DOERZAPH ZACHARY, O'DONNELL QUINCY, DEES RICHARD L, REEDER CHRIS A, PAULUS MARK E
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 MECHANICAL ENGINEERING PIPES SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	The invention is a sewer plug which is inserted into a sewer main line and positioned over a tributary or sewer feed line coming into the sewer main line. The sewer plug has an inflatable collar which is inflated once the device is in place. The inflation of the device causes blockage of the feeder line, but allows the flow through the sewer main line to continue. The device is positioned using lines attached to the device which are pulled from an upstream and a downstream manhole access. The device can be positioned by moving at a measured distance between the two manhole accesses, or by the use of a video camera, which can be attached to the device, and which enables a user to view the sewer tributary line during positioning. When the device is no longer used, it may be deflated and pulled out of the sewer main line.