Hal D. Mitchell

TL;DR: In this article, a shock attenuation system (S) comprising a plurality of shock attenuating columns (9) of a substantially resilient elastomeric material is described. The columns are so dimensioned and configured that, when subjected to an axial impact force of predetermined magnitude, they resiliently deform for attenuating the shock resulting from the impact force.

TL;DR: A shoulder pad truss arch system for a shoulder pad is described in this paper, where the shoulder pad has a generally inverted U-shape arch member adapted to fit over a shoulder of a wearer and the arch member has chestplate and backplate portions interconnected by a curved shoulder portion.

TL;DR: A spring arch system for a shoulder pad, such as a football shoulder pad as mentioned in this paper, consists of inner and outer arches of generally inverted U-shape as viewed from the side.

TL;DR: In this paper, a shoulder pad of the type comprising a pair of arches which overlie the inner shoulders of the wearer, and flaps which extend in front-to-back direction over the shoulders for protecting the outer parts of the shoulders is presented.