Stock material or miscellaneous articles – Structurally defined web or sheet – Including variation in thickness
Reexamination Certificate
2005-03-15
2005-03-15
Loney, Donald J. (Department: 1772)
Stock material or miscellaneous articles
Structurally defined web or sheet
Including variation in thickness
C428S213000, C428S425600, C428S430000, C359S630000, C345S007000, C296S084100
Reexamination Certificate
active
06866918
ABSTRACT:
A laminated safety glass windscreen, which can also be used as a reflector in a HUD system, comprises at least first and second panes and a thermoplastic intermediate layer which joins these panes together. The cross-section of the intermediate layer is in the shape of a wedge, decreasing in thickness from top to bottom. The thermoplastic intermediate layer may be composed of two sheets, one of which is provided with a colored filtering strip and has a wedged cross-section conditioned by the appearance of this filtering strip. The other sheet has a wedged cross-section such that the two sheets together have the prescribed convergence angle for using the windscreen as a reflector.
REFERENCES:
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patent: 3868286 (1975-02-01), Fariss et al.
patent: 3881043 (1975-04-01), Rieser et al.
patent: 3922456 (1975-11-01), Baldridge
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patent: 6534152 (2003-03-01), Freeman
Defense Publication 861036.1019, S.N. 739939, Laminated Glass Assembly with tapered Inner layer, by H.V. Christensen.
Loney Donald J.
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Saint-Gobain Glass France
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