| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 052182000 | STEPPED; E.G., STAIR | 65 |
| 20100132277 | Modular staircase system - A modular staircase system configured to form a curved staircase, support extremely heavy finishing materials, having higher design tolerances, and can be achieved at a relatively moderate cost. A plurality of stair modules are configured to secure to one another to form a complete staircase system, each which has an elaborate stringer of significant strength and moderate weight configurable to create floating staircases at an affordable cost. | 06-03-2010 |
| 20130074429 | L-PROFILE SHAPED ELEMENT, THE USE OF SAME AND A METHOD FOR INSTALLING SAME - An L-profile shaped element is formed as a monolithic piece, and the L-profile shaped element includes a first and a second leg, wherein the legs are arranged to have substantially the same thicknesses, at least one edge of each leg is provided with joint parts functioning in the substantially same manner, and the element is turnable to a desired position. In addition, the invention relates to the use of the L-profile shaped element and to a method for installing L-profile shaped elements. | 03-28-2013 |
| 20110271612 | STAIRWAY TREAD AND RISER ASSEMBLY - A stairway assembly includes a tread and riser panel attached together by a uniquely designed gusset to form a tread and riser assembly that can be integrally installed on the stringers. In one embodiment, a first portion of the gusset includes a first attachment structure connected to the lower surface of the tread, and a second portion of the gusset has a second attachment structure connected to the lower surface of the riser. The first portion of the gusset extends at an angle from the second portion, with the side edge of the riser overlapping and facing the upper surface of the tread, and said tread side edge faces said gusset. The gusset may include an elongated slot that forms a line of weakening in the gusset. The gusset may be bent about the line of weakening to move the tread and riser into the final position in which the tread is perpendicular to the riser. | 11-10-2011 |
| 20090188182 | PANELS FOR USE IN STAIRCASES, GATES, FENCES AND BALCONIES AND THE METHOD OF MAKING PANELS THEREFORE - A method of making a barrier portion of ornamental staircases, balconies and fences is disclosed including the use of a cutting device to create a design panel from a sheet of material. The panels are cut from materials including steel, bronze, aluminum and other metals, alloys, plastics and wood by using cutting devices such as high energy lasers, water jets and routers guided by computer. The panels are cut to emulate wrought iron panels used in prior art staircase and balcony decorative elements without the problems of requiring a skilled installer to forge the elements and weld them together and then install the elements. The panels are pre-finished in factory and are easily assembled; useable in staircases having open and closed stringers such that they can be installed by the homeowner, meet required codes and have long lasting rust free characteristics at a low cost. | 07-30-2009 |
| 20080244997 | Stairway stringer and finished stairway skirt board - A stairway with a finished skirt/fascia board is formed using parallel stringers and tread/riser support brackets spaced and aligned along the stringers. The brackets are temporarily and pivotally attached to stringers and the stringers are moved parallel to and relative to each other to orient the stringers for the slope of the stairway. The pivotal attachment of the brackets to one of the stringers and the unattached stringer is moved into contact with the other stringer at mating faces. The brackets are them permanently attached to the parallel stringers. The mating faces of the stringers form a finished skirt/fascia board for the stairway. Several variations in contoured faces, including tongue and groove contours, for the mating surfaces provide for a smooth and clean looking skirt/fascia board on a finished stairway. | 10-09-2008 |
| 20080196330 | Public Access Stair System - A public access stair assembly for use with a scaffold assembly and methods for assembling or installing such an assembly are disclosed. Advantageously, the stair assembly is connected in-line with the scaffold assembly to create an integrated public access stair system. The system and methods disclosed herein provide numerous benefits including, by way of example and not limitation, quick installation and dismantling. | 08-21-2008 |
| 20090139161 | Log staircase and a method of producing components for a log staircase - A log staircase is disclosed along with a method of producing components for the log staircase. The log staircase includes an elongated stringer capable of angularly extending from a lower level to an upper level. The stringer has an outer circumference with a notch formed therein. A protuberance extends upward from the notch. The log staircase also includes a tread having a semicircular periphery with a flat surface. An opening is formed in the semicircular periphery of the tread. The opening is designed to mate with the protuberance to retain the flat surface crossways to the stringer. The method includes cutting a number notches and protuberances in each of a pair of stringers, and cutting a pair of openings in a predetermined number of treads which are capable of mating with the protuberances to retain each of the treads crossways to the pair of stringers. | 06-04-2009 |
