Gas separation: apparatus – Degasifying means for liquid – With control means responsive to sensed condition
Reexamination Certificate
2008-08-07
2010-12-14
Smith, Duane (Department: 1797)
Gas separation: apparatus
Degasifying means for liquid
With control means responsive to sensed condition
C096S176000, C096S207000
Reexamination Certificate
active
07850767
ABSTRACT:
An anti-foaming degassing device for use in fuel dispensing equipment, having:a circulating pump (1) for the fuel,a vortex degassing enclosure (2) connected to the outlet of the pump (1) and provided with a lateral outlet pipe (8) for the degassed fuel and with an axial outlet pipe (9) for a gas-enriched fraction of fuel,a separating vessel (3) connected to the axial outlet pipe (9) in which the liquid fuel is separated by gravity before being transferred back to the pump (1), andcontrol means (20) making it possible to vary the flow rate of the fraction collected by the axial outlet pipe (9) according to its gas content.The axial outlet pipe (9) opens in the lower part of the separating vessel (3), into the gravity-separated liquid fuel, in such a way as to prevent the formation of foam in this vessel.
REFERENCES:
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patent: 4978374 (1990-12-01), Janssen et al.
patent: 5902382 (1999-05-01), Campain et al.
patent: 2009/0120296 (2009-05-01), Saito
patent: 0357513 (1990-03-01), None
patent: 2730484 (1996-08-01), None
The Search Report mailed Apr. 4, 2008 in priority application No. FR0756992.
Drinker Biddle & Reath LLP
Smith Duane
Theisen Douglas J
Tokheim Holding BV
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