Abstract: An overhead door having a floating spring adjustment is presented. Tension is applied to a torsion spring while the door is in the open, minimal tension state. One end of the torsion spring is fixed to a spring tension trolley. The trolley translates within a trolley guide mounted to the building structure. The other end of the torsion spring is fixed to a shaft running through the torsion spring. This allows the torsion spring to change in length as the number of coils shrink and grow through door operation thereby eliminating the “snake-like” or serpentine appearance from an improper fixed torsion spring length.

Abstract: A closure locking design is presented that is more resistant to a displacement/dislodgement force. A closure end strip is fixed to a closure end and received by a closure guide first section. A rotatable tube and hook assembly run vertically within a closure guide second section. When rotated to a locking position a hook member of the tube and hook assembly rotates through a slot cut in the guide and through a cutout in the closure end strip to restrictively engage the closure.

Abstract: A lock for a retractable door that is moveable along a track may include a pin assembly coupled to the door and moveable with respect to the door from a retracted configuration to an extended configuration. A biasing element may bias the pin toward the extended configuration. A strike plate may be in the track and be configured to mate with the pin assembly. The door may be prevented from moving along the track when the pin assembly is mated with the strike plate.

Abstract: An overhead door guide cover that includes a first leg and a second leg separated by an inter-hinge area. A first end of the inter-hinge area is joined with the first leg at a first hinge. A second end of the inter-hinge area is joined with the second leg of a second hinge. The second leg is for engaging a door guide assembly; and the first leg is for engaging a structure wall.

Abstract: A multi-panel overhead stacking door which allows for the addition of multiple panels across an opening width. A vertical extrusion acts a guide for the panel above and/or below it. The vertical extrusion serves as a moving guide which thereby allows for the relatively easy addition of multiple panels. At each end of the door is a series of formed parts that are attached to the ends of the end panels and movably maintained with door guides. The assembled door is driven by, for example, a driven shaft, positioned at the top of or above the door opening. The shaft comprises drums to windingly and unwindingly receive a lifting member. The lifting member runs from the drum to the bottom panel assembly behind each vertical extrusion.

Abstract: A fabric fire rated door is described. The door utilizes a fire resistant fabric curtain with an end lock attachment. A tubular steel shaft is driven by an internal tube motor. The shaft is supported to minimize deflection. Single door shafts can also be joined together with a coupler shaft to create infinitely wide doors. The coupler shaft is spring loaded to act as a take up reel for a coupling curtain which will overlap each adjacent single door shaft. All curtains are attached to the same bottom bar. A hood covers the shaft, curtain, and the supports that run across the width of the door. The curtain travels over these horizontal supports as it drops down through the hood opening. The horizontal supports keep the curtain in position for proper seal during a fire/smoke event.

Abstract: A sectional overhead door protector is described. In a preferred embodiment an impact bar assembly is fixedly mounted to a door panel to protect the sectional overhead door from inadvertent impact. When the impact bar assembly is struck a force vector is generated inward towards a wall and biased to an outside of the door panel preventing stress on the door.

Abstract: A closure is described. In a preferred embodiment a novel door roller is presented that is more resistant to a dislodgement force. The door roller comprises a bearing that rolls on a piece of round stock that is part of a door guide. When a dislodgement force is imposed on the door, the door bows and the bearing contacts the stock preventing dislodgement of the door roller from its track and allow the door to remain operational.

Abstract: A closure is described. In a preferred embodiment a novel door roller is presented that is more resistant to a dislodgement force. The door roller comprises a bearing that rolls on a piece of round stock that is part of a door guide. When a dislodgement force is imposed on the door, the door bows and the bearing contacts the stock preventing dislodgement of the door roller from its track and allow the door to remain operational.

Abstract: An overhead door guide cover that includes a first leg and a second leg separated by an inter-hinge area. A first end of the inter-hinge area is joined with the first leg at a first hinge. A second end of the inter-hinge area is joined with the second leg of a second hinge. The second leg is for engaging a door guide assembly; and the first leg is for engaging a structure wall.

