Patent ID: 6786245
Filing Date: 2004-09-07
Classification: B60S,F17C,Y02E

Abstract:
A self-powered station having a plurality of vessels for delivering a pressurized fluid to a first receiving tank without using mechanical compression, external electric power, or other external utilities, comprising:a first vessel containing a first quantity of the pressurized fluid at a first pressure; a second vessel containing a second quantity of the pressurized fluid at a second pressure; a conduit having a first end in fluid communication with the first receiving tank and a second end in controllable fluid communication with each of the first vessel and the second vessel; means for transferring at least a portion of the first quantity of the pressurized fluid from the first vessel through the conduit to the first receiving tank without using mechanical compression, external electric power, or other external utilities, thereby resulting in an increasing pressure in the first receiving tank and a decreasing pressure in the first vessel, the increasing pressure in the first receiving tank being less than the second pressure of the pressurized fluid in the second vessel; means for measuring continuously a pressure differential between the increasing pressure in the first receiving tank and the decreasing pressure in the first vessel; means for discontinuing the transfer of the pressurized fluid from the first vessel when a predetermined limit value is reached; and means for transferring at least a portion of the second quantity of the pressurized fluid from the second vessel through the conduit to the first receiving tank without using mechanical compression, external electric power, or other external utilities.