The invention herein relates to a device and system for creating a consistent three-dimensional visual aid for traversing poorly lit or dark spaces by utilizing a device that creates multi-dimensional marking with an intuitive and consistent communicative pattern of marking design. The device further containing either self-illuminating material, light reflective material, or a combination of both.

A returned stair tread assembly comprises a tread plate, a front nosing and a return nosing fitted flush against each other to form an exposed joint between the front and return nosings, and a device for securing the return nosing to the front nosing and the stair tread plate. The tread plate has a side tongue. The front nosing has a front nosing tongue spaced from a forward end of a side edge surface of the front nosing. The return nosing receiving the front nosing tongue of the front nosing and the side tongue of the stair tread plate therein. A front end of the side groove is spaced from a forward end of the return nosing. The front nosing tongue and the side tongue are disposed in the side groove and configured to slidably connect the stair tread plate and the return nosing.

In a method for recycling energy from stairs, a step platform is moveable between an upper and lower position. An energy storage device, coupled to the platform, stores energy when a downward force is applied thereto, causing the step platform to move to the lower position. The energy storage device (also releases stored energy as the step platform moves from to the upper position. A controllable locking mechanism (locks the step platform in the lower position when the downward force has caused the step platform to move into the lower position. A sensor determines when a downward force has been applied to the next higher step platform. A controller signals the controllable locking mechanism to unlock the step platform when the step platform is in the lower position, and when the downward force has been applied to the next higher step platform.

A returned stair tread assembly comprises a tread plate, a front nosing and a return nosing fitted flush against each other to form an exposed joint between the front and return nosings, and a device for securing the return nosing to the front nosing and the stair tread plate. The tread plate has a side tongue. The front nosing has a front nosing tongue spaced from a forward end of a side edge surface of the front nosing. The return nosing receiving the front nosing tongue of the front nosing and the side tongue of the stair tread plate therein. A front end of the side groove is spaced from a forward end of the return nosing. The front nosing tongue and the side tongue are disposed in the side groove and configured to slidably connect the stair tread plate and the return nosing.

A stair nosing comprising an elongate profile member having a back facing configured to abut a bull-nose of a stair tread, a front facing generally opposed to the back facing and a fixing arrangement for facilitating fixing to the bull-nose, wherein, which front facing comprises a longitudinal contact surface configured for contacting a stair tread user's foot and a longitudinal recess adjacent the longitudinal contact surface for receiving a flexible insert, the recess defining a recessed surface of the front facing and wherein the stair nosing is configured to engage with a multi-layer flooring element, which element is disposed on or for disposal on the stair tread, enables easy and effective re-fitting of stairs having a bull nose with multi-layer floor elements, such as LVT, LVP and WPC panels, without unduly compromising aesthetics or durability of the floor elements and without need to reconfigure the bull nose.

A returned stair tread assembly comprises a tread plate, a front nosing and a return nosing fitted flush against each other to form an exposed joint between the front and return nosings, and a device for securing the return nosing to the front nosing and the stair tread plate. The tread plate has a side tongue. The front nosing has a front nosing tongue spaced from a forward end of a side edge surface of the front nosing. The return nosing receiving the front nosing tongue of the front nosing and the side tongue of the stair tread plate therein. A front end of the side groove is spaced from a forward end of the return nosing. The front nosing tongue and the side tongue are disposed in the side groove and configured to slidably connect the stair tread plate and the return nosing.

In a method for recycling energy from stairs, a step platform is moveable between an upper and lower position. An energy storage device, coupled to the platform, stores energy when a downward force is applied thereto, causing the step platform to move to the lower position. The energy storage device (also releases stored energy as the step platform moves from to the upper position. A controllable locking mechanism (locks the step platform in the lower position when the downward force has caused the step platform to move into the lower position. A sensor determines when a downward force has been applied to the next higher step platform. A controller signals the controllable locking mechanism to unlock the step platform when the step platform is in the lower position, and when the downward force has been applied to the next higher step platform.

A device for displaying images for stands or stairways in a public venue includes a controller and a set of electronic screens connected to one another. Mounting devices secure the electronic screens to the risers of an existing stairway or stand. The controller controls displaying an advertising motif distributed between all the electronic screens.

In a mechanism for recycling energy from stairs (200), a step platform (210) is moveable between an upper and lower position. An energy storage device (220), coupled to the platform (210), stores energy when a downward force is applied thereto, causing the step platform (210) to move to the lower position. The energy storage device (220) also releases stored energy as the step platform (210) moves from to the upper position. A controllable locking mechanism (240) locks the step platform (210) in the lower position when the downward force has caused the step platform (210) to move into the lower position. A sensor (250) determines when a downward force has been applied to the next higher step platform (250). A controller (300) signals the controllable locking mechanism (242) to unlock the step platform (250) when the step platform (250) is in the lower position and when the downward force has been applied to the next higher step platform (250).

A stair nosing comprising an elongate profile member having a back facing configured to abut a bull-nose of a stair tread, a front facing generally opposed to the back facing and a fixing arrangement for facilitating fixing to the bull-nose, wherein, which front facing comprises a longitudinal contact surface configured for contacting a stair tread user's foot and a longitudinal recess adjacent the longitudinal contact surface for receiving a flexible insert, the recess defining a recessed surface of the front facing and wherein the stair nosing is configured to engage with a multi-layer flooring element, which element is disposed on or for disposal on the stair tread, enables easy and effective re-fitting of stairs having a bull nose with multi-layer floor elements, such as LVT, LVP and WPC panels, without unduly compromising aesthetics or durability of the floor elements and without need to reconfigure the bull nose.