Fuel flow restriction plug for recirculation pipe

Details Fuel flow restriction plug for recirculation pipe Fuel flow restriction plug for recirculation pipe

2006-07-13

2009-11-10

Maust, Timothy L (Department: 3751)

Fluent material handling, with receiver or receiver coacting mea

Multiple passage filling means for diverse materials or flows

With baffle, spreader, displacer, drip ring, filter or screen

C141S285000, C123S518000, C137S015240

Reexamination Certificate

active

07614431

ABSTRACT:
A flow-restricting plug is provided for installation within a vapor recirculation pipe that communicates with a fuel filler pipe. The plug is manufactured of fuel-impervious material and has a cylindrical shape adapted to be mounted by press fit within the vapor recirculation pipe. A flow passage of tortuous shape is formed along the outer circumferential surface of the plug between the opposed ends thereof. The tortuous shape of the flow passage permits the flow of fuel vapor through the plug but prevents the flow of liquid fuel through the plug.

REFERENCES:
patent: 4699638 (1987-10-01), Harris
patent: 4741369 (1988-05-01), Dawson
patent: 4809863 (1989-03-01), Woodcock et al.
patent: 4932444 (1990-06-01), Micek
patent: 5033517 (1991-07-01), Bucci
patent: 5275213 (1994-01-01), Perkins
patent: 6029719 (2000-02-01), Hor et al.
patent: 7311088 (2007-12-01), Callahan et al.

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