Stock material or miscellaneous articles – Structurally defined web or sheet – Including grain – strips – or filamentary elements in...
Patent
1993-01-11
1994-12-13
Cannon, James C.
Stock material or miscellaneous articles
Structurally defined web or sheet
Including grain, strips, or filamentary elements in...
523091, 523097, 428203, 428220, 428255, 428294, 428339, E01F 800, E04B 182
Patent
active
053728661
ABSTRACT:
Transparent plastic panels, particularly those used in noise-reducing barriers, are provided with bird-protecting means comprising plastic threads which are embedded by casting in the panels and are of such high-contrast that they can be seen by birds. The threads also prevent the panel from fracturing. Preferably the plastic threads are of black dyed polyamide and have a thickness of about 2 mm.
REFERENCES:
patent: 2519474 (1950-08-01), Jackson et al.
patent: 3567566 (1971-03-01), Bandell et al.
patent: 4631214 (1986-12-01), Hasegawa
patent: 5040352 (1991-08-01), Oberlander et al.
patent: 5160782 (1992-11-01), Hickman
patent: 5219630 (1993-06-01), Hickman
Brand Norbert
Oberlander Klaus
Seelman Peter
Wachter Heinz
Cannon James C.
Degussa - Aktiengesellschaft
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