Patent · US Expired

Monitorable device and method for monitoring a device for sealing off a body

US5335535A · kind A · utility

6Cited by

9References

6Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Klaus Ruthrof · Nürnberg, DE
Peter Jax · Hannover, DE
Karl Bode · Hersbruck, DE
Klaus Gunther · Voerde, DE

Key dates

Filing date	Nov 16, 1992
Grant date	Aug 9, 1994
Priority date	—
Expiry date	Nov 16, 2012

Classification

Technology area (CPC G)Physics
CPC primaryG01M3/26
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A monitorable device for sealing off a body, in particular a garbage dump or a landfill, includes two seals sealing off a body and being mutually spaced-apart defining a control chamber between the seals. The control chamber has connections for an inlet opening and an outlet opening and is otherwise closed. A permeable channel or hose is connected between the inlet opening and the outlet opening in the control chamber for carrying a transport medium. A lance which is used for supplying a tracer gas may be disposed outside the control chamber and may face toward one of the seals. A sensor is connected to the outlet opening for detecting the tracer gas. A method for monitoring a device for sealing off a body includes sealing off a body with two seals being mutually spaced-apart defining a control chamber between the seals being closed except for connections for an inlet opening and an outlet opening. A transport medium is passed through a permeable channel or hose in the control chamber between the inlet opening and the outlet opening. If a tracer gas is admitted through one of the seals, an appearance of the tracer gas at the outlet opening is monitored. A leakage site is determined…

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.