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US 2004/0207192 A1Published application
Road and rail tankers
OwnerAllan William Stobartinventor
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OwnerAllan William Stobartinventor
Estimating the term…
A tanker trailer includes tanks mounted one behind the other to a chassis using a flexible mounting system. The mounting allows individual tank movement in upward and downward directions from a rest position. Close nesting is accomplished by provided adjacent tanks with complimentary curved ends. The tanks may have progressively increasing depths from the front to the rear of the trailer. Two sight gauges disposed on a diameter passing through a volumetric centre line provides a means of assessing the quantity of liquid in the tank. Alternatively, a single gauge may be used in conjunction with a level meaning device on a horizontal line intersecting the volumetric centre line and the gauge. A vapour recovery system includes two volumetrically matched members mounted within the tank equidistant from the volumetric centre line one of which serves as a vent pipe.
A tanker comprising a wheeled chassis and a plurality of tanks, the tanks being disposed in a line one behind the other and mounted with respect to the chassis, each tank having opposite end walls and the opposite end walls of each tank being curved, and wherein the opposite end walls of each tank are complimentarily curved with respect to those of an adjacent tank.
A road tanker having at least one tank which is symmetric about a volumetric centre line, and which comprises a pair of sight gauges disposed parallel to said volumetric centre line and set at equal distances on a diameter centred on said volumetric centre line, and a calibration for each sight gauge to determine the quantity of liquid in the tank, and wherein the sight gauges branch from the tank and are vented back into the tank, and in which the liquid in the sight gauge is the liquid in the tank.
A road tanker comprising a wheeled chassis and a plurality of tanks disposed in a line one behind the other and individually mounted on the chassis, and wherein at least one tank is symmetric about a volumetric centre line, and which comprises a pair of sight gauges disposed parallel to said volumetric centre line and set at equal distances on a diameter centred on said volumetric centre line, and a calibration for each sight gauge to determine the quantity of liquid in the tank, and wherein the sight gauges branch from the tank and are vented back into the tank, and in which the liquid in the sight gauge is the liquid in the tank.
A method of measuring the quantity of liquid in a tank mounted on a wheeled chassis of a road tanker, in which the tank is symmetric about a volumetric centre line, and in which the tank further comprises a pair of calibrated sight gauges disposed parallel to said volumetric centre line and set at equal distances on a diameter centered on said volumetric centre line and in which the sight gauges branch from the tank and are vented back into the tank, and in which the liquid in the sight gauge is the liquid in the tank, in which method the readings from the pair of sight gauges are averaged to determine the quantity of liquid in the tank.
Dependencies are inferred from the claim text.