Dispensing – Automatic control – Material level control
Reexamination Certificate
2006-10-24
2006-10-24
Nicolas, Frederick C. (Department: 3754)
Dispensing
Automatic control
Material level control
C222S061000, C222S394000, C222S399000, C222S464100, C222S464700, C141S094000, C141S198000
Reexamination Certificate
active
07124913
ABSTRACT:
A transportable container for high purity, high cost, liquid chemicals capable of maximizing dispensing of the liquid chemical content of the container at deviations from an upright position, comprising; a top wall, a side wall and a bottom wall, the bottom wall having an internal surface contacting liquid chemical with a concave upward contour having a lowest most point axially central to the container, an inlet, an outlet comprising a diptube through which the liquid chemical can be dispensed from said container with an outlet end adjacent the top surface and an inlet terminal end adjacent the lowest most point, a level sensor assembly having an output end adjacent the top surface and a terminal end adjacent the lowest most point; the diptube and the level sensor assembly being more proximate to one another at their terminal ends than their ends adjacent the top surface.
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Birtcher Charles Michael
Dunning Richard J.
Steidl Thomas Andrew
Vivanco Gildardo
Air Products and Chemicals Inc.
Chase Geoffrey L.
Nicolas Frederick C.
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