Patent ID: 6997042
Filing Date: 2006-02-14
Classification: B65D,B67D,G01M,Y10T

Abstract:
1. A system for detecting a leak, comprising: a riser pipe formed from a length of double-walled piping, said riser pipe comprising: a pressure sensor coupled to the interstitial space to detect a vacuum level in the interstitial space; and a sensing unit controller that is coupled to said pressure sensor to determine the vacuum level in the interstitial space; and a submersible turbine pump coupled to said riser pipe to couple the submersible turbine pump to the storage tank, said submersible turbine pump fluidly coupled to the fuel in the storage tank to draw the fuel out of the storage tank through the inner space of the riser pipe a vacuum-generating source coupled to the interstitial space; said vacuum-generating source draws the vacuum level in in the interstitial space; and said sensing unit controller determines the vacuum level in the interstitial space using said pressure sensor.