The invention relates to a weight compensation device for a drive of a lifting door, for the position-dependent compensation of the weight force of a door leaf of the lifting door, with a force transmission unit which can be coupled to the drive in order to carry out an opening movement which raises the door leaf and a closing movement which lowers the door leaf, wherein at least one compression spring is provided which is arranged in such a way that it supports the opening movement. The invention also relates to a lifting door, in particular an industrial lifting door, which has a door leaf, with a drive, such as a motor, and with a weight compensation device according to the invention.

A movable wall panel system may include a bottom drop seal assembly that maintains a constant force relative to a floor portion of an environment through a damper. The movable wall panel system may include an automatic top seal assembly that seals a gap between the movable wall panel system and a ceiling of the environment. The moveable wall panel system may include multiple panels and a plurality of seals positioned between adjacent panels to seal a gap between the adjacent panels.

A system for a replenishment door of a vehicle includes a body having a port and defining a latch aperture, a door pivotably attached to the body with a hinge, a system controller, and a latch assembly. The door is pivotable between a closed position and an open position. The latch assembly is configured for securing the door to the housing in the closed position. Further, the latch assembly includes a housing and a light source disposed within the housing, the light source being configured to project light through the housing, and the system controller being configured to control an intensity of the light source.

A shutter control system for use with a network. The shutter control system includes a network device coupled to the network to communicate an indication. The shutter control system also includes a shutter controller configured to receive the indication, to determine if the indication meets a predefined condition, and, in response to the indication meeting the predefined condition, to communicate an actuation signal. A shutter device, having at least one motor, receives the actuation signal, and operates the at least one motor based on the received actuation signal.

The invention relates to a weight compensation device for a drive of a lifting door, for the position-dependent compensation of the weight force of a door leaf of the lifting door, with a force transmission unit which can be coupled to the drive in order to carry out an opening movement which raises the door leaf and a closing movement which lowers the door leaf, wherein at least one compression spring is provided which is arranged in such a way that it supports the opening movement. The invention also relates to a lifting door, in particular an industrial lifting door, which has a door leaf, with a drive, such as a motor, and with a weight compensation device according to the invention.

This high speed door (1), for closing or opening an opening made in a wall, comprises a bearing structure (3, 4) to which are attached a flexible curtain (2) and a drive system (5) enabling the curtain (2) to be moved from a closed position into an open position in which the curtain (2) is concertina-folded into the top of the opening. According to the invention, the bearing structure (3, 4) comprises two U-shaped vertical uprights (3) comprising a web (9) and two flanges (10) between which the curtain (2) is folded, each upright (3) being formed of at least one one-piece section piece (6) incorporating at least one cavity (7) oriented in the longitudinal direction of the section piece (6).

The invention relates to a weight compensation device for a drive of a lifting door, for the position-dependent compensation of the weight force of a door leaf of the lifting door, with a force transmission unit which can be coupled to the drive in order to carry out an opening movement which raises the door leaf and a closing movement which lowers the door leaf, wherein at least one compression spring is provided which is arranged in such a way that it supports the opening movement. The invention also relates to a lifting door, in particular an industrial lifting door, which has a door leaf, with a drive, such as a motor, and with a weight compensation device according to the invention.

The invention relates to a weight compensation device for a drive of a lifting door, for the position-dependent compensation of the weight force of a door leaf of the lifting door, with a force transmission unit which can be coupled to the drive in order to carry out an opening movement which raises the door leaf and a closing movement which lowers the door leaf, wherein at least one compression spring is provided which is arranged in such a way that it supports the opening movement. The invention also relates to a lifting door, in particular an industrial lifting door, which has a door leaf, with a drive, such as a motor, and with a weight compensation device according to the invention.

An improved vertical lift door roller assembly has a wheel pivotally mounted to a shaft. The shaft is placed within a spring loaded locking cylinder. The locking cylinder is movable between a first position where it restricts pivoting of the wheel and a second position where the wheel is able to pivot. The door roller assembly is mountable to a support a vertical lift door, such as a bracket or a hinge. The roller wheel can be pivoted to decouple the roller from a vertical lift door wheel track and to reseat the wheel in the track.

The invention relates to a weight compensation device for a drive of a lifting door, for the position-dependent compensation of the weight force of a door leaf of the lifting door, with a force transmission unit which can be coupled to the drive in order to carry out an opening movement which raises the door leaf and a closing movement which lowers the door leaf, wherein at least one compression spring is provided which is arranged in such a way that it supports the opening movement. The invention also relates to a lifting door, in particular an industrial lifting door, which has a door leaf, with a drive, such as a motor, and with a weight compensation device according to the invention.