Method and apparatus for detecting tank leaks, in which a gas pressure acts on a fluid which is situated in a tank, and in which the gas pressure in the tank or tank system is changed, wherein a tank leak is detected by evaluation of a temporal profile of a sum pressure of the fluid which is situated...http://www.google.com/patents/US7954361?utm_source=gb-gplus-sharePatent US7954361 - Method and apparatus for detecting tank leaks
