Abstract: A building including an upper wall portion and a lower wall portion and a bi-fold door assembly mounted within an opening therein. The wall portions have front surfaces facing outwardly of the building and the upper wall portion is disposed in a plane intersecting the plane defined by the lower wall portion. The upper wall portion is sloped downwardly and outwardly of the top thereof to a position overlying the lower wall portion and the plane defined by the lower wall portion is a generally vertical plane with the top of the upper wall portion being disposed in or near the generally vertical plane. The bi-fold door assembly is movable between raised and lowered positions within the opening in the wall portions and includes an upper door section and a lower door section. The upper door section is hinged to the lower door section with the door sections having front surfaces facing outwardly of the building and rear surfaces facing inwardly of the building.

Abstract: An overhead door including an upper door panel which is hingedly mounted to a horizontal header of a doorway and to a lower door panel. The door is moveable between a first, closed position wherein the door panels are vertically aligned and cooperate to close the doorway and a second, open position wherein the door panels are in a folded, generally horizontal, and parallel relation. Brace members are provided pivotally mounted to the upper door panel and adapted to engage the vertical door jambs when the door is in its second, open position to provide an angular support therebetween. The brace members are held by cables extending from the lower door panel allowing rollers located at the bottom edge of the lower door panel to engage and roll upon the vertical door jambs when the door is moved between its open position and adjacent to its closed position.

Abstract: An overhead door, particularly intended for use in a structure having a wide opening, includes an upper section pivotally mounted by hinges to the header beam of the structure, and a taller lower section pivotally mounted to the bottom of the upper section by hinges. Guide tracks are mounted on the side door jambs of the building, and guide rollers are mounted adjacent each lateral side edge of the lower section arranged to be movably captured by the guide tracks during folding and unfolding of the door in opening and closing. A plurality of lift cables are connected at one of their ends to laterally spaced positions along the width of the lower door section and at the same height preferably above its vertical midpoint but below the point where the upper and lower sections are hinged together by a distance equal to or greater than the height of the upper section. The opposite ends of the lift cables are connected to a counterbalance.

Abstract: A locking device for center fold hangar doors having an upper leaf and a lower leaf arranged when closed in vertically superimposed relation for movement relative to one another on a fixed horizontal axis to an elevated open position. A device is affixed to the abutting edges of the upper and lower leaf portions of the door having right angularly disposed telescopically positioned tubular members, one of which is pivoted to the doors on said horizontal axis and the other of which is secured at its outermost end to a bracket forming a portion of the device positioned in horizontally spaced relation to the doors. Locking means alternately secures the telescopically positioned tubular members to one another or permits their free telescopic movement. The device serves to lock the upper and lower leaf portions of the hangar door in vertically superimposed relation when the door is closed.

Abstract: An energy efficient garage door construction comprising a plurality of interconnected door sections. Each of the sections includes a pair of symmetrical metal panels forming the opposed sides and long edges of the section, and an expanded polystyrene core flanked by a pair of wooden stiles with the metal panels adhesively bonded to the core and stiles. The metal panels form oppositely facing recesses along one side edge and tongues along the other side edge so that adjacent panels interfit to create a baffle effect. The wooden stiles give the door sections extra strength and rigidity, while also serving as a reinforcement plate for mounting locks and other door hardware on the end portions of the door sections.

Abstract: A bi-fold door assembly for a building. The door assembly includes an upper door section and a lower door section hinged to one another together with a door track mounted in an upwardly and inwardly inclined position. Additionally, the bottom of the lower door section cooperates with the door track for guided raising and lowering movement of the bi-fold door. The door assembly may also include an automatic opener operatively associated with the upper and lower door sections. When provided, the automatic opener may include a battery powered electrical motor together with a battery operatively associated with a solar panel for recharging thereof.

Abstract: A window assembly for a vehicle cab having first and second frames and a window horizontally divided into upper and lower sections. The upper section of the window is pivotally mounted to the top rail of the second frame which is totally surrounded by the first frame. The lower window section is hinged to the bottom of the upper window section and has a guide member on its bottom edge which mates with side guide rails formed in the second frame. The window is opened and closed by hydraulic cylinders which positively position and retain the window in a desired position regardless of the vibration or rocking motion experienced by the vehicle as it traverses over uneven terrain. Furthermore, the entire second frame can be opened by pivoting it about the upper edge of the first frame. In so doing, an alternative escape route is provided for leaving the confines of the cab.

Abstract: Vertical and non-vertical collapsing panel closures for various applications are disclosed. The closure has reduced stacking height when collapsed and possesses a more energy efficient panel section guide roller system operating with a more economical and versatile upper and lower guide roller track arrangement. An insulated closure having an interior flush surface and an exterior rail and stile facade is achieved. A more simplified variable dynamic closure counterweighting system is provided.

