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    AN APPARATUS AND METHOD FOR CALIBRATING MANIFOLDED TANKS
    2.
    发明公开
    AN APPARATUS AND METHOD FOR CALIBRATING MANIFOLDED TANKS 失效
    装置和方法进行校准多个容器

    公开(公告)号：EP0828998A1

    公开(公告)日：1998-03-18

    申请号：EP96917845.0

    申请日：1996-05-30

    申请人： Veeder-Root Company

    发明人： HART, Robert, P. ,  MALININ, Leonid, M.

    IPC分类号： G01F1 ,  G01F17 ,  G01F25

    CPC分类号： G01F1/007 ,  G01F17/00 ,  G01F25/0061 ,  G01F25/0084

    摘要： An apparatus and method are provided for calibrating manifolded liquid storage tanks. The apparatus includes sensors disposed within the tanks for sensing the liquid levels in each of the tanks and a metering device for measuring the amount of liquid dispensed into or out of the storage tanks. A processor is also provided which determines the amount of liquid dispensed from each tank based on liquid level measurements obtained during idle periods following dispensing periods. Once this information is obtained, single tank calibration techniques are employed. An alternate combined tank calibration can also be used. This method does not separate out the amount of liquid dispensed from each tank, but rather utilizes the combined amount dispensed. From this simpler, but less accurate method, an 'equivalent' combined tank chart or combined mathematical formula may be generated using the metered amounts and a combined height amount. Heights from the two tanks may be simply averaged. The processor may be programmed to perform either or both methods.

    FUEL STORAGE TANK LEAK PREVENTION AND DETECTION SYSTEM AND METHOD
    3.
    发明公开
    FUEL STORAGE TANK LEAK PREVENTION AND DETECTION SYSTEM AND METHOD 有权
    燃料储罐泄漏防护和检测系统及方法

    公开(公告)号：EP1611454A2

    公开(公告)日：2006-01-04

    申请号：EP04757545.1

    申请日：2004-03-16

    申请人： Veeder-Root Company Inc.

    发明人： HALLA, Don ,  DOLSON, Richard ,  HART, Robert, P. ,  LUCAS, Richard ,  HUTCHINSON, Ray ,  REID, Kent

    IPC分类号： G01S1/00

    CPC分类号： B67D7/3209 ,  B65D90/503

    摘要： A storage tank leak detection and prevention system that detects a breach or leak in the interstitial space of a double-walled fuel storage tank (101) in a service station environment. The interstitial space is placed under a vacuum using a submersible turbine pump (15) that is also used to pump fuel to the fuel dispensers in the service station and therefore a separate vacuum generating source is not required. A sensing (46) unit and/or tank monitor (42) monitors the vacuum level in the interstitial space over time. If a significant vacuum level change occurs in the interstitial space after the interstitial space is placed under a vacuum level, a catastrophic leak detection alarm is generated. If a minor vacuum level change occurs in the interstitial space after the interstitial space is placed under a vacuum, a precision leak detection alarm is generated. Functional tests also ensure that the leak detection system is functioning properly.