| 20110067328 | ARCHITECTURAL PAVEMENTS IN ELEVATED EXTERIOR DECK APPLICATIONS - A deck assembly uses plurality of joists preferably formed from metal located side by side and each having a web portion and a deck portion integrally formed with the web portion. The deck portion extends laterally from the web portion and the joists are spaced from one another such that the deck portions from a continuous deck surface with the joists being connected to one another. | 03-24-2011 |
| 20080229685 | Staircase protective step cover and or replacement step - A protective step cover that is both functional, decorative, and the versatility of protecting and or replacing the steps, rectangular in configuration, the top having a horizontal surface with grooves formed into the plastic for traction, the front and rear having a flat vertical surface, the bottom having a flat horizontal surface on each side of the parallel radius drip edges for eliminating moisture, with an open center section for detachably attached to said steps; and brackets, rectangular in configuration, the top having a flat horizontal supporting surface, the front and rear having a flat vertical surface, the bottom having a flat horizontal surface on each side of an open center section for allowing access, the sides having holes for attaching bolts through bracket to the supporting structure, for providing brackets for the protective step cover detachably attached to said brackets to replace the steps in their entirety. | 09-25-2008 |
| 20120266550 | Architectural Pavements in Elevated Exterior Deck Applications - A deck assembly uses plurality of joists preferably formed from metal located side by side and each having a web portion and a deck portion integrally formed with the web portion. The deck portion extends laterally from the web portion and the joists are spaced from one another such that the deck portions from a continuous deck surface with the joists being connected to one another. | 10-25-2012 |
| 20100218442 | DEEP-DRAWING DEVICE - The invention relates to a deep-drawing method and a corresponding deep-drawing device. The deep-drawing device has at least two projections ( | 09-02-2010 |
| 20090031648 | DEMOUNTABLE SEATING AND METHOD FOR ERECTING A DEMOUNTABLE SEATING - Removable stand and method for constructing a removable stand. The method comprises constructing a support structure of posts and trusses that are positionable between the posts, and positioning a floor element on the support structure. Herein the floor element comprises a plurality of floor levels positioned behind each other and positioned at a distance in height and/or is the floor element, before it is positioned on the support structure, provided with at least one seat and/or bench and/or is floor element provided with connection means for connecting at least one seat and/or bench thereto. | 02-05-2009 |
| 20100242383 | MODULAR ELEMENT FOR MAKING FIXED LADDERS - A modular element ( | 09-30-2010 |
| 20100319278 | Prefabricated staircase and finishing arrangement and installation method therefor - A staircase of skeletal form is prefabricated and is provided with prefabricated decorative cladding finishing plates for the treads, the risers and the stringer boards, the plates being pre-drilled for ease of assembly, a plurality of finishing plates can be preassembled, or factory assembled, together before installation over a portion of the prefabricated staircase, and the installation method thereof. | 12-23-2010 |
| 20100281796 | STRUCTURAL MEMBER AND A STEPPED STRUCTURE - A structural member ( | 11-11-2010 |
| 20120011786 | STRUCTURAL STRINGER FOR STAIRWAYS - A stringer assembly for mounting to steps of a stairway, comprises first and second stringer members. The first stringer member are adapted to be secured to the steps with first fasteners that are driven through the first stringer member and then into the steps. The second stringer member is adapted to be positioned with respect to the first stringer member such as to conceal the first fastener and to be mounted thereto via second fasteners and glue, wherein the second fasteners are adapted to be driven through the first stringer member and then into the second stringer member. Decorative covers are provided for mounting onto exposed edges of the first and second stringer members. A method for assembling a stringer to steps of a stairway and a kit for producing a stringer assembly for use in stairways are also disclosed. | 01-19-2012 |
| 20120167494 | MODULAR STAIRCASE SYSTEMS - Modular staircases and staircase assemblies comprising components with notches that fit into and interweave with each other. Certain embodiments of modular staircases have at least two webs, wherein the perimeter of each web resembles a staircase with steps. The webs may be coupled together by a plurality of cross-beams. Each of the webs and the cross-beams may have notches that fit into and interweave with each other to form the basic structure of a staircase. The staircase may also be provided with cover pieces to cover the exposed webs and cross beams, and thus, to provide a surface for a user to sit or step on. Embodiments described herein are modular, in that they may be coupled together in various configurations and thus coupled to straight walls, curved walls, or any combination thereof. Additionally, embodiments described herein may be installed in either vinyl liner-type pools or concrete pools. | 07-05-2012 |
