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US 4,113,437 AGranted
Liquid storage device
AssigneeSecretary of State for Social Services
InventorsIan David Duff, John Hamilton Kennedy, Roger Abraham Bunce
Life of this patent
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AssigneeSecretary of State for Social Services
InventorsIan David Duff, John Hamilton Kennedy, Roger Abraham Bunce
Estimating the term…
The liquid storage device comprises a rotary heat-insulated jacket mounted on a stationary base to rotate about a vertical axis. The jacket is formed to carry a plurality of inverted liquid containing vials, situated at least partially within the jacket, the vials being in communication with respective take-off cups which are arranged near the base of the jacket and around the periphery thereof and from which liquid specimens can be drawn off. A constant level device ensures that the level of liquid in the cups is kept at a substantially constant level. The jacket is provided with a stepping drive so that it can be stepped about its rotary axis to bring any selected cup into a liquid take-off position. The interior of the jacket is cooled with circulating, cold air and the temperature of the vials is kept at a predetermined value, below ambient, by an air heater. The storage device is intended for storing reagents to be used in an automatic blood analyzing machine.
Liquid storage apparatus comprising a base part, a heat jacket on said base part, a plurality of liquid storage containers carried by said jacket and disposed with at least their lower parts within said jacket, respective cups for the liquid storage containers, these cups being carried by said base part alongside said jacket and having upwardly facing openings through which access may be gained to liquid in the cups, passage means connecting the containers to the cups to replenish liquid withdrawn from any cup with fresh liquid from the respective liquid storage container, means, responsive to changes in liquid levels in the cups, to maintain the liquid in each cup at a substantially constant level, and means arranged to maintain the internal temperature of the jacket at a substantially constant value.
Dependencies are inferred from the claim text.