Patent ID: 7748270
Filing Date: 2010-07-06
Classification: G01F

Abstract:
1. A liquid level indicator for use with a receptacle, the indicator comprising: a base block for sealing engagement with a receptacle opening area; an enclosure for sealing engagement with said base block and shaped and dimensioned to cover substantially entirely a portion of the base block extending outside the receptacle for shielding the base block against precipitation; a float arrangement comprising a float disposed for floating at a liquid level within the receptacle, and a sliding rod connected to the float at one end and having a distal end extending slidably through the base block into the enclosure, the enclosure being adapted for indicating the position of the slidable rod within the enclosure to thereby determine the liquid level within the receptacle, the enclosure being provided with an interior flange lying parallel with the enclosure opening; internal threadings disposed between the enclosure opening and the flange; and a gasket disposed between the internal flange and the internal threadings, whereby tightening of the enclosure onto the base block distorts the gasket until the gasket comes in contact with the base block to form a liquid- and gas-tight seal.