Abstract: A collapsible safety railing system to be used with a roof-top hatch opening, the hatch opening having a hatch cover to open and close the hatch opening, the system including a plurality of post members configured such that each of the respective post members is pivotally coupled to a point proximate each respective perimeter corner of a base portion of the hatch opening, and such that the post members pivot between a substantially upright position and a closed position, one or more safety rails extending between adjacent ones of the post members on at least two sides of the hatch opening, a gate member provided at a side of the hatch opening at which the safety rails are not provided, and a linkage member to link the hatch cover to the collapsible safety railing system to move the post members to the substantially upright position when the hatch cover is in the open position, and to move the post members to the substantially collapsed position when the hatch cover is in the closed position.

Abstract: A remote controlled overhead ladder system including a ladder structure having at least a first section and a second section. The ladder structure can be mounted to a support structure located above an opening of the overhead surface, and can include a remote controlled lifting cable connected to the first and second sections such that upon receipt of a remote control signal, the lifting cable pivots the second section toward a front surface of the first section until the second section is oriented adjacent to the front surface of the first section, at which time the lifting cable pivots the first section and the adjacent second section as a group toward the overhead surface until the ladder sections are contained above the overhead surface.

Abstract: A remote controlled overhead ladder system including a ladder structure having at least a first section and a second section. The ladder structure can be mounted to a support structure located above an opening of the overhead surface, and can include a remote controlled lifting cable connected to the first and second sections such that upon receipt of a remote control signal, the lifting cable pivots the second section toward a front surface of the first section until the second section is oriented adjacent to the front surface of the first section, at which time the lifting cable pivots the first section and the adjacent second section as a group toward the overhead surface until the ladder sections are contained above the overhead surface.