B - Operations – Transporting – 60 – S
Patent
B - Operations, Transporting
60
S
222/4.4
B60S 5/02 (2006.01) B67D 7/04 (2010.01)
Patent
CA 1079236
LIQUID DISPENSING AND VAPOR RECOVERY SYSTEM UTILIZING AN IMPROVED ASPIRATOR ABSTRACT OF THE DISCLOSURE A liquid dispensing and vapor recovery system in which a control unit is connected to a storage tank for the liquid and directs the liquid to a pair of conduits which pass the liquid to a receptacle and back to the storage tank, respectively. An aspirator or is provided to establish a reduced pressure zone in the latter conduit which is in communication with the receptacle for drawing vapors from the receptacle for passage back to the storage tank. The aspirator includes a nozzle and a device disposed in the nozzle for imparting a swirl and a flare to the fluid as it discharges from the nozzle to further reduce the pressure in the reduced pressure zone. A manually operable valve is disposed in the conduit passing the fluid back to the storage tank for controlling the amount of fluid entering the aspirator.
298571
Na
Wylain
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