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Safety system for transfer of pressurized fluid

  • US 5,921,266 A
  • Filed: 06/03/1997
  • Issued: 07/13/1999
  • Est. Priority Date: 06/03/1997
  • Status: Expired due to Fees
First Claim
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1. A safety system for transfer of pressurized fluid between a tank of a cargo vehicle and a storage container, which system comprises:

  • a pump 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 fluid passing said pump;

    a delivery hose having a first end in communication with said vehicle pump and a second end in communication with said storage container for transfer of said pressurized fluid;

    a cable attached to said delivery hose and responsive to deflections of said hose, said cable having a first end terminating in a pin receivable in an electrical switch box and a second end attachable to said storage container; and

    an electrical switch activated by said deflections of said hose via removal of said pin from said electrical switch box, said electrical switch in communication with said pump valve to close said pump valve and interrupt flow of said pressurized fluid.

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