Abstract: A folding door having panels pivoted about vertical axes, top and bottom pivot assemblies, the bottom assembly comprising a bracket mountable beneath the door. The bracket defines a track along which a pivot block is guided. A sleeve is mounted in a vertical opening of the door and a pivot pin threaded into the sleeve, which pin is vertically adjustable relative to the door. The block has a vertical opening therein and the pivot pin has a lower end thereof extending therethrough. The pin and block have vertical teeth which are engaged when the pin is moved relatively downward onto said block and are disengaged when the pin is moved relatively upwardly. The pivot block and the bracket have vertically engageable teeth such that when the block is moved downwardly onto the bracket, the teeth are engaged, and when moved upwardly, the teeth are disengaged.

Abstract: An improved folding closure consisting of a plurality of panels joined at adjacent vertical sides by hinges. Means are provided on each panel for carrying a sweeper strip across the bottom of the closure. The carrying means include means for strengthening the bottom of each panel.

Abstract: A hanger is provided for suspending a slat of a multi-slat folding partition from an overhead track. The hanger has a shaft with a head at its upper end and a tang at its lower end. The tang is for engaging a hole through the top of the slat. A clip is on the shaft for holding the tang in the hole in the slat when the clip is in its lower position. A bogie is mounted on the shaft between the clip and the head of the shaft. The bogie engages an overhead track for suspending the slat for movement along the length of the track.

Abstract: A furniture is provided of a door formed by a series of uniformly sized panels which are movable from a closed position, in which they are coplanar one with another, to an open position, in which they are parallel and folded on one side of the furniture itself. The panels are connected together by means of a parallelogram linkage system which allows the panels to be moved from the closed position to the open position by means of a single control. The panels slide in an upper guide and a lower guide of the furniture and fold onto the left hand side of the furniture, allowing full access to the furniture itself. The parallelogram system comprises two sets of rods which are substantially identical and arranged between an upper side of the panels and the upper guide of the furniture and between a lower side of the panels and the lower guide, respectively.

Abstract: A bifold door assembly for an access port in a vehicle having a non-linear side wall. The assembly includes a pair of bifold doors, each having a planar outer panel disposed in a plane between an upper overhang and lower stepwell which extend outwardly of the vehicle side wall. The proximate edges of the outer panels seal to each other at the center of the access port and the distal edge of each is pivoted to a coplanar outer portion of a side panel. Each side panel has an inner planar portion pivotally attached to the vehicle interior and an intermediate portion of arcuate cross-section which runs from the outer portion to the inner portion closely past a respective side wall of the access port and in engagement with a seal. The outer panel is guided by a guide track on the overhang and a door operator pivots each side panel to fold the outer panel toward the side panel and inwardly of the access port.

Abstract: A folding screen is formed by a plurality of successively hinged, rigid, radiation-controlling planar panels supported so the screen can be opened (or extended) and closed (or collapsed). Adjacent panels are supported only at their edges, by a hinge member having symmetrical back-to-back tubular channels. The hinge member possesses sufficient rigidity to permit hinged, side-by-side coaction of the panels from a stacked, generally vertical relationship when the screen is collapsed, to an undulating planar relationship when the screen is opened, which relationship is essential if the screen is to be collapsed without binding. The screen is translatable on a pair of parallel, mono-level tracks, and operated by a flexible drive member extending along a rail and connected to the screen's leading ("lead") panel.A novel skylight includes a curb assembly, a "bubble" (or "dome") and a folding screen translatable to-and-fro below the bubble.

Abstract: The invention concerns a folding door of the kind having a primary panel pivoted about one axis on a frame, and a secondary panel articulated with respect to the primary panel and engaging a slide guide which is perpendicular to the pivotal axis of the primary panel.According to the invention, the two panels are articulated by links pivotally connected to each of the primary and secondary panels at second and third axes respectively, and the secondary panel engages the slide guide at a fourth axis located at an intermediate point along the panel, all the four axes being disposed centrally of the thickness of the panels; furthermore, the distance between the second and third axes is equal to the thickness of the panels, and the distance between the third and fourth axes is the same as between the first and second axes.With this construction, the door will open in a substantially smaller space than a conventional door and in addition it can be opened by a simple pushing action.

