Arch frame

Details Arch frame Arch frame

1996-08-22

1997-12-23

Friedman, Carl D.

Static structures (e.g., buildings)

Window or window sash, sill, mullion, or glazing

Architrave; i.e., molding or finish strip touching pane face

52 85, 52 86, 522041, 527305, 52217, 52211, 52213, 52456, 522045, E06B 330

Patent

active

056996373

ABSTRACT:
A plurality of elongated thermoplastic bar members, each bar member defining a pre-determined width, and a pre-determined thickness which is less than its width, and each bar member being made up of an outer facing panel, and an inner wall and intermediate spacer walls extending between the facing panels and inner walls at intervals, and defining therebetween generally elongated passageways, and at least some of the bars having interlock formations formed on the exterior of the facing panels, so that adjacent bars may be interlocking together, the interlock formations defining continuous tongue and groove slide members, permitting one bar member to slide relative to its adjacent bar members, and at least one of bar members having one panel free of the interlock formations, so as to provide a smooth finished exterior surface.

REFERENCES:
patent: 3475870 (1969-11-01), Birum, Jr.
patent: 3489199 (1970-01-01), Weikel et al.
patent: 4671035 (1987-06-01), Ridge
patent: 5044131 (1991-09-01), Fisher
patent: 5076033 (1991-12-01), Patsy, Jr.
patent: 5555695 (1996-09-01), Patsky, Jr.

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