Abstract: In some embodiments, a nesting grille may include an alpha link having a top alpha link grommet, a beta link, and a plurality of cross members. In some embodiments, each of the plurality of cross members are coupled to at least one of the alpha link and the beta link. In one embodiment, the top alpha link grommet is configured to receive one of the plurality of cross members. In one embodiment, the grille is configured to be moveable between an extended state and a retracted state, the grille coiled about itself with the alpha link disposed inside of the beta link when the grille is in the retracted state.

Abstract: In example implementations, a door monitoring sensor is provided. The door monitoring sensor includes a communication interface to transmit an alarm when a door operates outside of operational parameters of the door, an angular sensor to measure rotational movement of the a door, a movement sensor to detect movement along an x-y-z coordinate plane, a radar sensor to detect an object, a rechargeable power supply to provide power to the angular sensor, the movement sensor, and the radar sensor, and a processor. The processor is communicatively coupled to the communication interface, the angular sensor, the movement sensor, and the radar sensor. The processor is to determine that the door is moving outside of the operational parameters of the door and generate the alarm that is transmitted by the communication interface in response to determination that the door is moving outside of the operational parameters of the door.

Abstract: In example implementations, a vertical stacking door includes an end cap that is coupled to a panel. The end cap includes a body portion, a cam lever to rotate around an axis to generate a lift force to lift and separate an adjacent panel of a plurality of panels of the vertical stacking door, a first track wheel, a second track wheel, and a third track wheel.

Abstract: In example implementations, a bead saddle attachment component for a curtain is provided. The bead saddle attachment component includes a body, a plurality of bead saddle features on an exterior side of the body, a spacer bracket receiving feature on the exterior side of the body, and an alignment feature on the exterior side of the body.

Abstract: In example implementations, a method executed by a processor of a controller of a rolling door system is provided. The method includes receiving an alarm signal, determining a type of alarm associated with the alarm signal, and transmitting a control signal to operate a motor to open or close a rolling door in response to the type of alarm that is determined.

Abstract: Examples of the present disclosure provide an overhead door panel. The overhead door panel includes a pair of parallel glass panes, a metal frame with parallel lateral stiles oriented perpendicular to the pair of parallel glass panes, a first seal system located at a first lateral stile, and a second seal system located at a second lateral stile, wherein the first seal system and the second seal system engage with at least one glass pane of the pair of parallel glass panes and a lateral stile of the parallel lateral stiles of the metal frame such that the first seal system and the second seal system are between the at least one glass pane and the lateral stile.

Abstract: In example implementations, a braking system for a vertical stacking panel door is provided. The braking system includes a first rod, a strap coupled to the first rod, a second rod movably coupled to the first rod, wherein the second rod is to engage a linear ratchet when moved from a disengaged position to an engaged position, and a torsion spring coupled to the first rod and the second rod, wherein tension from the strap moves the second rod into the disengaged portion and the torsion spring moves the second rod into the engaged position when tension is lost on the strap.

Abstract: In example implementations, an end cap for a panel of a vertically stacking panel door is provided. The end cap includes a body to be coupled to an end of a panel of a vertically stacking panel door, a first track wheel coupled to the body, a second track wheel coupled to the body, and a vertical stability roller coupled to the body, wherein the first track wheel, the second track wheel, and the vertical stability roller are arranged along a vertical line, wherein the first track wheel is located vertically above the second track wheel and the vertical stability roller is located between the first track wheel and the second track wheel.

Abstract: A replacement link for a rolling grill enclosure having a longitudinal body disposed about a longitudinal axis, and a first end grommet contiguous with a first end of the longitudinal body, the first end grommet having a discontinuous first grommet body disposed about a first center.

Abstract: A closure system including a curtain configured to seal an opening, a wireless network having a plurality of channels, at least one transmitter coupled to the curtain and configured to communicate over the plurality of channels, and an operator operatively coupled to the curtain and configured to communicate over the plurality of channels, the operator and the at least one transmitter configured to communicate with each other over a selected one of the plurality of channels based upon communication interference detected on one or more channels.

