Abstract: A thermal barrier configured to be rolled and unrolled while providing a thermal value of greater than about R=3. The thermal barrier comprises multiple layers including a first layer comprising a fiber mesh core and material selected from the group comprising: polyurethane, rubber, and polyvinylchloride, a second layer bonded to the first layer, the second layer comprising material selected from the group comprising: polyolefin foam, polyurethane foam and rubber based foam, and a third layer bonded to the second layer, the third layer comprising a thin film or fabric material selected from the group comprising: polyester, polyolefin, polyurethane and nylon, wherein the first layer has a greater length along the linear dimension than the second layer and the third layer.

Abstract: An overhead roll-up door assembly having a door controller, a door panel and a drum on which the door panel is wound and unwound to open and close a doorway, opening and closing of the door being controlled by the controller. The door assembly includes a safety system comprising at least one light, the at least one light being positioned to emit light proximate a first side of the doorway, the light from the at least one light being projected onto a lower boundary of the doorway and forming a strip or stripe proximate the first side of the doorway, wherein emission of the light from the at least one light is controlled by the controller in conjunction with the controller opening and closing the doorway.

Abstract: A thermal barrier configured to be rolled and unrolled while providing a thermal value of greater than about R=3. The thermal barrier comprises multiple layers including a first layer comprising a fiber mesh core and material selected from the group comprising: polyurethane, rubber, and polyvinylchloride, a second layer bonded to the first layer, the second layer comprising material selected from the group comprising: polyolefin foam, polyurethane foam and rubber based foam, and a third layer bonded to the second layer, the third layer comprising a thin film or fabric material selected from the group comprising: polyester, polyolefin, polyurethane and nylon, wherein the composite material maintains a consistent linear dimension within about 1% of total length in a coiled configuration compared with a linear configuration.

Abstract: An overhead roll-up door assembly having a door controller, a door panel and a drum on which the door panel is wound and unwound to open and close a doorway, opening and closing of the door being controlled by the controller. The door assembly includes a safety system comprising at least one light, the at least one light being positioned to emit light proximate a first side of the doorway, the light from the at least one light being projected onto a lower boundary of the doorway and forming a strip or stripe proximate the first side of the doorway, wherein emission of the light from the at least one light is controlled by the controller in conjunction with the controller opening and closing the doorway.

Abstract: A safety curtain and system includes multiple light emitters and multiple light receivers to detect traffic approaching a doorway. The safety curtain my include pairs of multiple light emitters and receivers positioned on both sides of a passageway (doorway) so as to detect approaching traffic. The multiple light emitters and light receivers may detect a height of an approaching traffic (e.g., person or vehicle) and initiate warning lights of a possible door closing. The detected approach of traffic may cause the door to be stopped, reversed or slow down. The system may include a computer to monitor the signals from the receivers and may control the motion of the door.

Abstract: A safety curtain and system includes multiple light emitters and multiple light receivers to detect traffic approaching a doorway. The safety curtain my include pairs of multiple light emitters and receivers positioned on both sides of a passageway (doorway) so as to detect approaching traffic. The multiple light emitters and light receivers may detect a height of an approaching traffic (e.g., person or vehicle) and initiate warning lights of a possible door closing. The detected approach of traffic may cause the door to be stopped, reversed or slow down. The system may include a computer to monitor the signals from the receivers and may control the motion of the door.

Abstract: An overhead roll-up door assembly for a vertically moving door to permit and prohibit access to an opening, the door assembly having a door panel with two faces and opposing marginal and lateral edges, and at least two wind locks attached proximate each marginal edge. The at least two wind locks extend away from one face of the door panel in a direction substantially perpendicular thereto, and are spaced apart vertically along each respective side edge of the door panel. The assembly further includes a drum for winding and unwinding the door panel to permit and prohibit access to the opening, and, a pair of opposing parallel side columns aligned and spaced apart such that each of the opposing side edges engage one of the side columns in a manner in which at least a portion of the side columns guide vertical movement of the door panel.

Abstract: A wind lock for an overhead roll-up door, the wind lock having a first edge which is substantially straight and capable of extending substantially perpendicular vertically from a face of a door panel to which the wind lock attaches to, the wind lock including a second edge having an angled-beveled face, wherein the second edge extends at an angle from the first edge laterally across the face of an attached door panel is beveled with the face of the door panel so as to extend vertically from the face at an angle.

Abstract: An apparatus, a system and a method for removing porting, and using geometry to create a heat soaked surface area in an ice area related to door assemblies. Heat conducting material such as, e.g., aluminum, is used to conduct heat efficiently to prevent icing at the transition point between an end of a door panel and its vertical guide structures in applications where freezer environments must be maintained while permitting ingress into a freezer environment, egress from a freezer environment, or both.

Abstract: A door assembly having a flexible door panel wound and unwound on a drum or the like to selectively block or permit access through an opening, the flexible door panel having a stiffness, a width, and a length. The door assembly further includes vertically extending side columns disposed on opposite sides of the opening, the side columns being configured to engage a marginal edge of the flexible panel to vertically guide the panel while opening or closing. Attached to a leading edge of the door panel is a bottom bar having a greater stiffness than the door panel and a narrower width than a distance between the vertical panel guide assemblies. Bottom bar guides are disposed proximate a lower portion of the opening and are configured to engage a portion of the bottom bar only when the bottom bar is located in at least a partially closed position.