| 20100024327 | METHOD OF MANUFACTURING A STEPPED RISER, AN ELEMENT FOR FORMING INTO A STEPPED RISER AND A STEPPED RISER AND A MEMBER FOR CHANGING THE MECHANICAL DYNAMIC PERFORMANCE OF A STEPPED RISER - A method of manufacturing a stepped riser comprising providing a first sheet of metal with a layer of plastics or polymer material bonded to the metal with at least one indentation formed in the layer of plastics or polymer material thereby to allow bending of the sheet of metal along pre-determined lines substantially without inducing compression or tension through the thickness of the layer of plastics or polymer material. | 02-04-2010 |
| 20100229478 | ADJUSTABLE STAIR RISER AND METHOD OF INSTALLING SAME - An adjustable stair riser includes a body portion made of a flexible material. An upper connecting portion is disposed adjacent to an upper end of the body portion. A lower connecting portion is disposed adjacent to a lower end of the body portion. A front surface of the body portion is concavely shaped between the upper and lower ends so as to create slack for moving the upper and lower ends toward or away from each other to accommodate spacing between adjacent treads of a stairway during installation. The concavely shaped front surface of the body portion additionally provides an obstruction free path of foot travel. | 09-16-2010 |
| 052183000 | Interconnected relatively movable components | 11 |
| 20090188183 | Stair system with adjustable width - A stairway assembly having an external step portion, an internal step portion slidably engaged with the external step portion; a first stringer secured to the external step portion to support the external step portion; and a second stringer secured to the internal step portion to support the internal step portion. | 07-30-2009 |
| 20090249713 | Portable riser apparatus having a lifting and locking assembly - There is provided a portable riser having an operator actuated lifting assist assembly operatively coupled to a riser deck. In one aspect, there is a first pivot mechanism coupled to a first support leg and adapted to initiate upward movement of the portable riser from a collapsed position when a downward force is applied to the first support leg, and a second pivot mechanism coupled to a second support leg and adapted to continue the upward movement. The lifting assist assembly provides a lifting force that continues upward movement to an upright position where the portable riser in locked. There is included a riser unlocking means for unlocking the lifting assist assembly. The portable riser remains in the upright position until the riser unlocking means is operated and a collapsing force is applied to the portable riser sufficient to overcome the lifting force and enable collapsed of the portable riser. | 10-08-2009 |
| 20100154328 | Adjustable Baluster - The present invention includes a baluster assembly system comprising: (a) a first baluster portion comprising a first tubular section and having a first attachment adapted to be attached to a surface, and a first engagement end; (b) a second baluster portion comprising a second tubular section and having a second attachment adapted to be attached to a surface, and a second engagement end; the first tubular section adapted to slidingly engage the second tubular section, and (c) a locking fixture adapted to fix the position of the first baluster portion with respect to the second baluster portion after the first tubular section and the second tubular section have been engaged. | 06-24-2010 |
| 20100192487 | Pivotal stairway systems and method - 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. | 08-05-2010 |
| 20100180525 | Removable stairway - 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. | 07-22-2010 |
| 20110239556 | COLLAPSIBLE STAIRCASE - Embodiments of the invention described herein pertain to a collapsible staircase comprising a plurality of tread assemblies. Each tread assembly is disposed adjacent to at least one of another of the tread assemblies and includes a tread plate and a first and a second telescoping support member attached to a rear surface of the tread plate. The first and second telescoping support members of each tread assembly are operable to slideably engage the telescoping support members of the adjacent tread assemblies for adjusting a height of the staircase and for defining a substantially fixed angle between the tread plates of each of the tread assemblies. | 10-06-2011 |
| 20100293875 | Stairway for Use on Building Sites - The invention is a portable, modular stairway unit for use on a building site during construction of a multistorey building, the stairway unit including: a stair run section with a plurality of rise-separated stair treads, the stair run section having an upper and a lower end; an upper landing connected to the stair run section at, or at a distance from, the upper end of the stair run section; a lower landing connected to the stair run section at, or at a distance from, the lower end of the stair run section; wherein each of the landings have portions that extend laterally beyond a width of the stair run section, the landings being devised to extend inwardly into respective upper and lower storey levels of the building when the stairway unit is situated adjacent to a face of the building; and anchoring means arranged to removeably secure the landings, in use, at the upper and lower storey levels thereby to provide a double-cantilevered mounting of the stair run section extending between the two building storey levels. | 11-25-2010 |
