Abstract: An apparatus for covering an opening in a structure may include spaced rails positioned at opposed sides of the opening. Each rail includes a channel and a is curtain movable along the rails to cover and uncover the opening. A locking bar is attached to one end of the curtain. The locking bar has opposed end portions received in the channels, and a locking channel is positioned close to the ends of each rail to receive the bar. The locking channel is disposed at an angle relative to the channel and the bar is selectively received in the locking channel to lock the curtain in a position covering the opening. In some embodiments the locking bar includes a length that spans the distance between the side rails and is selectively locked in the sill along at least thirty percent of the length.

Abstract: A door system having a sectional door (D) moveable between an open position and a closed position, a track system (T, T1) guiding movement of the sectional door, and an operator system (10) driving movement of the sectional door, said operator system including a motor assembly (42) having an adjustable housing (48) and capable of pivotal movement to a door locking position, said adjustable housing having a base section (70), an extendable section (72), and a latching mechanism (100) for maintaining the extendable section in a desired position and for permitting selective axially repositioning of the extendable section relative to the base section.

Abstract: An overhead garage door (10) includes a plurality of panels (11) each carrying rollers (12) which ride in a track assembly (15). The track assembly (15) includes a generally vertically positionable component (16), a generally horizontally positionable component (17), and an arcuate transitional component (18) positioned between the vertical component (16) and the horizontal component (17). The vertical component (16) is generally U-shaped in end profile having a base portion (22) with branches (20, 21) extending from the edges thereof. The vertical component (16) is provided with a plurality of spaced separating systems (25), each of which includes a web (26) extending across the base portion (22) and the slots (28, 29) in the branches (20, 21). A selected portion of the length of the vertical component (16) may be removed by inserting a tool in the slots (28, 29) of one of the separating systems (25) and twisting it to break the webs (30, 31) adjacent to the slots (28, 29).