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 stair assistance device for use with a handrail, the device comprising a sleeve engageable with and slideable relative to the handrail, and a brake element to hinder or prevent sliding movement of the sleeve, wherein, when the sleeve is engaged with a handrail, the brake element is resiliently biased towards the handrail, to hinder or prevent movement of the sleeve when the device is not in use.

An extendable rail system for a flight of stairs to exit a heliport comprising a railing positioned along the flight of stairs, where the railing includes a handrail; a plurality of anchors attached to the railing, where the plurality of anchors support the handrail; a rail extension attached to a top portion of the railing, where the rail extension moves between a first position and a second position; a motor coupled to the rail extension, where the motor moves the rail extension between the first position and the second position; a first actuator positioned on the heliport, where the first actuator activates the motor; and a second actuator positioned at a base of the railing, where the second actuator activates the motor.

A stair cage is a stair assistance apparatus having a rail attached to the wall on each side of a staircase, and two horizontal rails spaced horizontally apart but joined by cross bars and having wheels rotatably attached to the ends of the cross bars and engaged in tracks within the horizontal rails so that the cross bars are able to move up and down the stairway. A brake system having a brake assembly in the wheels and squeeze brake handles on the cross bars so that the user can control the descent or hold position on the ascent.

The invention relates to a telescopic staircase to be installed on construction sites for providing a safe staircase for workers during building construction. The telescopic staircase comprising at least one lateral guard comprising a top rail, a bottom rail and at least two newels, the bottom rail having a plurality of connecting holes, and a plurality of tread assembly comprising a tread plate, at least two stringer portions and at least two pairs of support members, each support member having at least one connecting hole, in which the at least one lateral guard includes a first portion being retractable into and extensible from a second portion, in which each support member substantially forms a 45° angle with the tread plate, and in which the support members are to be attached to the top surface of the bottom rail via attachment means through the connecting holes.

A milling device for implementing a milling operation including a milling unit having a body including a milling chamber that can be filled with a material to be milled, a rotor mounted so as to be able to rotate around a shaft in the body, a screen, and a drive unit controlling the movements of the rotor with respect to the screen during the milling operation. The drive unit is designed to impart an oscillating movement to the rotor around the shaft, the oscillation angle being variable during the milling operation. The milling chamber is configured to direct the product to be milled in a direction substantially parallel to the rotation shaft of the rotor.

A stair cage is a stair assistance apparatus having a rail attached to the wall on each side of a staircase, and two horizontal rails spaced horizontally apart but joined by cross bars and having wheels rotatably attached to the ends of the cross bars and engaged in tracks within the horizontal rails so that the cross bars are able to move up and down the stairway. A brake system having a brake assembly in the wheels and squeeze brake handles on the cross bars so that the user can control the descent or hold position on the ascent.

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.

The invention relates to a system for assisted ascent or descent, comprising: —a staircase comprising at least one instrumented mobile step, equipped with at least one sensor for measuring the centre of pressure of a user and at least one lifting actuator designed to raise or lower the step according to a degree of vertical freedom; —a calculation unit connected to the sensor for measuring the centre of pressure and to the lifting actuator, the calculation unit being configured to calculate at least the position, the speed of movement and the acceleration of the user from the centre of pressure measured by the sensor and, depending on the values calculated, control the lifting actuator.

A fall protection system from stairs, that will allow children, elderly, disabled people to use the stairs safely by deploying as an instant safety net to stopping a child or an elderly or frail person from falling from the stairs.