A helmet for receiving the head of a hockey or lacrosse player, the helmet having an outer shell and an inner lining covering at least partially the inner surface of the outer shell. In one embodiment, the helmet comprises a skeleton at least partially covered by the inner lining, a movable occipital pad and movable temple pads. The inner lining can be made of an absorptive material such as foam, expanded polypropylene or expanded polyethylene and can be overmolded onto the skeleton. The occipital pad and the temple pads may be arranged with an inward bias so as to help the helmet self-adjust to provide an advantageous fit on the player's head. In some embodiments, the outer shell and skeleton, or the outer shell and the inner lining, cooperate to define a ventilation system.

Baseball caps to be worn on a person's head are provided. According to one embodiment, a baseball cap includes a strap assembly configured to adjust a tightness of the dome on the wearer's head, the strap assembly including an outer strap attached to a first edge portion of the dome and an inner strap attached to a second edge portion of the dome. The inner strap is configured to be movable within the outer strap, and the first cable is configured to draw the inner strap closer to the first edge portion of the dome and the second cable is configured to draw the outer strap closer to the second edge portion of the dome.

A type variable helmet includes a half face unit formed to cover an upper part of a user's head, and an under face unit detachably attached to a lower part of the half face unit and configured to cover a lower part of the head of the user.

A bicycle helmet includes a body, a plurality of air inlets and a plurality of air outlets. The body includes a front portion, an upper portion, a rear portion and an inner portion. The upper portion includes a closed surface. A plurality of dimple structures are formed on the closed surface to produce an aerodynamic effect. The air inlets are formed on the front portion. The air outlets are formed on the rear portion. The inner portion includes a plurality of ribs, the ribs are positioned correspondingly to the air inlet and the air outlet and define air channels therein, an airflow flows through the body due to the airflow entering the body through the air inlets, passing through the air channels and exiting the body through the air outlets.

A ventilated helmet is provided. The helmet includes a shell defining a cavity, the shell having a front section provided with an opening to allow the wearer to see. The helmet also includes a transparent shield adapted having an inner surface and being adapted to substantially close the opening. Finally, the helmet includes a ventilation system having an evacuation subsystem adapted to create an evacuation airflow to evacuate humid air within the cavity to a surrounding environment. The ventilation system further has a pressurizing subsystem adapted to admit a pressurizing airflow within the cavity to create a high-pressure zone and a low-pressure zone within the cavity, wherein when in use, the wearer exhales air within the low-pressure zone, and wherein the high-pressure zone prevents air within the cavity from travelling from the low-pressure zone to the high-pressure zone. A method of evacuating humid air from the cavity is also provided.

A helmet can include a helmet body comprising an energy-absorbing layer and an outer shell disposed over the energy-absorbing layer. An electronic device can be integrated with the helmet body. A first electrical contact can be formed at an exterior of the outer shell and adapted to be in electrical communication with the electronic device. A helmet visor can be coupled to the helmet body with at least one visor arm, the helmet visor comprising controls integrated within the visor. A second electrical contact can be formed at an inner surface of the at least one visor arm and adapted to be in electrical communication with the controls integrated within the visor. The second electrical contact can be adapted to mateably couple with the first electrical contact such that the electronic device and the controls are adapted to be in electrical contact.

A protective helmet has one or more air guiding members configured to place in fluid communication at least one area of the helmet with several ventilation ports for output/expulsion of air to define an area for the passage of air flow independent from, and/or isolated, and/or not in fluid communication with, other areas for the passage of air flows in the helmet.

A cage/chassis integrated air supply system is provided. The system includes a cage/chassis for a vehicle formed of at least one hollow supply tube forming a part of the cage/chassis. The system includes at least one air input port coupled to one end of the at least one hollow supply tube; at least one air output port coupled to another end of the at least one hollow supply tube; an air supply coupled to the at least one air input port; and at least one output hose coupled to the at least one air output port. The at least one output hose is configured to couple to a forced air helmet, wherein the air supply is configured to supply air into the at least one air input port, through the at least one hollow supply tube, through the at least one air output port and through the at least one output hose.

A micro-electro-mechanical (MEMS) exhaust valve-based impact attenuating fluid filled cell for use in cushioning impact and decelerating of a wearer's body portion (e.g. head, shoulder, torso, etc.) after an impact. In combination with the use of accelerometers, pressure sensors, location and other electronics supply signals to a microcontroller, the controlled opening/closing of said exhaust valve (resulting in the expelling of said fluids with an optional combination with cell refill means) when certain parameters exceed a threshold. Individuals who engage in activities that carry a risk of injury to the head from impact in the normal course of the activity could, in combination with regular exams, benefit from a system that produces and updates a kinematic 3D model of the individual's head, including brain matter, cerebrospinal fluid paths, arterial and venous blood flow pathways, as well as the skull, supporting connective tissues and other biological structures in the head suitable for interaction with exogenous stimuli prepared from hypothetical or actual recorded impact events.

A micro-electro-mechanical (MEMS) exhaust valve-based impact attenuating fluid filled cell for use in cushioning impact and decelerating of a wearer's body portion (e.g. head, shoulder, torso, etc.) after an impact. In combination with the use of accelerometers, pressure sensors, location and other electronics supply signals to a microcontroller, the controlled opening/closing of said exhaust valve (resulting in the expelling of said fluids with an optional combination with cell refill means) when certain parameters exceed a threshold. Individuals who engage in activities that carry a risk of injury to the head from impact in the normal course of the activity could, in combination with regular exams, benefit from a system that produces and updates a kinematic 3D model of the individual's head, including brain matter, cerebrospinal fluid paths, arterial and venous blood flow pathways, as well as the skull, supporting connective tissues and other biological structures in the head suitable for interaction with exogenous stimuli prepared from hypothetical or actual recorded impact events.