Static structures (e.g. – buildings) – Sectioned imperforate facing within perpheral frame; e.g.,... – Intersecting separators within frame
Patent
1977-11-03
1979-03-27
Bell, J. Karl
Static structures (e.g., buildings)
Sectioned imperforate facing within perpheral frame; e.g.,...
Intersecting separators within frame
52311, 52668, E04B 148, E06B 370
Patent
active
041458583
ABSTRACT:
A window grille set of pre-fabricated tubular members of a uniform cross-section having flat top, bottom and side walls which are provided with means for their joinder in crossed relation to form a self-sustaining grille assembly in which said members serve in the manner of window sash mullions to provide it with multiple light openings. The mullion-like members are provided with interlocked cross-lapped joints at each point where they cross one another and where said members are angularly related to provide diamond-shaped "lights" the opposite ends of each contiguous pair thereof are held together in miter-jointed relation by a spring-biased clip inserted into the hollow mitered extremities of said paired members. In its assembled form the grille is designed to be installed as a unit and hermetically sealed within the space conventionally provided between the spaced panes of thermal insulated window sashes.
REFERENCES:
patent: 3332188 (1967-07-01), Schaefer
patent: 3356403 (1967-12-01), Sak et al.
patent: 3748814 (1973-07-01), Cribben
patent: 3791095 (1974-02-01), Martin
patent: 3848390 (1974-11-01), Anderson et al.
patent: 3946531 (1976-03-01), Armstrong
patent: 4060950 (1977-12-01), Rackard et al.
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