354results about "Movable stairways" patented technology

An insulated attic access cover which is easily installed from below the attic access opening and includes a flat panel with a central insulation portion, flanges which carry a seal and attachment points to secure the cover to the ceiling.

A ladder apparatus for providing access to an area over an elevated structure, the ladder apparatus including a housing secured to the elevated structure; a ladder pivotally mounted to the housing, the ladder means including an upper ladder section and at least one lower ladder section mounted to the upper ladder section; and a motorized deploying mechanism structured to controllably allow the ladder apparatus to be pivotally and gravitationally deployed from a stowed configuration to a partially deployed configuration, controllably allow the at least one lower ladder section to be longitudinally and gravitationally deployed from the partially deployed configuration to a fully deployed configuration, longitudinally retract the at least one lower ladder section from the fully deployed configuration to the partially deployed configuration, and pivotally retract the ladder apparatus from the partially deployed configuration to the stowed configuration. A control mechanism operatively controls the motorized deploying mechanism. A power source provides electrical energy to the motorized deploying mechanism and to the control mechanism.

A ladder apparatus for providing access to an area over an elevated structure, the ladder apparatus including a housing secured to the elevated structure wherein the housing includes a housing mechanism having a central opening, a ladder pivotally mounted to the housing mechanism wherein the ladder includes a first ladder section and at least one additional ladder section slidingly mounted to the first ladder section, first motorized deploying mechanism structured to pivotally displace the ladder to and from a stored configuration and a partially deployed configuration, second motorized deploying mechanism structured to linearly displace the at least one additional ladder section to and from a partially deployed configuration and a fully deployed configuration; and control mechanism structured to operatively control the first and second motorized deploying mechanism.

An adjustable stairway system provides access between a first elevation level and a second elevation level. The system includes a pair of expandable and retractable scissor stringers and multiple spaced apart treads joining the pair of stringers. The system further includes a first mounting assembly structured to allow a top portion of the stairway to be relatively permanently secured to a landing or other man-made structure, and second, different mounting assembly that allows a bottom portion of the stairway to be removably secured to natural terrain such as a beach. The system sometimes includes a control assembly to assist in expanding or retracting of the stairway.

An access ladder includes a plurality of sections connected together to telescope between an extended position and a retracted position that has an increasing reactive force to counterbalance the weight of the sections as they extend. A method for accessing a room with a ladder connected to a ceiling including the steps of moving the ladder to a fully extended position subject to an increasingly active force to counterbalance the weight of the ladder as it extends. There is the step of retracting the ladder into a retracted position in the ceiling.

Uprights and lateral or connecting posts to be used in conjunction with a gangway or other fall restraint equipment where the uprights and posts are created by cutting portions of integral, continuous pieces of tubular metal rather than welding smaller pieces of stock material together. Sidepost assemblies or handrails are created by connecting the uprights and posts together.

An automated pivoting stairway system that raises and lowers through use of a drive actuator to thereby provide access to above or below floor level areas or between an elevated area and the ground floor. The system may utilize modular sections to allow on-site assembly. The stairway may be pivoted at the top of the stairway by way of a pivot drive lever attached on either side of the top step pivot frame assembly so that access on or off the stairway may be directly off the front end of the stairway, or to either side. A separate frame member may extend from the pivot point along the side of the stairway opening to a predetermined distance. This frame member may serve as the anchor point for the base end mount of the actuator.

The actuator controls the length of stroke and the amount of torque that is required to operate the stairway up and down.

The instant invention includes a flexible fire-resistant thermally insulated composite structure designed in some embodiments to pass through an opening. The structure may be self-supporting due to the stiffness of various layers, and battens may contribute to the self-supporting capacity of the structure.

The flexible composite structure may have a collapsed transit configuration, allowing the structure to be compressed to more easily pass it through an opening, a rotable attachment to allow the structure to rotate away from the opening, and a releasable attachment for attaching the structure around an opening periphery. In another embodiment, the structure may also include a bottom and such a structure could provide shelter in conditions ranging from ambient environmental conditions to the extreme heat of certain fires.

