Measuring and testing – Instrument proving or calibrating – Volume of flow – speed of flow – volume rate of flow – or mass...
Reexamination Certificate
2011-01-25
2011-01-25
Fitzgerald, John (Department: 2856)
Measuring and testing
Instrument proving or calibrating
Volume of flow, speed of flow, volume rate of flow, or mass...
Reexamination Certificate
active
07874195
ABSTRACT:
A liquid proving system is provided with a bottom drain liquid prover draining into a holding tank. The fill opening of the prover has a prover fill opening self sealing assembly that remains closed except when a nozzle used to pump liquid into the prover is pushed through the opening of the prover fill opening self sealing assembly. The prover fill opening self sealing assembly may comprise a nozzle sealing gasket and a nozzle removed self seal assembly. There is a vapor conduit connecting the interior of the prover in the region of the fill opening and the interior of the holding tank to form a saturated vapor environment in the prover and holding tank from the vapors emitted from liquid in the holing tank. When liquid is pumped into the prover evaporation of the liquid being pumped into the prover, and release of vapors from the prover, is inhibited due to the saturated vapor environment in the prover, which results in a more accurate prover measurement of liquid pumped into the prover.
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Fitzgerald John
Pemberton Fabricators, Inc.
Post Philip O.
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