| 20110162303 | Adjustable Stair Stringer and Railing - An adjustable stair stringer and railing construction assembly. The assembly is adapted to use a pair of parallel stringer arms for each stair side, a riser/tread support bracket for each stair, and alignment and spacing elements for spacing the support brackets along the stringers. The brackets include formations for spacing the stringers apart and for spacing adjacent brackets along the stringers. The brackets are initially pivotally attached to each of the stringers so as to be rotatably movable about their pivotal attachment as the stringers are moved axially. Axial movement of the stringers with respect to each other establishes the angle of rise. Treads and risers are attached to the brackets to form stairs, and railings are attachable to the stringer and bracket assembly. The parallel stringers, brackets and spacers are also used in the preparation of formwork for pouring aggregate stairs, with the stringers, brackets and spacers being reusable. | 07-07-2011 |
| 20090288351 | FOLDING LOFT STAIR ASSEMBLY - A folding loft stair assembly ( | 11-26-2009 |
| 20120005972 | FOLDING LOFT STAIR ASSEMBLY - A folding loft stair assembly has an outer mounting frame for mounting in a ceiling ope giving access to an attic space in a building. An inner stairway support frame is pivotally mounted on the outer frame for movement between a nested position within the outer frame and a downwardly extending in-use position. A two-art collapsible stairway is movable on the inner frame by a remotely controlled actuator between a raised collapsed stored position and lowered in-use position. The stairway includes an upper part and a lower part hingedly connected to the upper part. An upper end of the upper part is hingedly mounted on the inner frame. The lower part is slidably connected to the inner frame by a pair of slide arms. An inner end of each slide arm is pivotally connected to the inner frame and an outer end of the slide arm slidably engages a slide rail on the lower part. | 01-12-2012 |
| 20110088341 | STAIRS ADAPTABLE FOR USE BY DISABLED PERSONS - Especially designed to allow the wheelchairs in which disabled persons move to pass from a lower level to a higher level and vice-versa, although it is also valid for mothers, with trolleys whether of babies, shopping, etc. or for any other similar application; the stairs have steps which can move upward and/or downward to be positioned coplanarly and establish a platform, whereto the disabled person's wheelchair can directly access, allowing this by horizontal raising and/or lowering of this platform to pass from one floor level to another. For this purpose, it is provided that each step is supported by a scissor structure, associated to a mechanism, preferably formed by a motor and a spindle, making it possible to simultaneously raise and/or lower, and in controlled fashion, all the steps to form the platform of direct access of the disabled person's chair. | 04-21-2011 |
| 052184000 | With additional building feature | 15 |
| 20130081340 | METHOD AND APPARATUS FOR DECORATING STAIRCASES - Methods and apparatuses for changing the appearance of a staircase by draping, dressing, or covering the staircase or parts thereof with fabric are provided. A fabric is attached to a staircase to conceal a plurality of balusters of the staircase when viewed from at least a first direction. The fabric extends at least the entire length of the balusters. In some embodiments, the fabric conceals at least a part of a handrail of the staircase when viewed from the first direction. | 04-04-2013 |
| 20090308003 | SWIMMING POOL STAIRS - There is described a stair system insertable into a pool having a top edge surface and bottom surface, comprising a stair portion defining steps and risers each having a fixed height, the stair portion having a support portion projecting from an uppermost one of the risers and adapted to be seated against the top edge surface of the pool, and a ballasted booster positioned below the stair portion at any one of given locations in the bottom of the stair portion and lying against the bottom surface of the pool. The stair system has a height adjustable by the position of the booster with respect to the bottom of the stair portion as a function of the height between the top edge surface and the bottom of the pool. | 12-17-2009 |
| 20090064607 | Adjustable stair rail - The present invention relates to an angle adjustable stair rail assembly comprising a top and bottom rail and a plurality of parallel balusters joined to the top rail and the bottom rail by deforming a cut-out opening in the baluster around a punched web openings in a wall of the top and bottom rails so that the rails and balusters can be moved to any angular disposition keeping the balusters parallel to each other and the top rail and bottom rail parallel to each other. The cut-out opening in the baluster can form a pair of legs. The retention of the baluster is accomplished by a simple clamping action after the legs of the baluster are received in the openings in the wall of the top or bottom rail. | 03-12-2009 |
| 20110289868 | Roll-Away Staircase - This invention relates generally to a staircase that can roll to an upright position when not in use and considers safety standards. More particularly, the invention is directed to a staircase that can be used where space is limited as the staircase's footprint can be minimized when not in use. | 12-01-2011 |
