Flexible or portable closure – partition – or panel – Plural and/or with rigid closure – Plural strip – slat – or panel assemblies
Patent
1990-05-07
1991-09-24
Purol, David M.
Flexible or portable closure, partition, or panel
Plural and/or with rigid closure
Plural strip, slat, or panel assemblies
160201, E06B 348
Patent
active
050506609
ABSTRACT:
Screening overhead door apparatus for screening a doorway, and for addition to existing overhead door apparatus, including a plurality of additional door panels hingedly attached together and provided with openings covered with foraminous material. An L-shaped track for mounting the additional door panels is attached to the existing track, and positioned inside and beneath the existing track. The additional door panels are mounted to the additional track by rollers journaled to brackets attached to the panels. As the rollers run along the track, the additional door panels move from a first position closing the doorway to a second position clearing the doorway. The uppermost panel is attached to the uppermost set of rollers by a slidable bracket, thus permitting the distance between the additional track and the uppermost edge of the panel to be easily altered. The uppermost panel edge is releasably attached to the top edge of the doorway in suitable manner such as magnetic, mutually attractive strips affixed to both the top edge of the doorway and the uppermost panel edge, or a releasable latch applied to both the doorway and the uppermost panel edge to latch them together. Counterweighting apparatus is provided for counterbalancing some of the weight of the screen door, to facilitate the lifting and opening of the screen door.
REFERENCES:
patent: 2072092 (1937-03-01), Blodgett
patent: 3021896 (1962-02-01), Buono et al.
patent: 3103967 (1963-09-01), Gaschen
patent: 3104699 (1963-09-01), Wolf et al.
patent: 3226144 (1965-12-01), Lomaz
patent: 4276919 (1981-07-01), Walters
patent: 4793397 (1988-12-01), Whiteman
Bleichwehl Ralph E.
Nason Jeff M.
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