Flexible or portable closure – partition – or panel – Plural and/or with rigid closure – Diverse types
Patent
1988-07-26
1990-06-12
Johnson, Blair M.
Flexible or portable closure, partition, or panel
Plural and/or with rigid closure
Diverse types
49446, A47H 100
Patent
active
049324535
ABSTRACT:
A prefabricated window system includes a rectangular main frame having a top frame portion, a bottom frame portion, and two side frame portions. The frame portions are extruded thermoplastic elements having substantially the same cross-sectional configuration. The frame portions include first and second channels which, in the side frame portions, serve to guide windows. The frame portions also provide a third channel which, in the side frame portions, serve to guide a screen member. The window system also includes a sill which is connected to the bottom frame portion. The sill includes an extruded thermoplastic element which is snap-connected to the bottom frame portion and which is braced with respect to the bottom frame portion. The sill covers the window channels of the bottom frame portion, and additionally has an overhang portion which covers the screen channel of the bottom frame element to keep debris out. The sill also has a trough for receiving the bottom edge of one of the windows when it is closed, and a seal which is directed toward the trough to limit air incursion.
REFERENCES:
patent: 3959926 (1976-06-01), Noecker et al.
patent: 4151682 (1979-05-01), Schmidt
patent: 4259813 (1981-04-01), Winner et al.
patent: 4555868 (1985-12-01), Mancuso
Rehan, catalog.
Hoover Randy C.
Ruby James A.
Johnson Blair M.
Rehau Ag & Co.
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