High efficiency vapor recovery fuel dispensing
October 29, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3874427 Liquid dispensing, vapor recovery system Closed fuel system with vacuum assist Fuel dispensing system with controlled vapor withdrawal Magnetically actuated vapor valve Fuel tank venting System for safe vapour recovery, particularly suitable for fuel filling installations Vapor recovery system for fuel dispenser Control system for temperature compensated vapor recovery in gasoline dispenser Fuelling apparatus InventorsAssigneeApplicationNo. 968595 filed on 10/29/1992US Classes:141/1, PROCESSES141/5, With filling with fluent non-gaseous materials141/44, Gas and other material separating passage or chamber141/46, System fluid used in seal or in valve or lift operation141/59, Filling with exhausting the receiver141/83, WITH TESTING OR WEIGHING RECEIVER CONTENT141/128DRIBBLE OR REDUCED FLOW AT END OF CYCLEExaminersPrimary: Cusick, Ernest G.Attorney, Agent or FirmForeign Patent References
International ClassB65B 001/04AbstractAn apparatus for dispensing volatile liquid fuel with recovery of fuel vapors includes a fuel delivery system having a fuel delivery line and a pump in the line to pump fuel there-along to a nozzle. A vapor recovery subsystem includes a vapor return line from the nozzle and a vapor impulsion means to induce vapor to flow through the vapor return line at a vapor flow rate comparable to the liquid flow rate through the fuel delivery line during most of a fueling operation. A vapor impulsion booster boosts the vapor flow rate above the liquid flow rate early in a fueling operation.Field of SearchFilling with exhausting the receiverGas and other material separating passage or chamber Material returned to supply System fluid used in seal or in valve or lift operation WITH TESTING OR WEIGHING RECEIVER CONTENT DRIBBLE OR REDUCED FLOW AT END OF CYCLE PROCESSES Gas or variation of gaseous condition in receiver With filling with fluent non-gaseous materials Gas condition control in housing for receiver | |