Abstract: An overhead roll-up door assembly for a vertically moving door to permit and prohibit access to an opening, the door assembly having a pair of spaced apart, parallel side columns for vertically guiding a door panel, the door panel having at least one wind lock attached proximate each marginal edge of the door panel, each of the wind locks having an angled portion facing the interior of the opening having a first durometer and a substantially rectangular portion having a second durometer different from the first durometer, the wind locks engaging the side column to prevent disengagement of the door panel from the side columns when a wind load is applied to the door panel.

Abstract: A door panel for an overhead roll-up door assembly having a first face, a second face, a top edge, and a bottom edge. The door panel is constructed by butt jointing at least two sub-panels together in a horizontal direction such that neither sub-panel overlaps the other and applying at least one strip of seaming material over each horizontal butt joint, the seaming material being adhered over each butt joint on at least the first face of the door panel. The door panel further includes at least one strip of seaming material adhered vertically along at least one face of the door panel extending from approximately the top edge of the door panel to approximately the bottom edge of the door panel, and being configured such that a top face of the vertical seaming material is substantially co-planar with a top face of the horizontal seaming material.

Abstract: A charging device for use with a door assembly is described. The charging device for use with a door assembly is configured to convert kinetic energy of linear motion to electromotive force and includes a rechargeable power source coupled to the charging device, wherein the linear motion is caused by movement of the door assembly to charge the rechargeable power source. Also, a charging device and method for wirelessly charging an electrical storage device on a door assembly includes a transmitting coil positioned proximate a door assembly and a receiving coil positioned on a door assembly for inductively charging the electrical storage device and for powering a senor for wirelessly sending an alert signal.

Abstract: An overhead roll-up door assembly for a vertically moving door to permit and prohibit access to an opening in a wall, the door assembly having a flexible door panel and side columns located proximate opposite sides of the opening. The side columns each include an arm configured to engage the door panel as the door panel moves vertically, the arms being configured to move in a first direction in response to a first threshold moment being applied to the arms by the door panel wherein movement of each arm in the first direction prevents the door panel from escaping the side columns. The arms may be further configured to move in a second direction in response to a second threshold moment being applied on the arms by the door panel in a substantially vertical direction perpendicular to and away from the door panel.

Abstract: A door assembly including a vertically moving door to permit and prohibit access through an opening which has a top, a bottom defined by a floor, and at least two sides, the door assembly. The assembly having a door body having upper and lower portions, and being mounted proximate the opening such that the lower end portion being proximate the floor when the door is in the closed position. A protective body is configured in connection with the door so as to be moveable between a first position under at least a portion of the door body lower portion when the door is in at least a partially open position and a second storage position. The protective body having at least one debris collecting surface, and opposing ends, the protective body being configured such that debris collected on the debris collecting surface will be urged toward one of the opposed ends.

Abstract: A system and method for detecting damage to a door system by detecting the presence or absence of a magnetic source attached to the door system for stopping motion or reversing motion of the door to prevent any further damage to the door system. For example, a roll-up type door may be damaged by a vehicle and pulled from its vertical support guides; detecting this event causes stopping of any motion of the door, such as opening or closing the door.

Abstract: A high-speed door assembly for selectively permitting and prohibiting access through an opening in a wall, or other blocking structure, the door assembly having a shaft or drum located proximate the wall or other blocking structure and outside of the opening, and the shaft or drum having a longitudinal axis, and, a flexible door panel attached to the shaft or drum so as to be capable of being wound and unwound about the drum for selectively permitting and prohibiting access through the opening, the door panel being wound on the shaft or drum in an orientation such that the door panel defines at least one vertical plane when unwound from the shaft or drum, the vertical plane being spaced farther from the wall than the longitudinal axis of the shaft or drum is spaced from the wall or other blocking structure.

Abstract: An apparatus, a system and a method for removing porting, and using geometry to create a heat soaked surface area in an ice area related to door assemblies. Heat conducting material such as, e.g., aluminum, is used to conduct heat efficiently to prevent icing at the transition point between an end of a door panel and its vertical guide structures in applications where freezer environments must be maintained while permitting ingress and/or egress from or out of a freezer environment.

Abstract: The present invention is directed to a door panel preferably for a sliding door assembly. The door panel includes an inner frame and a sheet stock substantially covering the inner frame. The inner frame includes a geometry that cooperates with a geometry of a door accessory for operable connection of the door accessory directly to the inner frame.

Abstract: An overhead roll-up door assembly for a vertically moving door to permit and prohibit access to an opening, the door assembly having a pair of spaced apart, parallel side columns for vertically guiding a door panel, the door panel having at least one wind lock attached proximate each marginal edge of the door panel, each of the wind locks having an angled portion facing the interior of the opening having a first durometer and a substantially rectangular portion having a second durometer different from the first durometer, the wind locks engaging the side column to prevent disengagement of the door panel from the side columns when a wind load is applied to the door panel.