A pivotal door assembly includes a door post and a door panel attached to the post via a hinge assembly. The hinge assembly includes a first partial hinge loop extending from the first hinge plate and partially around the door post, and a second partial hinge loop extending from the second hinge plate and partially around the door post. The first partial hinge loop and the second partial hinge loop together provide a clamping of the hinge assembly onto the door post. The first partial hinge loop and the second partial hinge loop slide circumferentially about the door post during pivotal movement of the door panel, and the door panel is pivotal by at least a circumferential amount that is sufficient to expose all hinge-aligned surface portions of the door post for cleaning during pivot. The hinge assembly may include a third partial hinge loop as well.

An example door system includes a panel to translate along a normal path between an open position and a closed position in front of a doorway in a wall. The door system further includes a first track to support the panel from an upper portion of the panel, and a second track to extend along the normal path proximate a lower portion of the panel. The door system also includes a spring to urge the panel toward the second track by a first force to maintain the panel in the normal path.

A telescoping door system includes a header that spans across a doorway. A trailing jamb and a lead jamb disposed a clear opening distance from the trailing jamb defines a clear opening of the doorway. A sidelite panel is coupled to the trailing jamb by at least one swing clear hinge; the swing clear hinge comprises a fixed gear portion intermeshed with a revolving gear portion. A slow slide panel and a fast slide panel move linearly within the header. The slow and fast slide panels are configured to create a first-sized opening when positioned in the header. The sidelite panel, the slow slide panel, and the fast slide panel are configured to pivot out of the header in a breakout position such that a trailing rail of the sidelite panel is disposed at least partially outside the clear opening and in front of the trailing jamb.

A guide pin support system may include: a first support plate; a second support plate pivotally attached to the first support plate; a first guide pin supported by the first support plate; a second guide pin supported by the second support plate and the second guide pin pivotable with respect to the first guide pin.

A vehicular door assembly that can be opened by both sliding and pivoting movements includes an outer frame portion and an inner door portion. One of the outer frame portion and the inner door portion is slidably mounted on the vehicle, and the other of the outer frame portion and the inner door portion is pivotally mounted on the vehicle. In a first embodiment, the outer frame portion is slidably mounted on the vehicle, and wherein the inner door portion is pivotally mounted on the outer frame portion. In a second embodiment, the outer frame portion is pivotally mounted on the vehicle, and wherein the inner door portion is slidably mounted on the outer frame portion.

A sliding door system and method is used in an enclosure that defines an inner area shielded against a High-Altitude Electromagnetic Pulse (HEMP). The HEMP shielded sliding door system includes an RF shielding door frame, an RF shielding door leaf mounted within an mechanical door leaf frame, a mechanical insertion and retraction assembly attached to both the mechanical door leaf frame and RF shielding door leaf and that operates to extend and retract the RF shielding door leaf into and out of the RF shielding door frame, a drive tube assembly operable to interact with and open and close mechanical door leaf frame (along with RF shielding door leaf) in a sliding motion, and a control assembly, including motor and an air regulator assembly. HEMP shielding air seals are activated when the RF shielding door leaf is inserted into the RF shielding door frame.

A vehicle door opening and closing apparatus includes a vehicle door, a rail configured to be mounted on a vehicle body, a roller unit mounted on the vehicle door, and configured to allow the vehicle door to open and close in a sliding mode in which the vehicle door is configured to slide along the rail and in a swing mode in which the vehicle door is configured to swing in a predetermined position of the rail, and a hold lock releasably holding the vehicle door in an open position or releasably holding the vehicle door in a closed position when the vehicle door is opened or closed in the sliding mode, respectively.

A filter door for closing a filter housing, in an industrial extraction system, wherein the filter door is fastened, with at least two locking elements relative to the housing surface wherein the filter door is pivotally arranged on one side by a slotted guide on the housing surface and is provided with a movable pivot axis. An industrial extraction system is also provided.

A door includes a panel assembly including a leading panel and a trailing panel. The leading panel is to be in substantially coplanar alignment with the trailing panel when the panel assembly is in a normal configuration. The leading panel is to be angularly displaced out of coplanar alignment with the trailing panel when the panel assembly is in a dislodged configuration. The door further includes a tension member to connect the leading panel to the trailing panel. The tension member is to resiliently urge the leading panel and the trailing panel toward each other in a horizontal direction. The tension member is to resiliently urge the panel assembly toward the normal configuration when the panel assembly is in the dislodged configuration.

An articulating bracket for a hanging door. The articulating bracket is a two-part structure having a top piece and a bottom piece rotatably coupled together. The bottom piece attaches to a door, and the top piece extends upward from the bottom piece, with a roller wheel attached to the top piece and adapted to roll along a rail mounted above the door. The articulating bracket is particularly advantageous for a pair of doors that are coupled together at their proximal edges. With a first articulating bracket attached at one extreme top position of the first door and a second articulating bracket at the other extreme top position of the second door, one of the articulating brackets is affixed to a supporting structure and the other is free to move with the roller wheel along the rail. As the roller wheel is moved, both of the brackets rotate to follow the outward rotation of the doors.