Laminated glass windscreen intended to be used at the same...

Stock material or miscellaneous articles – Structurally defined web or sheet – Including variation in thickness

Reexamination Certificate

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C428S213000, C428S425600, C428S430000, C359S630000, C345S007000, C296S084100

Reexamination Certificate

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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:
patent: 3762988 (1973-10-01), Clock et al.
patent: 3868286 (1975-02-01), Fariss et al.
patent: 3881043 (1975-04-01), Rieser et al.
patent: 3922456 (1975-11-01), Baldridge
patent: 5013134 (1991-05-01), Smith
patent: 5087502 (1992-02-01), Espesito et al.
patent: 5812332 (1998-09-01), Freeman
patent: 5945199 (1999-08-01), Morin et al.
patent: 6534152 (2003-03-01), Freeman
Defense Publication 861036.1019, S.N. 739939, Laminated Glass Assembly with tapered Inner layer, by H.V. Christensen.

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