Liquid fuel dispensing system including a filtration vessel with

Details Liquid fuel dispensing system including a filtration vessel with Liquid fuel dispensing system including a filtration vessel with

1991-01-11

1992-06-16

Dawson, Robert A.

Liquid purification or separation

Flow, fluid pressure or material level, responsive

Discharge of treated material

210170, 210172, 210249, 210436, 210450, 2104971, 2105021, 220 414, 220 862, 1372346, 1372361, 137363, 137546, 137565, 405 53, B01D 2704

Patent

active

051222647

ABSTRACT:
A liquid fuel dispensing system with improved means of preventing water and particulate contamination employing an underground fuel storage tank, a pump for moving fuel from the fuel storage tank to a pump fuel outlet, an underground enclosed sump in which at least a portion of the pump is located, a filtration vessel within the sump having a fuel inlet connected to the pump fuel outlet and a fuel outlet, a filter element in the filtration vessel in series with fuel flow therethrough, the filter element having a filter media which intercepts particulate contaminants and which absorbs water to thereby prevent particulate and water contaminants from passing therethrough, a fuel shut-off device in conjunction with the filter element which is moved to the closed position when a predetermined pressure differential develops across the filter media as water is absorbed, the shut-off device serving to, upon actuation, completely block the flow of fuel through the filter element.

REFERENCES:
patent: 2336150 (1943-12-01), Harvath
patent: 3165469 (1965-01-01), Bruns et al.
patent: 3294025 (1966-12-01), Niemeyer et al.
patent: 4028075 (1977-06-01), Roberge
patent: 4077884 (1978-03-01), Naumann
patent: 4364825 (1982-12-01), Connor, Jr.
patent: 4645600 (1987-02-01), Filippi

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