Robert C Luedde

US Patent:

44109490, Oct 18, 1983

Filed:

Sep 9, 1980

Appl. No.:

6/185612

Inventors:

Thomas R. Huellinghorst - Florissant MO
Benjamin A. Hammond - Overland MO
Robert H. Luedde - Villa Ridge MO
William C. Mertz - Webster Groves MO
Steven H. Goldberg - Santa Clara CA

Assignee:

Unidynamics/St. Louis, Inc. - St. Louis MO

International Classification:

G06F 1556
B67D 508

US Classification:

364465

Abstract:

In a computer controller for fuel dispensing including a base member, a pulser member supported by the base member and capable of detecting the various increments of fuel quantity being dispensed in addition to deductions therefrom, the signals from the pulser being transmitted to a computer, the computer processing the signals for delivery to a display assembly, and disclosure of the processed information upon liquid crystal displays readily available for view by the customer; a junction box mounted upon the base member, the junction box being completely sealed for exhibiting explosion proof attributes to prevent ignition from sparking of the associated electrical wires or thermal heating of associated electrical components, contained therein and precluding an incident ignition of the external ambient fuel vapors, a computer housing mounted upon the junction box and incorporating the various intrinsically safe circuit boards comprising the computer, and the display assemblies either connecting upon the computer housing or being portable in installation for suspension upon the front of the existing dispenser in converting it from the mechanical actuation type to an electronic computer controlled fuel dispenser.