Patent ID: 6386246
Filing Date: 2002-05-14
Classification: B67D

Abstract:
A vapor recovery system for use in a fuel dispensing environment, said system comprising:a) a fuel dispenser having a product delivery line and a vapor recovery line; b) a storage tank connected to said product delivery line and said vapor recovery line, said storage tank for storing product and recovering vapor from said vapor recovery line; c) a ventilation system associated with said storage tank for relieving pressure within said storage tank; d) a vapor recovery pump fluidly connected to said vapor recovery line for drawing vapors through said vapor recovery line into said storage tank; e) a hydrocarbon concentration sensor associated with said ventilation system; f) a vapor flow rate sensor proximate one said hydrocarbon concentration sensor and associated with said ventilation system; and g) a control system operatively connected to said pump and each of said sensors, said control system for calculating a flow rate and a hydrocarbon concentration through said ventilation system based on readings of said sensors; wherein said vapor recovery pump is proximate said processing unit; wherein said ventilation system includes a processing unit; and wherein said sensors are positioned between said pump and said processing unit.