Vapor recovery system
OwnerCharles E. Pylesinventor
Life of this patent
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Abstract
A plurality of hydrocarbon storage tanks, each storage tank has a) a fill conduit, b) a vapor recovery conduit and c) a vent line. The vent lines of the hydrocarbon storage tanks are directly connected to the vapor recovery risers and a manifold bar is connected to every vent line. The system allows for the maximum recovery of vapors during simultaneous filling of at least three storage tanks. The system also includes a vapor recovery pipe connected to at least one of the vent lines for receiving the vapor recovered from the vapor-recovery unit of hydrocarbon nozzles which dispense hydrocarbons to automobiles.
Claims15
A vapor recovery system for a service station for recovering volatile hydrocarbon vapors comprising:
- a) a plurality of underground hydrocarbon storage tanks, each tank having:
- i) first means for filling the hydrocarbon storage tank with a volatile hydrocarbon fluid,
- ii) second means for recovering hydrocarbon vapor displaced and generated during the filling of the hydrocarbon storage tank, and
- iii) third means for venting hydrocarbon vapor to the atmosphere which means is connected directly, by a fitting, to and in fluid communication with the second means;
- and
- b) an underground primary manifold connected to and in fluid communication with each said third means.
A vapor recovery system for a service station for recovering volatile hydrocarbon vapors during the filling of hydrocarbon storage tanks and the dispensing of hydrocarbons to automobiles, comprising:
- a) a plurality of hydrocarbon storage tanks for receiving different grades of gasoline, each tank having
- i) first means for filling the hydrocarbon storage tank with a volatile hydrocarbon fluid,
- ii) second means for recovering hydrocarbon vapors displaced and generated during the filling of the hydrocarbon storage tank,
- iii) third means for venting hydrocarbon vapor to the atmosphere connected to and in fluid communication with the second means;
- b) a primary manifold connected to and in fluid communication with each third means in the vicinity of the second means;
- c) fourth means for recovering vapor from at least one gasoline dispensing unit of a service station having a first end connected in fluid communication to the third means of a hydrocarbon storage tank containing the lowest grade of gasoline, and having a second end connected to the vapor recovery nozzles of the gasoline dispensing unit of the service station;
- and
- d) a secondary manifold located downstream from the primary manifold and connected in fluid communication to each third conduit.
Dependencies are inferred from the claim text.