The insulative structures of the instant invention are not limited to embodiments designed to rest on generally horizontal surfaces. For example, it may be desirable to utilize such a structure to block an attic fan, or other roof penetration, during certain seasons of the year. Such an embodiment may also include a releasable attachment configured for releasably attaching the installation periphery to a surface inclined from the horizontal.

A ramp where footboards are always smoothly and stably held in a horizontal position without being affected by soil, pebbles, and dust, and handrails can be held at a constant height. Footboard (3) are each horizontally supported at both ends between two gliders each composed of an upper chord member (1) and a lower chord member (2) that are arranged in parallel to each other. At either of the upper chord member (1) and the lower chord member (2), there is supported one end of an adjustment link for adjustably supporting the interval between the upper chord member (1) and the lower chord member (2), and at the other end, there is provided a position fixing member (9) for fixing the other end of the adjustment link at a predetermined position. Sockets (3A) for the handrails are installed in a vertical upright orientation, at side end surfaces of the footboards (3). Loosening prevention mechanisms for preventing loosening of supporting columns (23) of the handrails (22) are installed on the sockets (3A).

A post to be used in conjunction with a gangway or other fall restraint equipment where the post defines an aperture having an upper portion and a lower portion such that the upper portion is configured to allow a link of a chain to pass there through while the lower portion allows the link to pass through in one orientation but prevents the link from passing through in a second orientation traverse to the first orientation.

A handrail or a swing gate for fall restraint equipment comprising an outer rail constructed from a single, continuous piece of tubular metal, a midrail constructed from a single, continuous piece of tubular metal, and a toeboard constructed from a single, continuous piece of sheet metal, where the outer rail is constructed to receive portions of the midrail and toeboard for an integral construction.

A platform system comprising a platform structure having at least one modular platform unit with platform connection features on a side surface thereof to which other components can be connected, the other components including at least two of the following: another modular platform unit, a stair unit, a tower unit, a handrail unit, and a ladder unit. A stair assembly is connected to the platform structure via said connection features, the stair assembly comprising a plurality of stair units connected together to provide a number of steps equal to the sum of steps of the stair units.

The invention provides a staircase arrangement for use within a swimming pool. The staircase arrangement comprises a staircase and at least one suction device. The staircase includes a set of stairs, a bottom-facing surface and a wall-facing surface. Each of the at least one suction devices comprises an attachment portion for attachment to at least one of the bottom-facing surface and the wall-facing surface of the staircase and a suction portion suitable for establishing a suction connection with an interior surface of the swimming pool so as to secure the staircase to the interior surface of the swimming pool.

A thermal insulating cover is presented. The cover includes a top, a plurality of sides extending from the top and a wide base perimeter extending from the plurality of sides. The device may be formed as a unitary piece, or may be provided in two or more sections which are easily assembled together. A piece of foam, acting as a gasket may be affixed to the base perimeter.

The invention relates to a reinforced concrete stair with a local steel plate type sliding device on a support, which belongs to the field of the concrete structure and is mainly used for the building engineering. The reinforced concrete stair adopts a reinforced concrete cast-in-place plate-type stair, wherein the upper end of the reinforced concrete cast-in-place plate-type stair is integrally cast with a supporting construction member on a main body structure floor or a rest platform of the main body structure, and the lower end of the reinforced concrete cast-in-place plate-type stair is provided with a horizontally sliding support supported by the local steel plate. The setting method comprises the following steps of: on the lower surface at the lower end of a stair section plate and the upper surface of a lower-end supporting construction member, respectively arranging one row of upper embedded steel plates and one row of lower embedded steel plates which are pulled open for a space along the width direction of the stair section plate, correspond one by one vertically and extrude out of the support of a respective concrete surface; ensuring that the upper steel plates and the lower steel plates are in contact supporting; fully laying a graphite powder layer on the supporting surface; and keeping the rest of gaps as the gaps, or to be separated by a polystyrene foam plate. The reinforced concrete stair disclosed by the invention provides an economic technical measure convenient to implement for lightening earthquake damage to the building stair and the integral structure, and can be popularized and applied to the multi and high rise concrete building structure systems in a seismic area, especially to the frame structure.