| 20110277403 | HANDRAIL CONSTRUCTION - A handrail construction, such as for a bridge or stairway, includes a tubular handrail element, the cross section of which is defined by a closed tube wall which encloses an internal cavity, and also a series of supports fastened to the handrail element. At least one counterpiece is located in the interior of the handrail element. Each support is fastened to a counterpiece via a fastening element which protrudes through the tube wall of the handrail element. The handrail element includes a thermosetting material. | 11-17-2011 |
| 20080276553 | Affordable, sustainable buildings comprised of recyclable materials and methods thereof - An affordable, sustainable building, comprising substantially entirely mass-produced, prefabricated constituent parts manufactured off-site, the prefabricated constituent parts comprising a foundation, a frame module comprising a plurality of frames, wherein the frame module is secured to the foundation, a reversible connector to connect the plurality of frames to form the frame module, a wall panel configured to be mounted onto the frame module, a floor panel configured to be mounted onto the frame module, and a ceiling panel configured to be mounted on to the frame module. Each constituent part forms part of a library of parts from which the constituent parts are selected. The constituent parts are preferably made in standardized sizes to facilitate efficient mass production. The constituent parts are predominantly made of recyclable material so as to be environmentally friendly. Computer software may be developed to facilitate design and construction of the affordable, sustainable building and to calculate proper attachment points for lifting and moving frame modules. | 11-13-2008 |
| 20100132278 | METHOD AND SYSTEM FOR COUPLING A STAIR PLATFORM TO A TOWER OF A WIND ENERGY TURBINE - A method and system for coupling a stair platform to a tower of a wind energy turbine that includes a stair platform comprising at least one side member and a doorway formed in a portion of the tower. The doorway further includes a casing that defines an outer perimeter of the doorway. At least one connection member extends outward from the casing. At least one attachment slot is defined in at least one side member of the stair platform. The attachment slot is configured to receive a portion of the at least one connection member therein to couple the stair platform to the doorway. | 06-03-2010 |
| 20110173904 | Support apparatus and method for assisted traversal of a structure - Embodiments of the invention relate to an apparatus for assisted walking on stairs or other sloped surfaces. The apparatus may also be used for assisted walking on slippery surfaces. The apparatus comprises a fixed support and a moveable support. The fixed support is fixed relative to the stairs or other walking surface, while the movable support is selectively moveable relative to the stairs and fixed support in a direction substantially parallel to an incline of the stairs. The movable support is selectively positionable relative to the fixed support in one of a plurality of closely spaced discrete locking positions in which the movable support can support a personal relative to the stairs. | 07-21-2011 |
| 20120005973 | HANDRAIL FOR STAIRCASE OR RAMP - An improved handrail for a staircase or ramp. In one embodiment, the handrail includes an elongated member such as a cylinder or bar that spans the length of the staircase or ramp and a riser barrier. The riser barrier has an extender portion and a riser portion. The extender portion of the riser barrier keeps the elongated member a sufficient distance horizontally from the riser portion that a person can slide his or her hand on the rail without interference. The riser portion projects vertically a sufficient distance above the elongated member to deter sliding down the elongated member. Thus, sliding on the member is deterred, while the function of the cylinder as a handrail is preserved. | 01-12-2012 |
| 20120102855 | COMPOSITE STEP TREAD - A step for ingress and egress from a swimming pool and/or a spa includes a tread including opposing side edges, a riser coupled with and extending substantially perpendicular from one of the side edges of the tread and an upper flange substantially perpendicular to said tread and coupled with and extending upwardly or downwardly from one of the opposing side edges of the tread opposite the riser. The upper flange is configured to be coupled with the riser of another step or a wall of the swimming pool or spa to form a stairway. | 05-03-2012 |
| 20100287854 | MODULAR STAIRWAY SYSTEM AND KIT THEREFOR - A stairway system, kit and method for assembling the kit are provided, the system including pre-fabricated components such as steps, stringers, decorative mouldings and panels or boards, etc., on site. The kit comprises a step module and an adjacent step module, the step module comprising a riser and a tread, the riser being adapted to abut the tread on a first side thereof and being adapted to define a fastener-mating portion on a second side thereof. The tread is adapted to be secured atop the riser on one side thereof. The adjacent step module comprises a riser and a tread, the adjacent step module being adapted to be assembled with the step module by engaging a fastener with the fastener-mating portion of the step module and securing the fastener to the tread of the adjacent step module to secure the two step modules together. | 11-18-2010 |
