The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 27, 1976
Filed:
Mar. 27, 1974
Einar T Young, Newtown Square, PA (US);
Stephen M Fromnick, Glen Riddle, PA (US);
Robert Mayer, Ardmore, PA (US);
Robert H Livesay, West Chester, PA (US);
Sun Oil Company of Pennsylvania, Philadephia, PA (US);
Abstract
A blending-type motor fuel dispensing apparatus operates to blend together, in various proportions, two liquid motor fuels (gasolines) of different octane ratings, to produce various grades of product. The quantity and cost displays, and also the automatic control of the blend during dispensing, are based upon the summation of two sets of pulses, the number of pulses in each set being proportional to the integrated flow rate of a corresponding one of the two fuels. The pulses are counted and multiplied by a price per gallon, which has been previously set for the grade being dispensed, to provide a cost display. A pulse comparison circuit, which compares pulses representative of the flow of one fuel with a percentage (settable for each blend) of the summed pulses, is used to control the proportioning of the two fuels. Selection of a desired product for dispensing (one out of five products, for example) is made by operating an appropriate pushbutton; when this is done, the proportioning control valves are automatically pre-positioned to a setting corresponding to the particular selection that has been made.