Fluid handling – Processes – Cleaning – repairing – or assembling
Reexamination Certificate
2007-10-09
2007-10-09
Keasel, Eric (Department: 3753)
Fluid handling
Processes
Cleaning, repairing, or assembling
C137S202000, C137S587000
Reexamination Certificate
active
10492529
ABSTRACT:
System for closing off an opening in a plastic tank, formed from a sheet of multilayer plastic that includes a barrier layer, the said sheet being welded around the perimeter of the opening and provided with a peripheral region that is slimmed down so as to effectively restrict the permeation of gases and liquids into the layer located between the tank and the barrier layer. Method of closing of a tank by welding such a plate, comprising the welding of the slimmed-down peripheral part by the technique of laser or infrared radiation welding. Use of the method to close off a fuel tank for a motor vehicle.
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Dougnier Francois
Gerard Yannick
Leonard Stéphane
Inergy Automotive Systems Research (Société Anonyme)
Keasel Eric
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Schneider Craig M.
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