| 052185000 | Multilevel building | 3 |
| 20080236065 | Modular concrete stair truss system - A system for establishing modular concrete truss stairway during construction of a multi-floor building having concrete decks provides two pre-cast concrete stringers of plural stairsteps and a cast-in-place intermediate landing therebetween forming a stair truss structurally attached to and communicating between two vertically spaced adjacent concrete decks. The intermediate concrete landing is carried between the adjacent vertically spaced decks by adjacent end portions of the stringers. Internal reinforcement in the concrete decks, in each stringer and in the intermediate landing is operatively interconnected to provide structural rigidity to the stair truss. Concurrent pouring of concrete for the upper deck, the intermediate landing and a blocked out area defined in a lower deck structurally attaches the stair truss therebetween providing an operative stairway upon hardening of the concrete. | 10-02-2008 |
| 20110271613 | Stair tower module - A modular, prefabricated stair tower comprising a plurality of stairs, landings, handrails and hangers pre-assembled into a module configured such that it might be shipped and installed into a wind power tower tube section, with installation preferably occurring prior to shipment to the wind farm jobsite so that, when the tube section is erected vertically, authorized personnel gain immediate, efficient and economical access for ascending and descending large land based and offshore wind power turbine towers. | 11-10-2011 |
| 20090293384 | Multi-Level Apartment Building - A system of spaces including a residential apartment unit in a multi-unit building arranged on multiple levels that provides the following attributes to all units in the building: Central corridor access to a middle level of each unit; through-unit feature with exposures at opposite sides of the building; a variety of ceiling heights, each appropriate to the function and formality of its respective space, which nest to conserve building height and bulk; and internal balconies and exposed interior stairs enabling vertically displaced spaces to interlock and communicate visually. The resulting unit is contained within a demising envelope whose shape, when rotated 180 degrees about a central public corridor serving a second such unit, forms a complimentary pair. The combined shape of each such pair of units enables it to be stacked vertically and abutted laterally into a simple rectangular solid that allows vertical continuity for optimum efficiency of structural and mechanical support systems. | 12-03-2009 |
| 052186000 | Closure | 1 |
| 20100275536 | System for Insulating Attic Openings - A cover for closing an access opening that leads to an infrequently used space within a building, such as an attic, provides thermal and acoustic insulation at the access opening. The cover may be in one or two portions, including a closure alone or a closure and a frame having an aperture that can be closed by engagement between the closure and the frame. When the cover is used alone it engages a frame or a wall circumscribing the access opening. The cover is sized and shaped to close a stairwell, or the opening at one end of a stairway, or an opening in a generally vertical wall that is not necessarily associated with a stairway. The closure and frame are each made of one or more components. | 11-04-2010 |
| 052187000 | Helical type | 5 |
| 20110192099 | MODULAR SPIRAL STAIRCASE ASSEMBLY - A modular spiral staircase assembly that involves a handrail formed of one or more sections and a series of slide members each configured to form a link between both a baluster and the handrail of the staircase. The use of such slide members enables initial ease with respect to positioning of the balusters along the extent of the handrail and subsequent secure locking of such balusters in position with respect to the handrail for alignment purposes with corresponding treads of the staircase. Additionally, using such slide members along the extent of the handrail provides the installer ready-made tools for progressively shaping the extent of the handrail so as to align it with the curvature of the staircase. | 08-11-2011 |
| 20100107523 | BENT POLE COMPOSITE STAIRS - A staircase including a bent pole stringer with first and second straight stair sections separated by a spiral stair section. There is preferably a first bend defined on the stringer between the first straight stair section and the spiral stair section, and a second bend defined on the stringer between the spiral stair section and the second straight stair section. There are also a plurality of first straight stair treads cantilevered from the first straight stair section of the stringer, a plurality of spiral stair treads cantilevered from the spiral stair section of the stringer, and a plurality of second straight stair treads cantilevered from the second straight stair section of the stringer. | 05-06-2010 |
| 20110258946 | SPIRAL STAIRCASE - A spiral staircase comprises a central supporting element and a plurality of steps which are connected to the supporting element at a first end, there being two types of steps positioned in an alternating fashion, of which a first type of step is substantially “L”-shaped and a second type of step is substantially arrow-shaped. | 10-27-2011 |
| 20080236066 | Segmented spiral staircase and kit for its construction - A segmented spiral staircase and kit for its construction has a plurality of laterally extending step segments. Each step segment has a step surface with an inboard, donut-shaped end section and lower downwardly extending support members. Each step segment also has an upstanding baluster rail member connected by screws to the outboard end of the step surface. The step segments are each rotatably mounted, at their respective inboard end sections, in offset fashion through a vertically standing support post. The baluster rail members of the step segments are configured to be aligned adjacent to each other and are connected one to the other by screws. Spacer sleeves separate each of the step segments, whose lower support members are positioned against the vertical surfaces of the sleeves. Alternate stacking of the sleeves and step segments and connection of the baluster rail members produces a sturdy staircase structure which also includes an upper landing member. The relatively lightweight nature of the components of the kit make assembly easy and, by simply removing the screw connections between baluster rail members, a step segment or entire section of the staircase made up of several step segments can be rotated around the vertical support post to alter the configuration of the staircase. | 10-02-2008 |
| 20120304560 | KIT FOR PRODUCING A STAIR CASE - A kit for assembling to produce a staircase, the kit comprising: a pair of star supports ( | 12-06-2012 |
| 052188000 | Tread unit on horizontal tread member connected to riser | 8 |
| 20090094907 | STEP FOR MODULAR STAIRCASES AND RELATIVE STAIRCASE - A step for modular staircases, preferably produced by moulding using a thermoplastic technopolymer, comprises at least a main body ( | 04-16-2009 |
| 20090056245 | MODULAR STAIRCASE SYSTEM AND KIT FOR ERECTING A STAIRCASE - The present invention relates to a novel method and modular assembly for producing a staircase. The modular staircase allows one with little to no skill to quickly and easily order and install a modular staircase at reasonable cost with no specialized technical skill necessary. | 03-05-2009 |
| 20110214369 | Decking System - A decking system comprises a ledger board for mounting on an upright supporting surface, a beam, a plurality of joists for spanning between the ledger board and the beam, and a plurality of deck boards for spanning across the joists in which all of the components can be mounted to one another by interlocking engagement of various connectors so that no additional fasteners are required for assembly. The components are formed of extruded and molded materials which do not require any maintenance. A railing system and a stair system are also provided which similarly connect by interlocking engagement of the components. | 09-08-2011 |
| 20120266551 | TREAD MODULE - A tread module ( | 10-25-2012 |
| 20110232214 | Method, Component and Structure for Constructing a Dual-Use Staircase - A method of converting a traditional staircase into a dual-use staircase, for reducing the stepping height and knee stress in stairs climbing and descending, comprises: providing a plurality of lifting modules and a plurality of extending modules; connecting the plurality of lifting and extending modules in pairs to the original steps respectively; and optionally connecting a plurality of dividers in between said lifting and extending modules respectively. | 09-29-2011 |
| 20080216422 | Stair system - A stair system including an upper tread having a substantially planar body portion, a stair nose portion located at one side of the planar body portion, and a dado located behind the stair nose portion, at least one lower tread, the lower tread having a substantially planar body portion, a stair nose portion located at one side of the planar body portion, a dado located behind the stair nose portion, and a groove located at a side opposite the stair nose portion, and at least two risers, each riser having a substantially planar body portion. In the stair system, one of the at least two risers is receivable between the dado of the upper tread and the groove of the lower tread and the other of the at least two risers is receivable in the dado of the lower tread. Methods for assembling a stair system are also provided. | 09-11-2008 |
| 20110225906 | STEPPED STRUCTURE - A stepped structure ( | 09-22-2011 |
| 20110146169 | STAIRWAY - A stairway having an alternating series of risers and treads wherein two risers and a tread form a step structure for use in constructing the stairway. The step structure including a first riser having a front portion and a rear portion, a tread having a support surface and an opposite surface, a second riser having a front portion and a rear portion, and wherein the tread is positioned between the rear portion of the first riser and the front portion of the second riser and wherein the second riser of one step structure becomes the first riser of the next-up step structure. | 06-23-2011 |
| 052189000 | Precast stonelike component | 2 |
