Patent ID: 9681696
Date: 2017-06-20
CPC Classifications: A42B,A43B,B32B,F16F,Y10T

Claim:
1. A helmet, helmet liner or a combination of a helmet and helmet liner, comprising: said helmet, helmet liner or a combination of a helmet and helmet liner including at least one inner compartment, chamber or bladder; the at least one inner compartment, chamber, or bladder includes a lubricating media with at least one magnetorheological liquid for use to absorb shock by changing an alignment of metal particles of the magnetorheological liquid to alter a flow resistant structure in the at least one inner compartment, chamber or bladder in order to control shock absorption; at least one electronic control system included in the helmet, helmet liner or a combination of a helmet and helmet liner controls the flow resistance of the magnetorheological liquid of the at least one chamber compartment or bladder by changing an alignment of metal particles of the magnetorheological liquid to alter the flow resistant structure in the at least one inner compartment, chamber or bladder; at least one outer compartment, chamber, or bladder outside said inner compartment, chamber, or bladder; and said outer compartment, chamber, or bladder and said inner compartment, chamber, or bladder being separated at least in part by an internal sipe; and wherein said internal sipe is formed by at least a portion of an inner surface of said outer compartment, chamber, or bladder and at least a portion of an outer surface of said inner compartment, chamber, or bladder; and the inner and outer surface portions forming the internal sipe oppose each other and are configured to move relative to each other in a sliding motion, the internal sipe includes a lubricating media with at least one magnetorheological liquid for use to increase or decrease a sliding resistance between the inner and outer surface portions forming the internal sipe by changing an alignment of metal particles of the magnetorheological liquid to alter a flow resistant structure in the internal sipe in order to control the sliding motion between the inner and outer surface portions forming the internal sipe, said flow resistant structure of said magnetorheological liquid in said internal sipe being controlled by the at least one electronic control system by controlling the alignment of the metal particles in the magnetorheological liquid to alter the flow resistant structure in the at least one internal sipe, and the at least one internal sipe extends continuously without any attachments between the inner and outer surface portions forming the at least one internal sipe from at least a sidemost extent of a first side of the inner surface of the outer bladder, compartment or chamber to at least a midpoint of the inner surface the outer bladder, compartment or chamber as viewed in a frontal plane cross-section when the helmet, helmet liner or a combination of a helmet and helmet liner is upright and in an unloaded position.