A hazard alert device, which can be battery powered or hard wired, is configured to provide a hazard alert when a gate along an edge of an elevated surface is in the open position. Upon detecting the gate is in the open position, the device produces an audible and visual alert. When the gate, disposed within a portion of the barrier, is opened to allow the movement of people and/or materials to or from the elevated surface, the device includes a snooze mode enabling the audible alarm to be silenced for a period of time. If the gate is inadvertently left in the open position, the audible alert serves as a reminder to close the gate. This device may include first and second sensors with dual channels (output signals) and dual cross-checking processors that continually compare outputs from the sensor channels to identify any defect in the sensor or wiring.

The present gate includes a barrier frame and a gate in the barrier frame. The gate is opened by inserting a foot into a foot opening in the gate, which action compresses springs disposed about pivot pins between the gate and the barrier frame and draws an extended latch downwardly and out of a latch receiver that is bottomless, which action unlatches and frees the gate from the barrier frame such that the gate can be swung open. Downward travel of the gate is minimized until a foot pushes a pivoting stop out of the way.

The present double door gate apparatus has a first lowermost frame member with a first inner end and a second lowermost frame member with a second inner end. The first and second inner ends are spaced apart and engaged by a first connector that engages exterior portions of the inner ends and a second connector that engages interior portions of the inner ends. First and second gates have inner ends that confront each other more closely than the inner ends of the lowermost frame members confront each other.

A gate roller assembly includes a bracket that has a vertical portion and a horizontal portion. The vertical portion is positioned against a gate having the horizontal portion extending away from the gate. A plurality of bolts is provided and each of the bolts extends through the vertical portion of the bracket to engage the gate for retaining the bracket on the gate. A plurality of nuts is provided and each of the nuts threadably engages a respective one of the bolts for retaining the first plate on the gate. A roller is rotatably disposed on the horizontal portion of the bracket to roll along the support surface when the gate is opened or closed.

A barrier assembly is disclosed having a middle door portion that pivots about a vertical axis on one side of the frame. A linear extending actuator provides widening ability to the barrier assembly, and allows a more secure grip on opposing walls.

A fence system with a gate assembly mounted in a gap between first and second fence portions of the fence system. A hinge may be used to mount the gate assembly, where the hinge has a clamp fixed to a support with substantially the same cross-section, and the support is fixed to a first member of the hinge. A second member of the hinge can be mounted to the gate assembly with the first and second members being rotatably fixed together, thereby allowing rotation of the gate assembly between open, closed, and various other positions. A latch actuator can selectively secure and release a latch retainer thereby selectively allowing the gate to rotate to the various positions. A handle can be positioned proximate the latch actuator to allow gripping of the handle and manipulating the actuator with one hand, thereby releasing the retainer.

A unique anti-warping anti-sagging interlocking gate comprises: multiple triple-U-shaped-clamp bracket systems having front and rear plates and bracket tube nuts, multiple anti-warping anti-sagging interlocking-tube-nut hinge systems having crisscross 90-degree hinge tube nuts, multiple struts, a truss having cable ends and a cable clamp, and a truss-cable-clamp-hiding tunnel system. The front and rear plates and bracket tube nuts are for uniquely securing the triple-U-shaped-clamp bracket systems to the struts to prevent the interlocking gate from warping and sagging. The crisscross 90-degree hinge tube nuts are for uniquely interlocking the hinge systems to a fence post in two 90-degree interlocking directions and in five different crisscross interlocking elevations. The truss-cable-clamp-hiding tunnel system is for uniquely hiding the cable ends and a cable clamp inside one of the struts and under one of the triple-U-shaped-clamp bracket systems.

A fence system with a gate assembly mounted in a gap between first and second fence portions of the fence system. The gate assembly can be mounted directly to a post of the first or second fence portions without being mounted to pickets or backer rails of the fence portions. A hinge may be used to mount the gate assembly, where the hinge has a clamp fixed to a support with substantially the same cross-section, and the support is fixed to a first member of the hinge. A second member of the hinge can be mounted to the gate assembly with the first and second members being rotatably fixed together, thereby allowing rotation of the gate assembly between open, closed, and various other positions.

A barrier employed to keep children and/or pets in or out of certain areas in the house. The barrier includes four panels. Two main panels slide parallel to each other to lengthen or shorten the barrier as a whole. Two side panels stabilize the main panels and extend to the front and rear faces of the main panels to provide a self-supporting in-house barrier. Each of the panels includes a wooden frame. The wood lends less weight, less sharp edges, and more pleasing aesthetics than, for example, a metal gate. Legs are connected to the side panels to further stabilize the side panels and main panels.

A gate comprises a spring-loaded hinge arrangement defining a rotational axis. A gate structure having a first support arm connected to a first end of the hinge arrangement is also provided. The gate structure is rotatable about the rotational axis. A spring-loaded hinge arrangement includes an outer hinge tube fixedly connectable to an adjacent structure and an inner hinge tube received in the outer hinge tube. The inner hinge tube has a first portion and a second portion movable with respect to each other, the second portion of the inner hinge tube being fixed with respect to the outer hinge tube and the first portion of the inner hinge tube being fixed with respect to the support arm.