Abstract: A construction safety screen system includes a flexible net member sized to cover an opening of a building, a plurality of straps attached to the flexible net member, and a plurality of oval snap hooks each being securable to the distal end of one of the plurality of straps and to one of a plurality of fasteners attached to the concrete building structure surrounding the opening.

Abstract: A device for use in the installation of lightweight concrete roof systems includes a base element having a substantially flat portion and a wire tie. The wire tie extends from the base element and terminates at opposite ends which may be formed in a ring or loop. In use, the base element is mechanically fastened to the bar joist, through the steel deck, of the roof system. The terminal ends of the wire tie are secured to steel-welded wire reinforcement fabric overlying a layer of lightweight concrete, thereby securing the lightweight concrete to the steel deck of the roof system and preventing separation of the lightweight concrete due to external forces such as wind sheer.

Abstract: A traffic signal apparatus is provided with solar panels, a battery source for powering light directional signals during a power outage and a charger linked to the solar panels for re-energizing the battery source. Changing of the light directional signals (i.e. red, yellow, green, arrow) is controlled by a timer connected to the battery power source. In a preferred embodiment, one or more 12 volt batteries, such as those used in an automobile, are connected in series for powering the light signals. The batteries, solar panel(s), charger, connecting cables and the timer may be installed to an existing conventional traffic light signal or, alternatively, on a temporary traffic light signal supported on a post for placement on the ground, preferably in the middle of the road, such as at an intersection.

Abstract: A device for use in the installation of lightweight concrete roof systems includes a base element having a substantially flat portion and a wire tie. The wire tie extends from the base element and terminates at opposite ends which may be formed in a ring or loop. In use, the base element is mechanically fastened to the bar joist, through the steel deck, of the roof system. The terminal ends of the wire tie are secured to steel-welded wire reinforcement fabric overlying a layer of lightweight concrete, thereby securing the lightweight concrete to the steel deck of the roof system and preventing separation of the lightweight concrete due to external forces such as wind sheer.