The invention relates to a multi-step method with a number of processes and sub-processes that interact to allow for the selection, design and/or manufacture of a protective sports helmet for a specific player, or a recreational sports helmet for a specific person wearing the helmet. Once the desired protective sports helmet or recreational sports helmet is selected, information is collected from the individual player or wearer regarding the shape of his/her head and information about the impacts he/she has received while participating in the sport or activity. The collected information is processed to develop a bespoke energy attenuation assembly for use in the protective helmet. The energy attenuation assembly includes at least one energy attenuation member with a unique structural makeup and/or chemical composition. The energy attenuation assembly is purposely engineered to improve comfort and fit, as well as how the helmet responds when an impact or series of impacts are received by the helmet.

A heads-up projection device configured to be arranged on or in a helmet, for detecting and processing data and for reproducing the data in a virtual image within the view field of an eye of a user of the helmet. The device comprises a housing in which operating elements are arranged for detecting and processing data and/or reproducing the data in an imaged manner, and a combiner panel arranged on the housing. The housing is elongated and has a curved geometry such that the housing can be arranged substantially in the front region of the helmet above the eye(s) of the user, and the combiner panel can be positioned in front of the eye of the user. Also described is a helmet configured for arranging the heads-up projection device on or in the helmet.

Various embodiments relating to methods for evaluating injury mitigation performance of helmets that are used for snow sports (e.g., skiing or snowboarding) are described. In one embodiment, a method for evaluating injury mitigation performance of a helmet includes applying a first and a second impact configuration to a helmet. The first and the second impact configurations include a plurality of impacts between the helmet and a metal plate. The metal plate is tilted at a first predetermined angle for the first impact configuration and at a second predetermined angle for the second impact configuration. The method further includes generating acceleration and velocity data based on impacts that occur as part of the two impact configurations. The method further includes determining injury risk values based on the generated acceleration and velocity data. The method also includes determining an overall injury risk metric based on the injury risk values and exposure values.

Various embodiments relating to methods for evaluating injury mitigation performance of helmets that are used for contact sports (e.g., rugby) are described. In one embodiment, a method for evaluating injury mitigation performance of a helmet includes applying first, second, and third impact configurations to a first helmet. The method further includes generating acceleration and velocity data based on impacts that occur as part of the three impact configurations. The method further includes determining injury risk values based on the generated acceleration and velocity data. The method also includes determining an overall risk metric based on the injury risk values and exposure values.

A modular helmet interface with a mounting cleat, threaded insert, and adhesive layer is provided. In one aspect, a mounting cleat is affixed to a helmet, such as a ballistic helmet, by an adhesive layer, the mounting cleat having an outer portion and a threaded insert within a cavity formed in the outer portion. The outer portion has an inward facing surface configured to receive an adhesive layer for coupling the inward facing surface to the helmet surface. In another aspect, a mounting cleat is secured to a helmet by way of a cleat-receiving securing member, the securing member affixed to the helmet by an adhesive layer. In a more limited aspect, a helmet having multiple mounting cleats configured to support an accessory mounting rail or a helmet mount assembly.

A modular helmet interface with a mounting cleat, threaded insert, and adhesive layer is provided. In one aspect, a mounting cleat is affixed to a helmet, such as a ballistic helmet, by an adhesive layer, the mounting cleat having an outer portion and a threaded insert within a cavity formed in the outer portion. The outer portion has an inward facing surface configured to receive an adhesive layer for coupling the inward facing surface to the helmet surface. In another aspect, a mounting cleat is secured to a helmet by way of a cleat-receiving securing member, the securing member affixed to the helmet by an adhesive layer. In a more limited aspect, a helmet having multiple mounting cleats configured to support an accessory mounting rail or a helmet mount assembly.

Systems, methods, and computer-readable media are described for predicting a neurological injury to a participant in an activity. The activity can be, for example, an athletic activity that involves repeated, high-impact collisions between participants. Sensor data reflecting interactions between participants in the activity is received from various wearable and non-wearable sensors. The sensor data is evaluated in conjunction with a baseline neurological risk profile of a participant to determine a likelihood that the participant has suffered a potential neurological injury. If this likelihood meets a threshold risk level, an onsite request/response test is initiated to glean more information relating to the participant's condition. Response data associated with the onsite test is cognitively evaluated to determine an updated likelihood of neurological injury to the participant and a follow-up action is determined based on the updated likelihood of neurological injury.

A helmet comprising: inner and outer shells configured to slide relative to each other; and a connector connecting the inner and outer shells so as to allow the inner and the outer shells to slide relative to each other, the connector comprising: an attachment part attached to one of the inner shell and the outer shell; wherein: the attachment part comprises one or more protrusions and the inner or outer shell attached to the attachment part comprises one or more channels into which the protrusions extend, the protrusions and channels are configured such that the protrusions can move within the channels in an extension direction of the protrusions, during sliding of the inner and outer shells relative to each other, and the protrusions comprise an abutment member configured to abut an abutment portion of the channel to prevent the protrusion leaving the channel.

A personal protective equipment wearing detection apparatus is provided which can accurately detect the approach or contact of a person's head by use of a plurality of contact detection sensors. A personal protective equipment wearing detection apparatus 100 includes a headband contact detection sensor 110 and a chin strap contact detection sensor 120, which are mounted on a headband 92 and a chin strap 94 of a helmet 90, respectively. The headband contact detection sensor 110 and the chin strap contact detection sensor 120 are connected to a controller 103 of a detection apparatus body 101. While one of the two contact detection sensors, the headband contact detection sensor 110 and the chin strap contact detection sensor 120, outputs a contact detection signal to the controller 103, the controller 103 connects the other contact detection sensor to GND.

A safety helmet includes a helmet shell that fits a human head and reaches up to his/her forehead area and a moveable, transparent visor mounted on the helmet shell, wherein an adapter device for attaching helmet attachments is arranged on the helmet shell at the forehead area. A rail leading towards the back of the head designed for the bearing and guidance of the visor is arranged on the adapter device.