Patent ID: 6823886
Filing Date: 2004-11-30
Classification: B67D,F16L,G01M,Y10S,Y10T

Abstract:
A sump for inhibiting leakage of liquid contained therein comprising:a double wall for at least part of the sump, the sump defining a cavity for containing liquid, the double wall being for at least one of a base or side wall of the sump, the double wall having an exterior wall, the double wall having an interior wall; an exterior wall aperture in the exterior wall of the double wall and an interior wall aperture in the interior wall of the double wall, wherein a means for transferring fluid can be inserted through the exterior wall aperture and the interior wall aperture; an interstitial space between the double wall; a fluid in the interstitial space; and a sensor in fluid communication with the fluid in the interstitial space such that a change in the condition of the fluid in the interstitial space causes the sensor to indicate leakage into or from the interstitial space, the sensor being removably secured to an interior wall portion of the double wall with a portion of the sensor extending through the interior wall portion a predetermined distance into the interstitial space so that the sensor will then be able to detect whether there is any leakage in the interstitial space.