Method and apparatus for inhibiting air infiltration into fuel d

Details Method and apparatus for inhibiting air infiltration into fuel d Method and apparatus for inhibiting air infiltration into fuel d

1994-07-26

1996-02-13

Recla, Henry J.

Fluent material handling, with receiver or receiver coacting mea

Processes

Battery grid pasting

141 14, 141 39, 141 45, 141 47, 141192, 141230, 137202, 137587, B65B 104, B65B 304

Patent

active

054905443

ABSTRACT:
A device used in liquid fuel dispensing systems to inhibit the infiltration of air into the product dispensing line due to thermal contraction. A fluid tight container is connected with the product line and supplied with fuel in an amount sufficient to make up the liquid volume loss caused by thermal contraction. A siphon line in the container opens near its bottom. A vent for the container is normally closed by a valve under normal pressures of the dispensing system. When thermal contraction reduces the product line pressure far enough to create a vacuum, the valve opens the container vent so that the fuel in the container can flow into the product line to keep it full of liquid and avoid drawing air into the line.

REFERENCES:
patent: 2964918 (1960-12-01), Hansen et al.
patent: 5038838 (1991-08-01), Bergamini et al.
patent: 5368001 (1994-11-01), Roche

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