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US 6,112,799 AGranted
Wind-resistant sectional overhead door
AssigneeWayne-Dalton Corp.
InventorsWillis J. Mullet, Allen C. McDowell, David C. Allis
Life of this patent
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AssigneeWayne-Dalton Corp.
InventorsWillis J. Mullet, Allen C. McDowell, David C. Allis
Estimating the term…
A wind-resistant sectional overhead door (21) selectively moveable between an open position and a closed position relative to a door opening defined by spaced vertical jambs (23, 24) and a horizontal header (25) extending therebetween including, a plurality of elongate horizontal panels (40-43) pivotally connected at the top and bottom edges (48, 49) of adjacent of the panels, roller tracks (31, 32) mounted on the vertical jambs to either side of the door, roller shafts (65) mounted at the ends of the panels, guide rollers (66) carried by the roller shafts and engaging the roller tracks, and restraining members (70, 170) for limiting axial movement of the roller shafts, whereby the roller shafts and the panels are tension-loaded when the door is in the closed position to prevent buckling of the panels under applied wind forces. The restraining members may be replaced by or supplemented with tension rod assemblies (225, 325). The performance of the door may be enhanced by utilizing header lock mechanisms (95, 395), beam assemblies 285, and bottom cleat assemblies 290.
A wind-resistant sectional overhead door selectively moveable between an open position and a closed position relative to a door opening defined by spaced vertical jambs to either side of the door and a horizontal header extending therebetween comprising, a plurality of elongate horizontal panels pivotally connected at the top and bottom edges of adjacent of said panels, roller tracks adapted to be mounted on the vertical jambs, roller shafts mounted at the ends of said panels, guide rollers carried by said roller shafts and engaging said roller tracks, and restraining members for limiting axial movement of said roller shafts, whereby said roller shafts and said panels are tension-loaded when the door is in the closed position to prevent buckling of said panels under applied wind forces.
A wind-resistant sectional overhead door selectively moveable between an open position and a closed position relative to a door opening defined by spaced vertical jambs to either side of the door and a horizontal header extending therebetween comprising, a plurality of elongate horizontal panels pivotally connected at the top and bottom edges, roller tracks adapted to be mounted on the vertical jambs, roller shafts mounted at the ends of said sections, guide rollers carried by said roller shafts and engaging said roller tracks, and tension rod assemblies extending the length of said panels and adapted to be interconnected with the jambs when the door is in the closed position, whereby said panels are tension-loaded to prevent buckling of said panels under applied wind forces.
A wind-resistant sectional overhead door movable between a closed position and an open position relative to a door opening defined by spaced jambs and a connecting header comprising, a plurality of panels joined by hinges for articulation between the closed and open positions, guide rollers mounted at the ends of the panels on roller shafts, roller tracks adapted to be mounted to either side of the door opening for receiving said guide rollers, and means for tensioning said panels to prevent buckling of said panels under applied wind forces when the door is in the closed position.
Dependencies are inferred from the claim text.