Patent ID: 6253801
Filing Date: 2001-07-03
Classification: B67D,Y10T

Abstract:
A drainage system for draining liquid from bridging hoses between interconnected oil tanks after completion of a tank filling process wherein oil remained standing in the respective bridging hoses, wherein each of the bridging hoses have opposite ends, each end of said opposite ends communicating with a separate oil tank comprising,a) a container inside each tank, said container having an open end and an opposite closed end and being positioned inside the tank with the open end pointed in a downward direction and the closed end in an upward direction,b) a conduit in each said tank having one end connected to the closed end of each of said containers and an opposite end connected to one end of each of the bridging hoses, andc) a cock valve on each said conduit between the closed end of each said container and the one end of each of the bridging hoses, the cock valve being provided to open and close the conduit, wherein said cock valve, in an open position, allows confined air within the container to enter the one end of each of the bridging hoses through the conduit, and drain out, through the opposite end of each of the bridging hoses, the oil that has remained standing in the bridging hoses after the completion of the tank filling process.