Combination casting for a blending dispenser

Fluent material handling – with receiver or receiver coacting mea – Diverse fluid containing pressure filling systems involving... – Filling with exhausting the receiver

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141 45, 141105, 141285, 285132, 2851331, 285150, 220746, 220 862, B67D 556

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active

052033848

ABSTRACT:
The problems associated with combining fuel blending and vapor recovery functions in a fuel dispenser are substantially overcome by a casting and method which provide for not only fuel blending and dispensing, but also vapor recovery. The casting and method of the present invention are adapted for use with a coaxial hose having a small diameter inner hose for dispensing fuel and a larger diameter outer hose defining an annular vapor recovery passage between the inner and outer hoses. The casting of the present invention has first and second product inlets intersecting at a mixing or blending chamber which empties into a single product outlet. As such, blending occurs within the casting and the product output can be either of the first or second products, for example, high or low grade unleaded fuel, or an intermediate grade blended fuel product produced by blending selected volumes of the first and second products. The invention is particularly though not exclusively adapted to use with a dispenser having a single nozzle on at least one side of the dispenser for dispensing high, low, and mid-grade fuels. In accordance with a preferred embodiment of the present invention, one end of the casting incorporates two fuel product inlets and at least one recovered vapor outlet while the opposite end of the casting has a fuel product outlet and an annular vapor recovery inlet.

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Series 580E, Pushbutton Fixed-Ratio Blending Dispenser, 1989.

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