Abstract: There is disclosed a hinge structure for a bifold door assembly or the like, which includes first and second leaf members, the first leaf member comprising a generally flat mounting or leaf portion and a knuckle portion. The knuckle portion includes one or more and preferably a pair of coaxial spaced, knuckle portions which are of a generally semi-circular or U-shaped configuration in cross section, thus defining generally open knuckles. The second leaf member includes a generally flat mounting or leaf portion and a knuckle portion comprising a generally cylindrical closed knuckle with a pair of rod-like pins extending coaxially therefrom. The axial length of the closed knuckle is such that it may be disposed between the open knuckles of the first leaf member and the outwardly extending pins received in the open, U-shaped knuckle portions.

Abstract: A cabinet comprising a cabinet body, a rail continuously laid in the cabinet body, and a glass doors each of which consists of a plurality of glass strips foldably connected together. The glass doors are retracted into or withdrawn from the cabinet body while slidingly moving the glass doors such that they are folded along the rail, to open or close the whole of the front side of the cabinet body. A cabinet according to the present invention permits minimizing the space in which the glass doors are opened or closed, and opening the whole of the front side of the cabinet body.

Abstract: An enclosure for a tub or shower comprising a pair of sliding doors which can fold relative to each other along a vertical junction. Each door is supported by an offset hanger and is pivotal about its hanger. The hangers include rollers which slide within an overhead track. The doors can be functioned to slide along the track, to pivot about the hangers and to fold together to fully expose the interior of the enclosure.

Abstract: A method of aligning and subsequently fixing a horizontal track relative to a plurality of trolleys where the trolleys are movable along a straight line, and an improved bottom trolley and fixed structure.

Abstract: A swivel roller assembly to be mounted at the bottom end of a folding door stile which is movable in the plane of a doorframe during the opening and closing of the door. The roller assembly comprises a hollow outer member to be immovably fitted in the bottom end of the stile, a hollow inner member rotatably received in the outer member and adapted to be mounted astride the sill rail of the doorframe, and a roller rotatably mounted within the inner member for rolling engagement with the sill rail. The outer member bears on the inner member via a bearing washer, as of stainless steel, for swivelling motion relative to same.

Abstract: An obstruction sensing edge for a bifolding door includes a body secured to the door. The body defines an internal fluid chamber that is in fluid communication with a fluid actuated switch. The switch controls the opening and closing of the door. Defined on the body portion is an edge portion including a leading edge and side portions extending from the leading edge to the body portion. The leading edge and body portion are fabricated of elastomeric material such that upon engagement of the leading edge with an obstruction, the internal chamber is deformed changing the volume thereof and actuating the switch. The edge portion includes elongated fins extending transversely to the sides of the edge portion such that upon complete closing of the door, the fins seal the door.

Abstract: There is disclosed a pivot and support mounting arrangement for a pivotal door arrangement which permits the door to be adjusted quite easily with respect to the door frame. The arrangement includes a pintle assembly carried by the door and a support arrangement mounted proximate to a lower corner of the door frame, and receiving a projecting portion of the pintle assembly. The support arrangement includes a bracket having an elongate channel-like opening in which is mounted a pintle support block, and selective engageable means to prevent relative movement. A recess is formed in the pintle support block to receive the pintle end portion, and spring means is associated with the support block tending to bias it upwardly. In the assembled condition the weight of the door will overcome the biasing force provided by the spring and the engageable means will be inter-engaged to preclude movement of the support block relative to the bracket.

Abstract: This pivot assembly for a swinging or folding door can be readily adjusted for door height or position of the door pivot axis relative to the door jamb. An L-shaped bracket is connected into the corner between the floor and door jamb. The bracket has a number of discontinuities parallel to the floor to prevent translation. A pivot is mounted on the lower corner of the door, preferably by a plastic sleeve. The sleeve is threaded on the inside and a threaded pin is mounted therein. The lower end of the pin has means directly engaging the jamb bracket to prevent rotation and translation of the pin. To adjust the door in most embodiments it is lifted so that the head of the pin is out of engagement with the teeth in the slot. The pin is rotated by hand to move it up or down in the threaded sleeve. The pivot axis of the pin is adjusted by moving the pin to a desired position on the bracket.

