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New handheld door opener improves safety

| By Chemical Engineering



This company has introduced a lightweight, handheld and flexible device to open truck-trailer hopper gates and traps safely and efficiently. The patent-pending Door Demon HTO (hopper trailer opener; photo) features a combination of torque, speed and weight specifically designed for hopper trailers, says the company. The Door Demon HTO has enough non-impacting torque to open tough hopper gates, but it is also lightweight and controllable for continued safe use. With the speed level set low enough for complete control, the handheld unit allows operators to know they are approaching the end of the gate, thereby preventing any damage. The shaft and socket design prevents detachment while allowing the three interchangeable trailer sockets to be switched out within seconds. The HTO comes standard with three socket assemblies able to open the majority of trailers, with special sockets also available. The unit also has a lever mechanism to manually lock the shaft when needed. — Arnold Co., Trenton, Ill.