Patents Assigned to Graffco, Inc.
  • Patent number: 7147015
    Abstract: A manifold system for retrofitting an electronically controlled, multi-product, multi-hose fuel pump station into an electronically controlled multi-product, single-hose fuel pump station. The manifold system includes multiple partial manifolds that are connected by piping. The system enables connection of at least two existing independent input lines of distinct fuel grades to a common outlet, which is connected to a single existing fueling point Respective fuel grade switches select a fuel grade for delivery from the existing fueling point. An electronic controller ensures that only the selected grade of fuel passes through the outlet of the manifold to the existing fueling point.
    Type: Grant
    Filed: February 22, 2005
    Date of Patent: December 12, 2006
    Assignee: Graffco, Inc.
    Inventor: Rick L. Durham
  • Patent number: 6557733
    Abstract: A system and method for retrofitting an electronically controlled, multi-product, multi-hose fuel pump station into an electronically controlled multi-product, single-hose fuel pump station.
    Type: Grant
    Filed: September 26, 2001
    Date of Patent: May 6, 2003
    Assignee: Graffco, Inc.
    Inventor: Rick L. Durham