Wayne-dalton Corporation

Allen C McDowell

Willis Jay Mullet

David C Allis

A door system is provided for a door opening defined by a pair of vertically spaced jambs, a header positioned near the vertical extremity of the jambs, and a floor supporting the jambs. The door system includes a door, a plurality of track sections, the door being movable on the track sections, and a support system coupled to the door. Engagement of the support system when the door is in a closed position enables transfer of forces applied to the door at least to one of the header and the floor. One embodiment provides for automatic actuation of the support system by movement of a pivoting motor assembly to a closed position. Another embodiment provides for manual actuation of the support system.

Support system for a sectional door

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 ( ) and a horizontal header ( ) extending therebetween including, a plurality of elongate horizontal panels ( ) pivotally connected at the top and bottom edges ( ) of adjacent of the panels, roller tracks ( ) mounted on the vertical jambs to either side of the door, roller shafts ( ) mounted at the ends of the panels, guide rollers ( ) carried by the roller shafts and engaging the roller tracks, and restraining members ( ) 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 ( ). The performance of the door may be enhanced by utilizing header lock mechanisms ( ), beam assemblies , and bottom cleat assemblies

Wind-resistant sectional overhead door

A cable control device (10) for a sectional overhead door (11) having a motor-driven counterbalance system (30) including, a spring-loaded drive shaft (31), cable drums (33) carried by the drive shaft, cables (C) attached to and interconnecting the cable drums and the door and forming and releasing cable wraps on the cable drums upon raising and lowering of the door, and retainers (60) associated with the cable drums engaging a portion of at least one cable wrap to maintain engagement of the cable wrap with the cable drums in the event of the development of slack in the cables.

Cable control device for sectional overhead door

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.

Growing community of inventors

Blue Springs, MS, United States of America

Allen C McDowell