Patent ID: 9179727
Filing Date: 2015-11-10
Classification: A42B

Abstract:
1. A helmet comprising: an inner shell for containing the head of a wearer, an outer shell, said outer shell being pivotally and rotatably mounted on said inner shell, wherein a shape of said outer shell includes a larger radius of curvature on a posterior end compared to a smaller radius of curvature on an anterior end, a gap located between said inner shell and said outer shell, and a pivotal connector located in said gap, said pivotal connector being secured to said inner shell and to said outer shell, said pivotal connector including two connector pieces, one of said two pieces extending from one of said inner shell and said outer shell and the other of said two pieces extending from the other of said inner shell and said outer shell, the other piece being a spherical ball joint, the one piece capturing the other piece as a two degree of freedom of movement rotating hinge, the rotating hinge allowing a limited degree of shifting of said outer shell with respect to said inner shell when a force is applied to said outer shell.