Wavecel, LLC

Apex Biomedical Company, LLC

Jeffrey Bennett

Michael Bottlang

Steven M Madey

Stanley Tsai

Devin Knowles

Kevin Knowles

An impact-absorbing structure that includes a plurality of interconnected cells forming a sheet, each cell having a sidewall and a longitudinal axis. Each cell may be configured to absorb energy through plastic deformation in response to an applied load, and a sidewall of at least one cell may include a geometric perturbation that is oriented in a direction that is not parallel to the longitudinal axis of the cell. The geometric perturbation may reduce the load required to cause plastic deformation of the cell.

Energy-absorbing structure with defined multi-phasic crush properties

Embodiments herein employ a novel strategy based on a floating cellular liner that acts as a torsional suspension system to dampen rotational acceleration, such as head acceleration in a helmet, in response to an oblique impact. Specifically, the torsional suspension consists of an anisotropic cellular liner that is at least partially recessed inside a more rigid adjacent shell, relative to which the cellular liner can simultaneously undergo translation and in-plane compression.

Protective liner for helmets and other articles

Growing community of inventors

Portland, OR, United States of America

Jeffrey Bennett