Patent ID: 6216719
Filing Date: 2001-04-17
Classification: B67D,Y10T

Abstract:
A safety system for transfer of pressurized fluid between a tank of a cargo vehicle and a storage container, which system comprises:a pump or compressor on said cargo vehicle in fluid communication with said cargo tank, said pump powered by said vehicle;a pump valve on said vehicle between said cargo tank and said vehicle pump to interrupt said fluid passing into said pump;a delivery hose having a first end in fluid communication with said pump and a second end in fluid communication with said storage container for transfer of said pressurized fluid;a first pressure sensor to sense pressure drops in said pressurized fluid in said delivery hose configured to convert fluid pressure into an electrical signal in response to a rupture, severing or uncoupling of said delivery hose, said first pressure sensor at said hose second end;a first switch activated by said first pressure sensor, said first switch in communication with said pump valve to completely close said pump valve to immediately interrupt flow of said pressurized fluid when said pressure drop occurs in said delivery hose;a second pressure sensor to sense pressure drops in said pressurized fluid in said delivery hose configured to convert fluid pressure into an electrical signal in response to a rupture, severing or uncoupling of said delivery hose, said first pressure sensor at said hose first end; anda second switch activated by said second pressure sensor, said second switch in communication with said pump valve to completely close said pump valve to immediately interrupt flow of said pressurized fluid when said pressure drop occurs in said delivery hose.