Abstract:
A stairway column with an integral ventilation duct. The present system includes a housing having sidewalls forming an interior volume with an open upper end. An opening is positioned along one of the sidewalls, where a plurality of stairs begin, leading from a bottom of the housing to the open upper end. A ventilation duct is placed within the interior volume of the housing beneath the stairs, extending from an intake aperture positioned at the bottom of the housing to an outlet aperture disposed at the open upper end. A fan may be installed within the ventilation duct for carrying air from the intake to the output. Additionally, one or more of the stairs may include drawers installed within the riser of the stair. In some embodiments, shelves and cavities for appliances are formed within one or more of the sidewalls, offering economical storage without requiring additional space.
Abstract:
Modules for converting at least a portion of an existing stairway into an alternating stairway are described. The modules may be installed over an existing stairway to improve accessibility of the stairway for the very young, elderly, ill, injured, or disabled. Installation of the modules creates an alternating stairway presenting a step height that is about one-half the step height of the existing stairway, without appreciably changing the horizontal run or height of the stairway.
Abstract:
Adjustable ramp ladder with alternating steps, which have at least a first set of steps with a plurality of inline plates joined by the adjacent sides thereof and a second set of steps with a plurality of inline plates joined by the adjacent sides thereof in such a way that the sets are joined in parallel by transverse cylindrical bars, which intersect the internal mid-point of the ends of each plate, and which allow each set of steps to be joined.
Abstract:
A stairway step assembly for use as an aid in climbing a stairway. The assembly is particularly useful to elderly and handicapped users who have difficulty climbing a standard stairway due to the height or rise of the steps thereof. The assembly provides a means of quickly, economically, and safely altering the step arrangement of the standard stairway with minimal or no modification to the permanent structure of the stairway. The assembly comprises a plurality of step members having predetermined horizontal dimensions and a predetermined height which is approximately one-half the height or rise distance of a standard step. The assembly further comprises an attachments mechanism for connecting the step members in place on the top or horizontal section of standard steps.
Abstract:
A stairway climbing aid having a plurality of individual adjustable half-step members fixedly connected to a rigid elongated channel member at spaced locations along the length of the latter to comprise a rigid assembly. The channel member is connected to each of the half-step members adjacent the rear end of the latter and at an elevation and angle such that the channel member will extend upon or adjacent the outer edge of the tread of each step. The half-step members are longitudinally adjustable so that their length can equal the depth of the particular steps to which they are applied. Thus, any stairway can be readily modified to facilitate travel thereover by persons having difficulty in taking full steps, by applying such an assembly to the steps along one side of the stairway, after adjusting the individual half-steps to the depth of the treads.
Abstract:
A ladder is provided which is especially adapted for shipboard use and which is safe and comfortable to use, of relatively light weight and occupying relatively small floor and overhead space. The ladder comprises a single stringer disposed between upper and lower deck or floor levels at a predetermined angle of inclination, and having an array of half treads on each side of the stringer, each array being vertically spaced from the other along the length of the stringer. The half treads are affixed to and extend from the respective sides of the stringer and each include an integral outwardly extending portion which terminates in a plane forward of a plane passing through the front edges of the treads. Handrails are disposed in this forward plane and are affixed to and supported by the outwardly extending tread portions.
Abstract:
Vertical stairs include a bearing structure 2, which is arranged between a first station “A” and at least one second station “B”, and at least one board 3, which can slide by at least one slide 31 along at least one guide 41 in a mechanical system 4, adapted to move the at least one board 3 along the guide 41. The mechanical system 4 allows the at least one board 3 to be moved along a vertical axis “Z” as a function of the distribution of the weight of at least one user “U” on at least one portion of the at least one board 3, and as a function of the direction in which the user “U” wants to move along the vertical axis “Z” between the stations.
Abstract:
Disclosed in the present invention is a step assembly that facilitates stair climbing. This can aid a person with leg or back pain, decreased range of motion or limited physical strength, due to handicap, injury or infirmity. This free standing, user customizable height step with flat expanding deck surface. The disclosed present invention is a significant improvement over previous attempts to assist individuals by creating a fully adjustable and flat tread surface for the user. The present invention step also provides user customizable heights, by adding adjustment layers, so that the present invention can be used in a variety of step heights.
Abstract:
Disclosed in the present invention is a step assembly that facilitates stair climbing. This can aid a person with leg or back pain, decreased range of motion or limited physical strength, due to handicap, injury or infirmity. This free standing, user customizable height step with flat expanding deck surface. The disclosed present invention is a significant improvement over previous attempts to assist individuals by creating a fully adjustable and flat tread surface for the user. The present invention step also provides user customizable heights, by adding adjustment layers, so that the present invention can be used in a variety of step heights.
Abstract:
A stair having a central stringer and two side stringers adapted for mounting between an upper level and a lower level at a relatively steep angle of inclination. A plurality of tread members are disposed in alternating arrangement on respective sides of the central stringer and each tread member extends laterally from the central stringer to the respective side stringer. The tread members, which are substantially identical in shape, mateably join the central stringer and respective side stringers at tread member ends with a dovetail joint having a recessed mortise defining tread supporting shoulders. Handrails are provided at an angle substantially parallel to the stringers and of a height to support a user while descending the stair. Typically an upper tread member is provided which is even with the upper level. The stair is of a structure which permits disassembled shipment as a relatively compact, lightweight package and ease of assembly at a location of intended use.