A modular system including a surface-defining assembly having a plurality of panels. Each panel includes a plate portion, a first connector disposed towards and extending along a first side of the plate portion, and a second connector disposed towards and extending along a second side of the plate portion. The first and second connectors of adjacent panels are configured to engage one another to thereby engage the plurality of panels with one another in side-by-side relation such that the plate portions cooperate to define a continuous surface of the surface-defining assembly.

A fire and disaster evacuation apparatus installed in a high-rise building includes a stationary frame; a front plate; a side plate; a bottom; a locking device; and a lever part, and its width is less than a thickness of an outer wall of the building. The apparatus can be mounted integrally with an outer wall of an apartment or a building and thus it can be mounted without changing the exterior of the building. The apparatus is formed in a thin structure so that it can be mounted at any place as long as an outer wall is 160 mm or more, and is located inside a wall body so that it does not affect the exterior of the building, and so that additional power is not necessary to drive the apparatus.

A patio railing assembly for a recreational vehicle having a ramp door includes a first side wall and a second side wall that are pivotably mounted to the recreational vehicle. The side walls each include a static portion and a slidable portion coupled to the static portion and movable between a retracted position and an extended position. An end wall of the patio railing assembly includes a first portion pivotably mounted to the first side wall and a second portion pivotably mounted to the second side wall. In a storage configuration, the first portion of the end wall is configured to nest within the first side wall, the second portion of the end wall is configured to nest within the second side wall, and the first and second side walls are configured to extend along one another with the slidable portions thereof in the retracted position.

Disclosed herein are attic stair assemblies, in which each attic stair assembly may include: a frame that may include: a first wall; and a second wall; a stair coupled to the frame closer to the first wall than the second wall; a floorboard disposed above the stair; a port extending through the frame and the floorboard; and a support frame removably coupled to the floorboard that may include: a first leg having a first leg upper end, wherein the first leg may be closer to the first wall than the second wall; and a second leg having a second leg upper end, wherein the second leg may be shorter than the first leg and may be closer to the first wall than the second wall; and a rail portion extending from the first leg upper end to the second leg upper end at a first acute angle to the floorboard.

A balustrade apparatus for providing a balcony or increased floor space comprising a balustrade railing, a support fixing for retaining the balustrade railing in a retracted condition, a balcony platform which is pivotably engagable with the balustrade railing and an actuation means for actuating the balustrade railing between the retracted condition and an extended condition which is different to the retracted condition. In the extended condition, the balcony platform extends horizontally, with the balustrade railing being spaced apart from its position in the retracted condition to form a balcony rail for the balcony platform. The balustrade railing includes first and second railing portions which are movable relative to one another such that the balustrade railing is vertically extendible in at least the extended condition.

A fire and disaster evacuation apparatus installed in a high-rise building, including a stationary frame; a front plate; a side plate; a bottom; a locking device; and a lever part, and its width is less than a thickness of an outer wall of the building. The fire and disaster evacuation apparatus has the effects that a resident stranded by a fire or a disaster in a building such as a high-rise building is able to safely and easily evacuate and escape to a lower floor by easily operating the apparatus, that the apparatus can be mounted integrally with an outer wall of an apartment or a building and thus it can be mounted without changing the exterior of the building, that the apparatus is lightweight and thus secures stability, that the apparatus is formed in a thin structure so that it can be mounted at any place as long as an outer wall is 160 mm or more, that the apparatus is located inside a wall body and thus it does not affect the exterior of the building, and that additional power is not necessary to drive the apparatus.

The present disclosure relates systems and methods involving movable/adjustable guardrails. An example system includes a frame weldment and a rail assembly attached to the frame weldment. The rail assembly includes a first post and a second post. The base portion of the first post is rotatably coupled to a first pivot point of the frame weldment and the base portion of the second post is rotatably coupled to a second pivot point of the frame weldment. The system also includes a top rail rotatably coupled between a top portion of the first post and a top portion of the second post. The system yet further includes an actuator configured to controllably adjust a configuration of the rail assembly between an extended configuration and a retracted configuration with respect to the frame weldment.

Apparatus to equip an existing stair case with no hand railing with hand railings with the purpose of aiding a person with reduced capacity to climb up and down stairs. The apparatus includes features that permit the system to adjust to a large inventory of existing stair cases and to be installed without making any damage to existing installation. The apparatus is comprised of oversteps, railings, fixed height railing supports, adjustable height railing supports, attachments to prevent tripping, a half step and hardware to attach all the pieces together such as bolts, nuts, butterfly nuts, washers and screws. No need for repairs to existing installation once the adjustable stair system with railings is removed. The apparatus is movable, re-usable and may be installed indoors and outdoors.

The present disclosure relates systems and methods involving movable/adjustable guardrails. An example system includes a frame weldment and a rail assembly attached to the frame weldment. The rail assembly includes a first post and a second post. The base portion of the first post is rotatably coupled to a first pivot point of the frame weldment and the base portion of the second post is rotatably coupled to a second pivot point of the frame weldment. The system also includes a top rail rotatably coupled between a top portion of the first post and a top portion of the second post. The system yet further includes an actuator configured to controllably adjust a configuration of the rail assembly between an extended configuration and a retracted configuration with respect to the frame weldment.

A modular system including a surface-defining assembly having a plurality of panels. Each panel includes a plate portion, a first connector disposed towards and extending along a first side of the plate portion, and a second connector disposed towards and extending along a second side of the plate portion. The first and second connectors of adjacent panels are configured to engage one another to thereby engage the plurality of panels with one another in side-by-side relation such that the plate portions cooperate to define a continuous surface of the surface-defining assembly.