Patent Number: 6,167,923

Title: Vapor recovery diagnostics

Abstract: A method for monitoring the operation of a vacuum assist vapor recovery system used in conjunction with the fueling of ORVR and non-ORVR equipped vehicles including establishing an expected number of ORVR fueling operations for a fuel dispenser during a defined interval; counting the actual number of ORVR fueling operations during said defined interval; comparing the actual number of fueling operations to the expected number of fueling operations; and permitting fueling operations to continue if the actual number is substantially equal to the expected number.

Inventors: Hartsell, Jr.; Hal C. (Kernersville, NC)

Assignee: Marconi Commerce Systems Inc.

International Classification: B67D 5/01 (20060101); B67D 5/04 (20060101); B65B 001/04 ()

Expiration Date: 01/02/2018