A protective impact device is provided that produces an approximately constant force during compression. The device distinguishes several structural features. First, the cross-sectional area in between two impact surfaces increases over the stroke distance when compression takes place. Second, a compressible fluid containing vessel, held in between two impact surfaces, defines an outer shape with a positive second derivative slope defined from one impact surface towards the other impact surface. Third, orifices allow the fluid to bleed out from the compressible vessel when an impact force causes compression of the protective impact device. The resulting approximately constant force scales more or less linearly with impact energy, regardless of impact velocity caused by the impact force. Applications include athletic equipment, automotive bumpers, aircraft landing gear, and any other application that would benefit from maximum energy absorption during an impact.

The invention includes a protective headpiece and components thereof and methods for their use. Preferred examples comprise a helmet component, a plurality of piers joining said helmet component to a shoulder pad component and an inner hat component permitting the wearer the ability to move the head from side to side and/or up and down within the helmet component without moving the helmet component. The helmet component may comprise a plurality of fluid-filled floating plates or floats on the inner surface thereof to cushion the head against impact during activities including, for example, football, race car driving, military activities and the like.

Disclosed embodiments include methods, computer program products, and systems. Given by way of example only and not of limitation, in various embodiments a method includes: determining an event; actuating a cushioning element in response to the determining the event, the cushioning element including one or more tension-bearing members; and dissipating at least some of an energy associated with a collision based on deforming at least one of the tension-bearing members during the collision, the deforming including substantially inelastically stretching the at least one of the tension-bearing members.

A brain injury reduction system provides a protective measure that temporarily or decreases venous drainage out of the intracranial compartment during or immediately before and during a sudden change in acceleration of an individual's head. Specifically, a wearable helmet or other wearable structure of the brain injury reduction system detects an impending collision and determines whether a protective measure is needed. If so, one or more actuation devices provides the protective measure to reduce venous drainage through one or both of the internal jugular veins or paravertebral venous plexus. A first actuation device stimulates a gag reflex or valsalva-like maneuver to reduce venous drainage through the paravertebral venous plexus. A second actuation device can physically compress the internal jugular veins. Thus, the brain injury reduction system minimizes the detrimental impact that may occur due to the sudden change in acceleration of the individual's head

A hydrating mouthguard. The mouthguard includes a base having U-shape with a front periphery and a rear periphery. A labial wall upstand from the front periphery of the base and a lingual wall upstands from the rear periphery of the base. A channel sized to receive a user's upper teeth is defined in between the labial wall and the lingual wall. The mouthguard further includes at least one receptacle having an entrance opening and an exit opening. At least one tube runs from the entrance opening and includes an opposing open end 20. A valve selectively allows a fluid to travel from the receptacle to the tube and out the open end.

The invention includes a protective headpiece and components thereof and methods for their use. Preferred examples comprise a helmet component, a plurality of piers joining said helmet component to a shoulder pad component and an inner hat component permitting the wearer the ability to move the head from side to side and/or up and down within the helmet component without moving the helmet component. The helmet component may comprise a plurality of fluid-filled floating plates or floats on the inner surface thereof to cushion the head against impact during activities including, for example, football, race car driving, military activities and the like.

A hydrating mouthguard. The mouthguard includes a base having U-shape with a front periphery and a rear periphery. A labial wall upstand from the front periphery of the base and a lingual wall upstands from the rear periphery of the base. A channel sized to receive a user's upper teeth is defined in between the labial wall and the lingual wall. The mouthguard further includes at least one receptacle having an entrance opening and an exit opening. At least one tube runs from the entrance opening and includes an opposing open end 20. A valve selectively allows a fluid to travel from the receptacle to the tube and out the open end.

A protective sports helmet that includes an energy attenuating faceguard connection system, which includes at least one connector that secures the faceguard to the helmet shell without a connection point in the shell's brow region. The lack of a brow region connection point results in a gap or clearance between the faceguard and the shell that has a functional interplay with the connector upon an impact to the faceguard. In general terms, when a substantially on-center impact to the faceguard occurs, the faceguard is displaced towards the shell and the connector bracket flexes outward relative to the helmet shell to help dissipate impact energy.

An pressurized injectable mouthpiece for athletes in contact sports and other activities. The present invention is configured to be used at an pressurized fashion and is able to be injected with an gel-like supplement. The pressurized injectable mouthpiece comprises of an tab at the front base of the mouthpiece. Further, the present invention comprises suction vents throughout the outer base portion of the mouthpiece. The pressurized injectable mouthpiece further comprises air pockets coupled throughout the inner portion of the mouthpiece allowing the present invention to be used at an pressurized fashion.

Body protection padding with non-bursting gas cells preferably includes at least one base shell, an inside gas cell impact layer and an outside gas cell impact layer. The gas is preferably air, but could be any other suitable gas, such as pure nitrogen or argon. Body protection padding includes shoulder-chest pads, knee pads, hip pads, thigh pads and any other type of sports protective padding. The gas cells in the inside and outside gas cell impact layers do not burst upon impact. The at least one base shell is typically used in the body protection padding. Each gas cell layer includes a plurality of gas cells created between two plastic sheets. The inside and outside gas cell impact layers may be permanently or removably attached.