Fluid handling – Diverse fluid containing pressure systems – Fluid separating traps or vents
Reexamination Certificate
2005-01-18
2005-01-18
Michalsky, Gerald A. (Department: 3753)
Fluid handling
Diverse fluid containing pressure systems
Fluid separating traps or vents
C137S043000, C137S587000, C220S062110
Reexamination Certificate
active
06843267
ABSTRACT:
System and for sealing an opening of a plastic tank with a multilayer wall by means of a multilayer plate itself constituted by a polymer structure including at least one internal barrier layer and an exterior layer compatible with the exterior layer of the tank wall. The multilayer plate is welded over an opening in the tank and the plate and the wall of the tank are superimposed so that the number of superimposed layers is equal to the sum of the number of layers in the plate and the number of layers in the wall of the tank.
REFERENCES:
patent: 5139043 (1992-08-01), Hyde et al.
patent: 5425470 (1995-06-01), Duhaime et al.
patent: 0 941 884 (1999-09-01), None
Abstract of Japanese Publication 05116548 Published May 14, 1993.
Dougnier François
Gerard Yannick
Leonard Stéphane
Op De Beeck Joël
Van Schaftingen Jules-Joseph
Jackson William E.
Michalsky Gerald A.
Solvay ( Societe Anonyme)
Stites & Harbison PLLC
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