Coaxial hose assembly for vapor assist fuel dispensing system

Details Coaxial hose assembly for vapor assist fuel dispensing system Coaxial hose assembly for vapor assist fuel dispensing system

1996-01-30

1998-02-24

Recla, Henry J.

Fluent material handling, with receiver or receiver coacting mea

Diverse fluid containing pressure filling systems involving...

Filling with exhausting the receiver

141 46, 141392, 138113, 138114, 2851331, B65B 3100

Patent

active

057203253

ABSTRACT:
Coaxial inner and outer flexible hoses connect with corresponding concentric tubular coupling members and define an inner vapor return passage and a surrounding annular fuel supply passage. The hoses and coupling members extend between a vapor recovery fuel dispensing pump and a vapor assist fuel dispensing nozzle. The tubular inner coupling member is formed in two threadably connected tubular sections which define an annular valve seat surrounding the vapor return passage. A poppet-type check valve member is supported within the vapor return passage down stream of the valve seat for axial movement from a normally open and unrestricting retracted position to a closed position engaging the valve seat in response to pressurized fuel entering the vapor return passage.

REFERENCES:
patent: 3171448 (1965-03-01), Fromm
patent: 5141037 (1992-08-01), Carmack
patent: 5297574 (1994-03-01), Healy
patent: 5297595 (1994-03-01), Haile et al.
patent: 5341855 (1994-08-01), Rabinovich
patent: 5345979 (1994-09-01), Tucker et al.
patent: 5365973 (1994-11-01), Fink, Jr. et al.
patent: 5377729 (1995-01-01), Reep

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