Apparatus for dispensing a plurality of fluids and container for use in the same
First Claim
1. A method of measuring the densities of fluids by means of an apparatus for dispensing a plurality of fluids, the apparatus comprising a plurality of volumetric metering pumps, each pump connected to a container by a connector for releasably connecting said container to its respective pump, and the apparatus further comprising a weighing device for measuring a weight of fluid dispensed by the pumps, the method comprising:
- dispensing a first pre-selected volume of a first fluid from a first volumetric metering pump;
measuring the weight of the dispensed volume of the first fluid;
dividing the measured weight of the first fluid by the pre-selected volume thereby yielding a value for density of the first fluid;
dispensing a second pre-selected volume of a second fluid from a second volumetric metering pump;
measuring the weight of the dispensed volume of the second fluid; and
dividing the measured weight of the second fluid by the second pre-selected volume thereby yielding a value for density of the second fluid.
1 Assignment
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Accused Products
Abstract
An apparatus for dispensing a plurality of fluids, comprising a plurality of pumps, having a connector for releasably connecting, to the respective pump, a container, which holds a fluid and comprises a connector-counterpart, and at least one actuator for releasing a container from a connector, which the actuator is adapted to operatively engage the connector-counterpart and, upon engaging this counterpart, pull the same onto the connector and establish a fluid connection between the respective pump and the container.
101 Citations
13 Claims
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1. A method of measuring the densities of fluids by means of an apparatus for dispensing a plurality of fluids, the apparatus comprising a plurality of volumetric metering pumps, each pump connected to a container by a connector for releasably connecting said container to its respective pump, and the apparatus further comprising a weighing device for measuring a weight of fluid dispensed by the pumps, the method comprising:
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dispensing a first pre-selected volume of a first fluid from a first volumetric metering pump; measuring the weight of the dispensed volume of the first fluid; dividing the measured weight of the first fluid by the pre-selected volume thereby yielding a value for density of the first fluid; dispensing a second pre-selected volume of a second fluid from a second volumetric metering pump; measuring the weight of the dispensed volume of the second fluid; and dividing the measured weight of the second fluid by the second pre-selected volume thereby yielding a value for density of the second fluid.
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2. A method of calibrating an apparatus for dispensing a plurality of fluids, the method comprising a plurality of volumetric metering pumps, each pump connected to a container by a connector for releasably connecting said container to its respective pump, the apparatus further comprising a weighing device for measuring the weight of the fluid dispensed by the pumps and a data processing device comprising a memory for storing data, the method comprising:
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selecting one or more discrete volumes; dispensing each of the discrete volumes one or more times with at least one of the pumps; measuring values for each dispensed volume and, calculating for the discrete volumes and the pumps a mean value of the measured values; and storing the mean value in the data processing device. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification