Class / Patent application number | Description | Number of patent applications / Date published |
052183000 | Interconnected relatively movable components | 16 |
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 |
20090288351 | FOLDING LOFT STAIR ASSEMBLY - A folding loft stair assembly ( | 11-26-2009 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
20130000231 | WALKWAY ASSEMBLY - A walkway assembly ( | 01-03-2013 |
20140311062 | ARTICLE OF FURNITURE - An article of furniture includes a base, an intermediate member positioned above the base, a top member positioned above the intermediate member, and an adjustability mechanism that is attached to the base, the intermediate member, and the top member such that the intermediate member and the top member are each moveable relative to the base and such that the intermediate member is moveable relative to the top member and the top member is moveable relative to the intermediate member. | 10-23-2014 |
20150047273 | Safe Room System for Folding Attic Stair Assembly - A system and method for establishing a safe room environment within an attic space utilizing a typical folding attic stair and door assembly. The system includes components that retrofit to an existing folding attic stair in a manner that allows the user to draw the attic stair up behind them and to secure the attic door panel closed and locked while the user is within the attic space. The components include a retractable lift cord attached to a middle section of the attic stair, and a lift rod attached to the attic door. Brackets and frames positioned on the attic door and door frame allow the user to pull up to fold and raise the stair into the attic space. A lock may then secure the attic stair closed preventing access from below. Methods for installing the system and using the system are provided. | 02-19-2015 |
20150101272 | INSULATING COVER FOR AN ATTIC SEALING MEMBER - An insulating system comprises a cover and a generally rigid attic sealing member. The cover defines an interior chamber, and the interior chamber is filled with insulation. The cover further forms a cavity in the bottom of the cover, where the attic sealing member is received into the cavity. Together, the system raises the insulating value (R-value) of an area above an attic opening to a minimum R-value level required by many building codes. The cover may be filled with insulation through a slit or passage extending along the top of the cover. | 04-16-2015 |
20160102461 | STAIR EXPANSION JOINT SYSTEM WITH FREEDOM OF MOVEMENT BETWEEN LANDINGS - A stair system with freedom of movement between landings associated therewith includes a connection system configured to connect stairs to a landing associated with a construction, wherein the connection system structurally supports the stairs for safe egress over the stairs while concurrently supporting movement between the landing and a second landing associated with the construction by the stairs in at least one dimension, and wherein the movement supports inter-story drift between the landing and the second landing and removes some force translation between the landing and the second landing. | 04-14-2016 |