Helmet rotation damping with negative torque

Abstract

The present invention is a helmet system that reduces concussions by damping rotational force transmitted to a helmet user. The helmet has an helmet shell that moves independently from an internal body worn by the user. At least one magnetic force emitter on the helmet shell's interior directs at least one interior-facing magnetic flux axially at the internal body. At least one magnetic force emitter attached to the internal body directs at least one exterior-facing magnetic flux at the at least one interior-facing magnetic flux. In a resting state magnetic flux interactions are limited. When a tangential impact rotates the exterior shell, the at least one interior-facing magnetic flux approaches to the side of the at least one exterior-facing magnetic flux, inducing negative torque of the internal body in a variety of ways. Rotational momentum is diffused in a variety of ways. The exterior shell is returned to the resting state in a variety of ways. A sensor may be contained on the internal body to detect magnetic flux acceleration of the exterior shell, and may store or transmit data, and may trigger an airbag around the user's neck, or reduce helmet shell motion, or return the helmet shell to the resting state.

Dependencies are inferred from the claim text.