Abstract: A vertically collapsing closure system comprising a door consisting of a plurality of rectangular panels in a side-by-side arrangement with each said panel being hingedly connected to each adjacent panel, and a means for operating the door to the full open position by causing the panels to rise vertically until at the height of the opening and then to fold or collapse into a compact terminal stack configuration and then to operate in reverse completing descent vertically once again fully closing the involved opening.

Abstract: A structure for mounting and apparatus for opening, closing, and locking a large, overhead door is adapted for buildings constructed on terrain which is not level and having floor and overhead structures that conform to the terrain. A sloping overhead truss spans a door opening and includes a widened faceplate along the length of its span to accommodate mounting a large overhead opening door along a horizontal line between vertical columns. A combination manual and automatic electrically powered door opening apparatus includes a counterweight, a coil chain and sheave for manual operation which is interchangeable with an electrically powered motor for automatic operation, all connected to a common lift cable which applies substantially vertical lifting force to the lower edge of the door for opening. Bias means for causing initial folding of door sections for opening, and locking apparatus for resisting folding of the door sections to prevent opening are also provided.

Abstract: A structure for mounting and apparatus for opening, closing, and locking a large, overhead door is adapted for buildings constructed on terrain which is not level and having floor and overhead structures that conform to the terrain. A sloping overhead truss spans a door opening and includes a widened faceplate along the length of its span to accomodate mounting a large overhead opening door along a horizontal line between vertical columns. A combination manual and automatic electrically powered door opening apparatus includes a counterweight, a coil chain and sheave for manual operation which is interchangeable with an electrically powered motor for automatic operation, all connected to a common lift cable which applies substantially vertical lifting force to the lower edge of the door for opening. Bias means for causing initial folding of door sections for opening, and locking apparatus for resisting folding of the door sections to prevent opening are also provided.

Abstract: A structure for mounting and apparatus for opening, closing, and locking a large, overhead door is adapted for buildings constructed on terrain which is not level and having floor and overhead structures that conform to the terrain. A sloping overhead truss spans a door opening and includes a widened faceplate along the length of its span to accommodate mounting a large overhead opening door along a horizontal line between vertical columns. A combination manual and automatic electrically powered door opening apparatus includes a counterweight, a coil chain and sheave for manual operation which is interchangeable with an electrically powered motor for automatic operation, all connected to a common lift cable which applies substantially vertical lifting force to the lower edge of the door for opening. Bias means for causing initial folding of door sections for opening, and locking apparatus for resisting folding of the door sections to prevent opening are also provided.

Abstract: A combination security shutter and awning assembly adapted to be secured to a wall of a building such as a store front or the like having one or more wall openings therein such as doors, display windows, and the like. The assembly includes upper and lower sash portions which are positionable to an opened awning position wherein the sash portions are disposed above the wall openings and function as an awning which is pleasing to the eye and which provides an unobstructed passage or view of the various wall openings. The sash portions of the assembly are also selectively positionable to a closed security shutter position whereby access to the wall openings is prevented by relatively burglar-resistant panels. The assembly includes a frame rigidly secured to the wall about the wall openings and is adapted to carry the upper and lower sash portions each of which mounts at least one protective panel.

Abstract: A covering device for an open topped vehicle container, the covering device being movable laterally of the container to one side to uncover the open top, the cover being preferably flexible and anchored along said side of the container so that the cover folds as the device uncovers the open top. In the preferred embodiment, the device has two pivoted parts which fold together as the device uncovers the open top.

Abstract: A closure consisting of a bifold door which is weight balanced in any given position and which, when fully opened, occupies the minimum of space. The door consists of two unequal rectangular bifold sections, the smaller of said sections being the upper section and is pivotally attached along one longitudinal side to the frame or beam at the top of the opening to be closed and the other longitudinal side is pivotally attached in an opposite pivotal direction to the lower, larger rectangular section. The lower section is connected by a system of cables and pulleys to a counterweight which applies an upward force to the bifold door which is equal to the weight or downward force of the bifold door when in a closed, or a partial or fully opened position. When fully opened, the upper rectangular section has pivoted to a position at right angles from its closed position and the lower rectangular section has pivoted 180.degree. in relation to the upper section so as to be folded directly under said upper section.

Abstract: A cargo container is presented wherein entrance thereto is made by means of two low profile bifold doors comprising upper and lower door sections. The lower door section is foldable onto the upper door section by means of a continuous longitudinal hinge interconnecting the two while the top door section has therein a slide and track arrangement whereby the folded door assembly may be stored atop the container. An adjustable shelf is provided with pin latches securable by means of metallic springs which allow a single operator to securedly engage or disengage the various pins and subsequently maneuver the positioning of the shelf.