US Patent 8973708 Hunter's tree stand

A tree stand includes an upper support ring formed of a pair of separable, semicircular sections, each having a plurality of brackets depending therefrom. Each bracket includes a slot for receiving an adjustable strap, and a tooth on an inner surface for penetrating a tree trunk. The stand further includes a lower platform likewise formed of a pair of separable, semicircular sections that are fastened to a tree trunk, beneath the support ring. A chair includes pulleys that roll on both the upper ring and the platform to allow a hunter to move the chair a desired position.