US Patent 9546506 Security device for swinging and sliding doors

One embodiment of a simple door security device comprising a generally U-shaped member, and staple assemblies is structured with heavy-duty material and construction. The generally U-shaped member of the embodiment functions to secure doors when installed on the staple assemblies mounted appropriately on doors, or the combination of doors and door-frames. The generally U-shaped member also secures doors when installed on a staple assembly and a door handle, or two door handles. Each staple assembly is secured to doors or door-frames using six fastener means. The installed, generally U-shaped member is secured by a safety hook member, coupled to an attached flexible means on the generally U-shaped member.