Abstract: In example implementations, an adjustable speed operator governor release for a rolling fire shutter is provided. The adjustable speed operator governor release includes a shaft coupled to the rolling fire shutter, a gear on a first end of the shaft to engage a spring-loaded clutch during a fire, wherein the spring-loaded clutch is moved to disengage from a drive assembly and to engage the gear of the adjustable speed governor to operate the rolling fire shutter, and a linear speed adjusting mechanism coupled to the shaft and the gear to control a speed of free fall of the rolling fire shutter during the fire.

Abstract: In example implementations, an end cap for a panel of a vertically stacking panel door is provided. The end cap includes a body to be coupled to an end of a panel of a vertically stacking panel door, a first track wheel coupled to the body, a second track wheel coupled to the body, and a vertical stability roller coupled to the body, wherein the first track wheel, the second track wheel, and the vertical stability roller are arranged along a vertical line, wherein the first track wheel is located vertically above the second track wheel and the vertical stability roller is located between the first track wheel and the second track wheel.

Abstract: A closure system including a curtain configured to seal an opening, a wireless network having a plurality of channels, at least one transmitter coupled to the curtain and configured to communicate over the plurality of channels, and an operator operatively coupled to the curtain and configured to communicate over the plurality of channels, the operator and the at least one transmitter configured to communicate with each other over a selected one of the plurality of channels based upon communication interference detected on one or more channels.

Abstract: In example implementations, a guide member is provided. The guide member includes a first portion to receive a first fastener to a second guide member to form a guide assembly having a gap, wherein an endlock of a fire shutter is positioned within the gap, a second portion to receive a second fastener to a wall, a third portion folded against the second portion, a fourth portion bent at 90-degrees or greater to the third portion.

Abstract: A track of a vertically stacking door includes a vertical track, a first curved track portion, a second curved track portion, a first horizontal track portion coupled to the first curved track portion, and a second horizontal track portion coupled to the second curved track portion. The first curved track portion and the second curved track portion are split off from the vertical track and the first curved track portion and the second curved track portion each comprises multiple radii of curvature.

Abstract: In one embodiment, a closure system comprises a guide assembly having a channel defined by a first guide wall and a second guide wall. The closure system may include a retention bar extending into the channel from the first guide wall and a plurality of slats. Each slat of the plurality of slats may be configured to interlock with another of the plurality of slats. Each slat may have a retention groove with at least one sidewall configured and dimensioned to engage the retention bar to retain the slat within the channel.

Abstract: Examples of the present disclosure provide an overhead door panel. The overhead door panel includes a pair of parallel glass panes, a metal frame with parallel lateral stiles oriented perpendicular to the pair of parallel glass panes, a first seal system located at a first lateral stile, and a second seal system located at a second lateral stile, wherein the first seal system and the second seal system engage with at least one glass pane of the pair of parallel glass panes and a lateral stile of the parallel lateral stiles of the metal frame such that the first seal system and the second seal system are between the at least one glass pane and the lateral stile.

Abstract: In one embodiment, a closure system comprises a guide assembly having a channel defined by a first guide wall and a second guide wall. The closure system may include a retention bar extending into the channel from the first guide wall and a plurality of slats. Each slat of the plurality of slats may be configured to interlock with another of the plurality of slats. Each slat may have a retention groove with at least one sidewall configured and dimensioned to engage the retention bar to retain the slat within the channel.

Abstract: A lock module comprising a housing, a lock pawl, and an actuator. The lock pawl may be moveable between an extended position and a retracted position, wherein the lock pawl extends from the housing by a greater distance in the extended position than in the retracted position. The actuator may be configured to selectively couple to the lock pawl, the lock module being in a locked configuration when the actuator is coupled to the lock pawl. The lock pawl may be configured to move in a first direction as a closure moves from a first position to a second position and the lock pawl may be configured to move in a second direction as the closure moves from the second position to the first position. The first direction may be opposite the second direction. The lock pawl may be configured to block movement of the closure when the lock module is in the locked configuration.

Abstract: In example implementations, a method is provided. The method includes determining, by a processor, that a vehicle is approaching a door of a building based on a velocity vector of the vehicle, calculating, by the processor, a time of arrival of the vehicle at the door based on the velocity vector of the vehicle and a distance of the vehicle from the door, and controlling, by the processor, the door to begin opening at a time based on the time of arrival and an amount of time for the door to open such that the door is opened when the vehicle arrives at the door.