Covering frame for windows, doors, and the like

Details Covering frame for windows, doors, and the like Covering frame for windows, doors, and the like

1989-01-11

1990-10-30

Zimmerman, John J.

Stock material or miscellaneous articles

All metal or with adjacent metals

Nonplanar uniform thickness or nonlinear uniform diameter

428645, 428650, 428457, 52 58, E06B 156

Patent

active

049668196

ABSTRACT:
A covering frame for roof windows, doors, facade linings or auxiliary materials, the covering including a lead apron forming a water-tight transition. The lead apron has an aluminum layer glued to the top of the lead layer. The aluminum layer protects the lead layer to reduce the likelihood of cracks arising in the lead apron, as well as prevents the leaching of the lead due to weathering. At the same time, the aluminum layer provides for a permanent, decorative appearance of the lead apron. Further protection is available against atmospheric corrosion by applying a coat of paint to the aluminum layer. Preferably, the lead apron is corrugated and pleated together with the aluminum layer.

REFERENCES:
patent: 1079035 (1913-11-01), Tebbetts
patent: 2746136 (1956-05-01), Richaud
patent: 2875710 (1959-03-01), Bechtold
patent: 3050410 (1962-08-01), Greene
patent: 3124427 (1962-03-01), Chomes
patent: 3421276 (1969-01-01), La Barge
patent: 3497417 (1970-02-01), Rizzo
patent: 4112632 (1978-09-01), Simpson
patent: 4685256 (1987-08-01), Alkjaer
patent: 4750301 (1988-06-01), Croxford
patent: 4771179 (1988-09-01), Ijiri et al.
"LEAD-Flashings, Weatherings and Roofings", Lead Development Association, 18 Adam St., London, W. C. 2, 1958, pp. 1-4, 27.

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