System for effective vapor recovery without seal members in fuel filling installations
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United States of America Patent
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-
Aug 2, 1994
Grant Date -
N/A
app pub date -
Sep 15, 1992
filing date -
Sep 15, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A system for vapor recovery in fuel filling installations without the use of seal members between the delivery gun and the filler pipe of the vehicle to be refuelled, comprising control means which in response to electrical signals indicative of the volumetric fuel delivery rate render the volumetric draw-in rate of said recovery means always greater than said volumetric fuel delivery rate; a preferred embodiment of said control means is also described.
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