| 20080263970 | ASSEMBLY AND METHOD FOR THE CONSTRUCTION OF MONOLITHIC TIERED CONCRETE SLABS - The assembly and method of the present invention is used for forming a monolithic tiered concrete slab or stairway. The assembly includes a plurality of foam blocks positioned adjacent one another and in a plurality of rows on a support base. The upper surfaces of the blocks are sloped and form a continuous included plane from the front row to the back row. Interface elements are attached to the upper surfaces so as to cover the joints between adjacent blocks. Riser ties are mounted on the interface elements, with riser face forms attached to the ties. After the blocks are positioned and the interface elements with riser ties and face forms assembled, concrete is poured under the blocks so as to cover the upper surface, the interface elements, and the ties, thereby forming a monolithic tiered series of risers and treads. | 10-30-2008 |
| 052190000 | Integral tread and riser | 1 |
| 20090249714 | Precast concrete modular stairwell tower - A multi-story building is constructed by first erecting at least one modular stairwell tower on a concrete base pad. The tower includes a number of horizontally alternating precast concrete modular stairwell units arranged in a stack and corresponding to twice the number of floors in the building. Each stairwell unit includes a precast reinforced concrete tower section having opposite side walls and opposite end walls defining an open top and an open bottom and a height generally equal to one half the vertical distance between two adjacent floors. An inclined stairway and a horizontal landing platform are formed within each tower section and are rigidly connected to the walls. Anchor members are embedded in the base pad and in upper and lower portions of the walls of each tower section, and adjacent anchor members are connected by weld plates. Each stairwell unit has a handrail supported by the corresponding stairway. | 10-08-2009 |
| 052191000 | Risers connected to common stringer | 5 |
| 20090308004 | STAIR STRINGER ASSEMBLY BENCH - A stair making apparatus is disclosed. The stair making apparatus comprising a bench adapted to support a plurality of members and a beam; a stop fixture connected to the bench, the stop fixture having a plurality of stops for individually engaging each of the plurality of members; and one or more fasteners connected with the bench, the one or more fasteners configured to cooperate with the plurality of stops to brace the beam and the plurality of members in a form of a stair stringer. | 12-17-2009 |
| 20110167740 | Method and Apparatus for Attaching a Rail Support Post to a Stair - A method and apparatus is disclosed for mounting a rail support post to the perimeter of a stairway having stingers at the edge of the stairway and treads, risers and possibly blocking laterally across the stairway. The apparatus includes a bracket member that is attached to or against the interior of a stringer and includes at least one hole for accommodating a fastener that passes through the stringer and into or through a post member at the outside surface of the stringer. The bracket includes flanges that attach to a rise or a tread and/or a block to secure the assembly together. | 07-14-2011 |
| 20090277105 | Stairway stringer and finished stairway skirt board - A stairway with a finished skirt/fascia board is formed using parallel stringers and tread/riser support brackets spaced and aligned along the stringers. The brackets are temporarily and pivotally attached to stringers and the stringers are moved parallel to and relative to each other to orient the stringers for the slope of the stairway. The pivotal attachment of the brackets to one of the stringers and the unattached stringer is moved into contact with the other stringer at mating faces. The brackets are them permanently attached to the parallel stringers. The mating faces of the stringers form a finished skirt/fascia board for the stairway. Several variations in contoured faces, including tongue and groove contours, for the mating surfaces provide for a smooth and clean looking skirt/fascia board on a finished stairway. | 11-12-2009 |
| 20080229686 | Stringer and Step Support Kit for Stairways - The present staircases are constructed of modular stringers for the on-site Installation of the staircases in a residential, commercial or industrial setting. Kits for erecting the staircases will include matingly or cooperatively coupling step support units defining the staircase stringers, a set of steps adapted to be mounted thereon, as well as various finishing elements and modules to provide a finished look to the completed staircases. The staircases presented herein include self-supporting staircases, linear staircases, curling or spiralling staircases and adjustable variations thereof. Each kit is designed to provide an easy installation of the staircases while providing for the erection of solid finished staircases. | 09-25-2008 |
| 20090293385 | Boltless Metal Stair Step System for Indoor/Outdoor Staircase Installation - The invention is a boltless metal stair step system that provides a simple way to install an indoor/outdoor metal staircase. The result is a structurally sound, lightweight, fire retardant staircase that can ultimately be finished with various materials such as stone, brick, wood, etc. Ordinarily a staircase is constructed using wood, concrete, etc., and in most cases a skilled person is needed to repair or install a new staircase. This invention comes ready to assemble and no staircase building experience is necessary; and because of the unique interlocking or “snap in” connections and the minimal use of parts and screws, it eliminates the need for intricate measuring, cutting and special tools. Also, the specially designed “snap in” connections and the method of installing the steps makes the replacement of staircase parts simple and convenient. | 12-03-2009 |
