Abstract: A panel member for use in an overhead door assembly has an outer frame defining a panel slot, with a swingable panel seated in the slot; the swingable panel is hingedly mounted to the outer frame by a hinge, retainers on the outer frame hold the swingable panel in the panel slot, however, under impact the panel is released from the retainers, whereafter it is free to pivot or swing about the hinge; after removal of the impact the swingable panel is snapped back into the retainers; the swingable panel thus accommodates impact forces which would otherwise dislodge the door from the track assembly.

Abstract: An inflatable dock seal for mounting about a loading dock opening to provide a cushioned seal against a vehicle has an upper inflatable curtain and a pair of inflatable side members; the side members inflate laterally of the opening directly towards each other along a phantom axis of inflation which is perpendicular to a phantom axis of entry of the opening; the side members are in particular L-shaped and inflate laterally of the L-shape; the inflatable foot of the L-shape forming a bottom seal extending from the wall to the leg of the L-shape spaced from the wall; the spacing of the leg of the L-shape from the wall provides a window for entry of natural light to the opening.

Abstract: An inflatable dock seal for mounting about a loading dock opening to provide a cushioned seal against a vehicle has an upper inflatable curtain and a pair of inflatable side members; the side members inflate laterally of the opening directly towards each other along a phantom axis of inflation which is perpendicular to a phantom axis of entry of the opening; the side members are in particular L-shaped and inflate laterally of the L-shape; the inflatable foot of the L-shape forming a bottom seal extending from the wall to the leg of the L-shape spaced from the wall; the spacing of the leg of the L-shape from the wall provides a window for entry of natural light to the opening.

Abstract: An inflatable dock seal for mounting about a loading dock opening to provide a cushioned seal against a vehicle has an upper inflatable curtain and a pair of inflatable side members; the side members inflate laterally of the opening directly towards each other along a phantom axis of inflation which is perpendicular to a phantom axis of entry of the opening; the side members are in particular L-shaped and inflate laterally of the L-shape; the inflatable foot of the L-shape forming a bottom seal extending from the wall to the leg of the L-shape spaced from the wall; the spacing of the leg of the L-shape from the wall provides a window for entry of natural light to the opening.