A threshold includes a substantially vertically upstanding nosing extending along a longitudinal axis of the threshold and a substantially vertically upstanding dam spaced from and substantially parallel to the upstanding nosing. A threshold cap is disposed at least partially across a gap between the upstanding nosing and the upstanding dam. A support, which supports the threshold cap, is located at least partially within the gap. The threshold cap is adjustable between at least a raised position and a lowered position. The threshold cap is biased toward the raised position when the door panel of the entryway is in an open position. The threshold cap pivots about a pivot axis parallel with the longitudinal axis. The pivot axis is not a central axis of the threshold cap.

An ADA compliant shielded door is disclosed. According to one aspect, a door is configured to create a radio frequency (RF) seal when the door is sealed so that RF energy is restricting from passing through a gap between an outer periphery of the door and a door frame when the door is sealed. The door includes: at least one knife edge along at least part of the outer periphery of the door, each knife edge configured to project into a channel of a door frame in a direction parallel to a face of the door when the door is sealed. The door also includes at least one contact element along a length of a knife edge, the at least one contact element being configured to make electrical contact with a channel wall of a channel of the door frame when the knife edge projects into the channel.

A secure sliding closure having a modular frame and one or more sliding door is described. The modular frame defines at least one secure cavity and a portal and comprises a main frame and at least one door frame. The main frame comprises at least one frame upright spaced apart from at least one portal upright and a respective at least one top plate extending between the at least one frame upright and the at least one portal upright. The at least one door frame comprising a locking side upright spaced apart from a secure cavity upright and a door frame top plate. The modular frame defines at least one secure cavity and defines a portal. The one or more sliding door comprises a sliding leaf and a sliding leaf covering, the covering comprising one or more sliding door security panel.

A secure sliding closure having a modular frame and one or more sliding door is described. The modular frame defines at least one secure cavity and a portal and comprises a main frame and at least one door frame. The main frame comprises at least one frame upright spaced apart from at least one portal upright and a respective at least one top plate extending between the at least one frame upright and the at least one portal upright. The at least one door frame comprising a locking side upright spaced apart from a secure cavity upright and a door frame top plate. The modular frame defines at least one secure cavity and defines a portal. The one or more sliding door comprises a sliding leaf and a sliding leaf covering, the covering comprising one or more sliding door security panel.

A threshold seal apparatus for a doorway, the threshold seal apparatus comprising a floor-mountable channel portion, a seal configured to be received within the channel portion, and an actuation mechanism operable to move the seal with respect to the channel portion between a retracted position and an extended position in which the seal is configured to contact the underside of a door mounted within the doorway.

A threshold seal apparatus for a doorway, the threshold seal apparatus comprising a floor-mountable channel portion, a seal configured to be received within the channel portion, and an actuation mechanism operable to move the seal with respect to the channel portion between a retracted position and an extended position in which the seal is configured to contact the underside of a door mounted within the doorway.

Door sealing systems for providing an RF seal to a door to an enclosure such as an anechoic chamber are disclosed. According to one aspect, a door sealing system includes a door having an outer periphery and a plurality of extendable and retractable knife edges along at least a portion of the outer periphery. The door sealing system includes a door frame having a plurality of channels corresponding to the plurality of knife edges, each knife edge projecting outward in a direction parallel to a face of the door and into the corresponding channels when the door is in a sealed position. Further, the door sealing system may include channels in the door frame along which knife edges of the door frame move.

A magnetic attraction threshold contains: an accommodation holder, a stopper, and at least one magnetic element. The base includes an open segment, a first groove, and a second groove. The first groove includes a first opening, the second groove includes a second opening, and the first groove and the second groove are symmetrically formed inside the hollow accommodation holder. The stopper includes a stop sheet, a first fixing fence, and a second fixing fence. The first fixing fence and the second fixing fence extend from a bottom of the stop sheet respectively. The stop sheet includes a trench configured to accommodate the at least one magnetic element. The stopper is connected in the accommodation holder. The first fixing fence is movably inserted into the first groove via the first opening, and the second fixing fence is movably inserted into the second groove via the second opening.

A parallel sliding system, in particular deposit-sliding system, may include a leaf, in particular a window or door leaf, which can be displaced horizontally from a closed position, in which the leaf closes an opening, in particular a window opening or door opening, into a sliding position, in which the leaf can slide parallel to the opening into an open position exposing the opening, and at least one slide which, when the leaf is displaced horizontally from the sliding position back into the closed position, is displaced relative to the leaf in the vertical direction in order to close in a sealing manner at least one gap between the leaf and a horizontal spar of a frame profile which surrounds the leaf in the closed position.

A parallel sliding system, in particular deposit-sliding system, may include a leaf, in particular a window or door leaf, which can be displaced horizontally from a closed position, in which the leaf closes an opening, in particular a window opening or door opening, into a sliding position, in which the leaf can slide parallel to the opening into an open position exposing the opening, and at least one slide which, when the leaf is displaced horizontally from the sliding position back into the closed position, is displaced relative to the leaf in the vertical direction in order to close in a sealing manner at least one gap between the leaf and a horizontal spar of a frame profile which surrounds the leaf in the closed position.