A hembar may define a front portion and a rear portion configured to slidably engage each other. The front portion and the rear portion, when slidably engaged, may define a slot configured to receive a piece of fabric. The front portion and the rear portion may be configured to clamp the piece of fabric within the slot. The front portion and the rear portion may be configured such that a width of the slot is adjustable. The front portion may define a first attachment surface and the rear portion may define a second attachment surface. The first attachment surface may define a rib. The second attachment surface may define a groove configured to receive the rib when the front portion is slidably engaged with the rear portion such that the piece of fabric is clamped within the slot.

A door assembly having a first side column and a second side column, wherein the first side column is positioned proximate a first side of the doorway and the second side column is positioned proximate a second side of the doorway, the first side column and the second side column each comprising a guide track and each guide track comprising a first portion and a second portion. The first portion of each guide track defines a first guide channel having a first depth extending from a rear portion of each guide track to a first engagement portion of each guide track, and the second portion of each guide track defines a second guide channel having a second depth extending from the rear portion of the guide track to a second engagement portion of each guide track, with the second depth being less than the first depth.

A freezer blast cell fabric roll up door is disclosed, wherein the freezer blast cell fabric roll up door is built to reliably withstand the high velocity wind loads and harsh freezing environments of a blast freezer. In one example, the presently disclosed freezer blast door comprises a drive or main assembly that further comprises a head plate bracket assembly, a brush bar assembly, a barrel assembly, a guide assembly, and a curtain assembly.

A roll-up wall system including a frame having a longitudinal axis, a first roller disposed in the frame, a second roller disposed in the frame, and a tube disposed in the frame. A screen may be connected to the tube. The screen may be supported by the first roller and the second roller. Further, the screen may be movable between a first configuration and a second configuration. In the first configuration, the screen is rolled around the tube which is spaced a first distance from the first roller. In the second configuration, the screen forms a barrier adjacent the frame, and the tube is spaced a second distance from the first roller. The second distance may be less than the first distance. Also, the roll-up wall system may be an acoustic barrier which achieves a Sound Transmission Class rating ranging from approximately 31 STC to approximately 53 STC.

The present invention is a bottom assembly for a breakaway door. The bottom assembly comprises a first mounting plate fixed on one of the faces of the breakaway door proximate to its bottom and a security edge formed of a loop of flexible material suspended from the bottom of the breakaway door. The security edge has a second tab sandwiched between the first mounting plate and the breakaway door to mount the security edge to the breakaway door. The loop of flexible material has an interior void at least partially filled with an internal cushion. The bottom assembly further includes a first padded bar including a bumper and a first tab extending from the bumper wherein the first tab is sandwiched between the first mounting plate and the breakaway door to mount the first padded bar to said breakaway door.

A retractable safety gate has a mesh fabric, a retracting mechanism connected with a first side of the mesh fabric, and a fastening mechanism connected with a second side of the mesh fabric. The retracting mechanism includes a bottom bracket, a fastening bracket, a first mounting tube, a locking assembly, and an energy storage assembly. The first mounting tube is rotatably mounted in the bottom bracket and the fastening bracket. The mesh fabric is wound around the first mounting tube. The locking assembly is mounted on the first mounting tube and selectively engages with the fastening bracket. The energy storage assembly is mounted in the first mounting tube and provides a resilient restoring force that drives the first mounting tube to wind the mesh fabric around the first mounting tube. The retractable safety gate rolls the mesh fabric up automatically and is convenient for use.

An illustrated side view of an exemplary garage door seal apparatus for preventing ices and snow buildup is presented. The exemplary garage door seal apparatus is useful for providing a better door to ground seal. The exemplary garage door seal apparatus further is useful for preventing freezing and protecting door and door motors from damage and can lower heating costs for people with heated garages and commercial shops. Additionally, the exemplary garage door seal apparatus prevents dirt, water, leaves, animals, such as ants, roaches, mice, etc. from entering an interior of a garage.

A slat assembly may include a slat having a first and second receiving portion. The first and second receiving portions being a pair of bent portions forming an acute angle. The slat assembly may further include an insulation layer lined on the slat. The slat assembly may further include a retaining mechanism disposed on the insulation layer to press a first portion of the insulation layer into the first receiving portion of the slat and to press a second portion of the insulation layer into the second receiving portion of the slat such that the retaining mechanism may cooperate with the first and second receiving portions to hold the insulation layer between the retaining mechanism and the slat without puncturing or penetrating the insulation layer with fasteners. A roller shutter including the slat assembly. A method of manufacturing a slat assembly and a method of manufacturing a roller shutter.

A high speed roll door is movable between an open and a closed position at an opening of a building. The door includes a flexible curtain and a pair of side columns. Each side column provides an inner track to guide the curtain in vertical movement and restrain the curtain from lateral movement during deployment and retraction. The curtain further includes multiple cross bars supporting the flexible curtain from one of the pair of side columns to the other. Each of the cross bars further includes a first longitudinal bar sandwiching part of the curtain; and a second longitudinal bar pivotally connected to the first longitudinal bar. The hinge has an axis of rotation parallel to the first and the second longitudinal bars. At least a wheel is rotatably affixed to each end of the second longitudinal bar to engage the inner track of each of the side columns.

The present invention is a breakaway door with a padded bottom bar to protect vehicles that collide with said breakaway door. The padded bottom bar is mounted adjacent the bottom of the breakaway door. It includes a padded bottom bar having a bumper, a first tab extending from the bumper, and a mounting plate. The mounting plate is fixed to the bottom of the door with the first tab sandwiched between the plate and the door to mount the bumper to the door. A bottom loop suspends from the bottom of the breakaway door. The bottom loop has a cushion and a second tab sandwiched between the plate and the breakaway door to mount the bottom loop too the breakaway door. The bottom loop provides additional sealing and security to the breakaway door.