Multi impact resistant safety helmet for cyclist

Abstract From the Canadian patent

The helmet comprises a rigid smooth-surfaced outer, shell, a memory material intermediate layer and a shock-absorbing inner liner. The intermediate layer, once deformed under impact is adapted to regain its initial form, therefore protecting the wearer's head even under a multi-impact fall. Lengthwise ventilation openings are made through the helmet. The outer shell extends inwardly through the openings. The intermediate layer protrudes peripherally downwardly beyond the outer shell and the, shock-absorbing liner covers the entire inner surface of the intermediate layer. The intermediate layer also defines an increased-thickness area at the rear of the helmet to protect the, back of the …