Patent ID: 9228880
Filing Date: 2016-01-05
CPC Classification: B65D,B67D,G01F

Claim Text:
1. A small volume bottom drain liquid proving system comprising: a small volume prover comprising an upper neck section, the upper neck section having a top fill opening for receiving a liquid, a central section for accumulating the liquid, and a drain section, the drain section having a bottom fill opening; a gauge in fluid communication with an interior prover volume of the small volume prover to measure a volume of the liquid in the interior prover volume of the small volume prover; a prover drain device for controlling the release of the liquid in the small volume prover, the prover drain device disposed below the bottom fill opening; a liquid holding tank for receiving the liquid released from the small volume prover by the prover drain device through a tank prover opening disposed below the prover drain device; a vapor conduit connecting an interior prover neck volume of the upper neck section to an interior tank volume of the liquid holding tank by a tank vapor conduit opening; a vapor tank baffle assembly disposed in the holding and positioned below the tank prover opening and the tank vapor conduit opening to generate a liquid vapor from the liquid released from the small volume prover and to contain the liquid vapor within the vapor tank baffle assembly and to direct the liquid vapor into the vapor conduit via the tank vapor conduit opening; a prover top fill opening self sealing assembly having a top self sealing opening that opens when a liquid dispensing nozzle for supplying the liquid to the interior prover volume is pushed against the top self sealing opening and forms a substantially vapor tight seal around the liquid dispensing nozzle; and a vent connecting the interior tank volume of the liquid holding tank to atmosphere.