Abstract: An electrically operated folding partition including a plurality of pivotally interconnected panels movable from a straight line, flat, closed and locked position to an accordion folded stacked open position in which the control system will automatically move the partition panels from their closed position to their open position or from their open position to their closed position upon actuation of a suitable control switch or the like.

Abstract: Preassembled self-locking guide and pivot pin cartridge assemblies are installed on the job site in folding doors rather than on the factory assembly line. Considerable labor is saved in manufacturing and a better installation is achieved. Both the guide and pivot pin assemblies feature molded nylon housings which conveniently snap into place on the folding door brace structure. Top and bottom guide pin assemblies are identical and interchangeable. A lower adjustable pivot pin assembly possesses more than one and one-half inch of full threads on the molded nylon housing and includes a hardened steel lock clip having snap on engagement with the housing and threaded engagement with the adjustable screw-threaded pivot pin. A cooperating lock nut is provided to secure the assembly after proper adjustment. Both of the guide and pivot pin cartridge assemblies are insertable as units on the doors and can be removed if necessary.

Abstract: An assembly for guiding movements of the non-pivotally supported one of a pair of hingedly interjoined bifolding panels, or the like, laterally across a door opening which includes a main body non-rotatably anchored in a mounting socket therefor bored inwardly of the upper or top edge of the one guide panel and including a vertically biased, laterally offset track engaging guide means cooperative with an overhead guide track such that the line of engagement between such offset guide means and the track is in proximity to the free or unhinged lateral edge of the guide panel whereby to increase opening movement of the panels and avoid binding between the track and guide means.

Abstract: An articulated window shutter which can be remotely opened to a fully opened position wherein both shutter elements are parallel to the wall of the structure in which the shuttered aperture is located and wherein the shutter operating elements are fully enclosed in the structure wall.

Abstract: A security screen is provided, adapted to be applied inside windows, doors or the like, to be kept hidden from view when not in use, and which is of the type that has vertical bars that are connected by angular links, and with the screens generally being provided in pairs, for latching and locking at about the center of a window or door with respect to which security is desired. Particularly unique adjustability and versatility features are embodied in the screen, and security fasteners are used to fasten components together.

Abstract: A bi-fold door assembly of the type adapted to be mounted in a doorway having opposing parallel jambs and a connecting header, the bi-fold door assembly including at least one jamb door pivotably secured to one jamb and a lead door having means hinging the same to the jamb door. In one embodiment, a header track having a U-shaped cross section having inner opposing legs with longitudinally disposed and transversely spaced flanges defining a longitudinal slot thereinbetween. The flanges slidably support a pivot assembly carried by the lead door to guide the lead door between its opened and closed positions.

Abstract: A two-sheet or double sided folding wall or door includes panel elements which are hinged in pairs along their inner edges to one another. To permit the door to be opened into a configuration wherein the panel elements are longitudinally aligned, and to permit the door to be closed into a fully folded position, horizontal brackets are mounted on at least one of each wall panel element pair. Bracket arms extend at an obtuse angle opposite the element in the closed position. A spring set between the free ends of the two opposing brackets exerts torsional forces around the panel element hinge axes. These forces act in a closing direction in a closed folding wall and in an opening direction in an open folding wall.

Abstract: A bi-fold door assembly including a pair of bi-fold door panels hinged together and having means for fixed pivotal location provided at the upper and lower disposed corners of the first door panel and means for guided pivotal retention provided at the upper and lower disposed corners of the second door panel, on respective guide tracks. The pivotal location means including pivot brackets of a new and different design formed from a single stamping and the other means including slide blocks having snap lock engagement with guide pins used therewith and which are of a particular design to best serve their intended purpose.

Abstract: The invention relates to a guidance arrangement for opening and closing panels which are articulated relative to each other and relative to a stationary frame. The arrangement is characterized by an articulated joint between a guide channel and the panel to be guided, this joint comprising a support plate holding two rollers, one guided by the inside of an omega-shaped channel, the other forming a rolling bearing for the panel.

Abstract: Pivot and guide rod assembly for bi-fold door includes plastic sleeve for mounting in door channel and supporting a pivot rod. A spring is arranged to urge pivot rod outwardly from sleeve, latch means being provided to retain pivot rod in retracted position during shipping and mounting of door.