Abstract: An overhead vertical closure, such as an overhead coiling door is described. A plurality of bumpers are spaced and fixed along the sides of the closure to center the curtain between the support brackets. In a first preferred embodiment, the geometry of the bumper is such that the vertical side and the extending sides meet in one or more obtuse angles. In a second preferred embodiment, the geometry of the bumper is such that the vertical side and the extending sides meet in a radius.

Abstract: An overhead coiling closure is presented. A repositionable impact bar assembly engages a guide bracket mounted adjacent to the coiling closure when the closure is in a closed position. When in an open position, the impact bar assembly is released from the guide bracket and attaches to the coiling closure to provide repositionable impact protection. As the coiling closure closes the impact bar assembly is once again engaged by the guide bracket.

Abstract: The disclosed invention prevents damage to a hood and its contents. In a preferred embodiment, a first and second support member are mounted on either side of an access opening. A cross member is slidably retained in a protective, starting position within the support members. The cross member is preferably positioned above the access opening in front of a coiling door hood such that a striking force directed at the hood first encounters the cross member. When struck, the cross member slidably retracts against a force assembly to dissipate the striking force and upon withdrawal of the striking force the cross member returns without human intervention to the protective, starting position.

Abstract: An overhead coiling door which includes a lintel seal interface assembly comprising a mounting bracket and a seal material sandwiched between a top and bottom row of brush bristles. The top row of bristles is shorter than the bottom row which provides relative rigidity to the flexible seal material and maintains greater cycle life. Further described are novel insulating material placement used to seal the building structure—door gaps. In one preferred design, a hinged guide cover has a first leg geometry to engage the structure and a second leg geometry to engage the curtain guide assembly to effectively seal gaps created by various amounts of curtain guide assembly setback.

Abstract: The present invention presents a method to permit emergency egress through an access opening covered by an overhead coiling fire door. Upon receiving an alarm notification from a first detector located on one side of the access opening the door is power closed to a predetermined height and held there for the predetermined time, then power closed to a fully closed position. Upon receiving a second alarm notification from a second detector located on the opposite side of the access opening the door enters into a secondary alarm condition. The door is power closed and awaits notification to initiate a secondary emergency egress sequence. The secondary emergency egress sequence comprises receiving a door opening notification, opening the door, holding the door open for a predetermined time, and reclosing the door. Upon primary power restoration or a return to a non-alarm condition the door returns to its preset open position.

Abstract: A vertically coiling door assembly that is used for emergency egress. Upon notice of a predefined alarm state, after a delay the door deploys by gravity, stopping upon contact with an obstruction. The door may be lifted at any time without power and after a set amount of lift powered movement is triggered moving the door to a preset height, pausing the door at that height, and then resuming gravity deployment. In the total absence of power the door may still be lifted, with resumption of gravity deployment upon removal of the lifting force.

Abstract: The disclosed invention prevents damage to a hood and its contents. In a preferred embodiment, a first and second support member are mounted on either side of an access opening. A cross member is slidably retained in a protective, starting position within the support members. The cross member is preferably positioned above the access opening in front of a coiling door hood such that a striking force directed at the hood first encounters the cross member. When struck, the cross member slidably retracts against a force assembly to dissipate the striking force and upon withdrawal of the striking force the cross member returns without human intervention to the protective, starting position.

Abstract: A folding accordion sweep partition assembly is presented. The partition has a plurality of partition panels, the panel having a front face, a rear face, a bottom edge, and two opposing open sided panel keyway channels. A hinge having two side walls, the side wall terminating in a hinge key hinges two panels by having a first hinge key slidably received and retained in a first partition panel keyway channel and a second hinge key slidably received and retained in a second partition panel keyway channel. The partition panel has a mounting bracket affixed to it, a bottom bracket removably retained to the mounting bracket, and a sweep affixed to the mounting bracket.

Abstract: An overhead coiling door which includes a lintel seal interface assembly comprising a mounting bracket and a seal material sandwiched between a top and bottom row of brush bristles. The top row of bristles is shorter than the bottom row which provides relative rigidity to the flexible seal material and maintains greater cycle life. Further described are novel insulating material placement used to seal the building structure—door gaps. In one preferred design, a hinged guide cover has a first leg geometry to engage the structure and a second leg geometry to engage the curtain guide assembly to effectively seal gaps created by various amounts of curtain guide assembly setback.