The present invention relates to a sports helmet comprising an outer shell (2) and an inner liner (1), said sports helmet being characterized in that said shell and said liner define between them firstly a ventilation circuit (A) designed to remove hot air, and defined between slots (11a, 11b, 21a, 21b) provided, respectively, through the inner liner (1) and through the outer shell (2), and secondly a venting circuit (V) designed to defog an independent piece of vision equipment (M), and defined between suction inlets (10) provided in the front portion of the helmet and discharge outlets (20) provided in the outer shell (2), said helmet further comprising an adjustable shutter (3) making it possible to modify the air flow of the ventilation circuit (A) and the air flow of the venting circuit (V) in reversible manner.

The present invention is a breath deflector apparatus and method of use. The apparatus comprises a breadth deflector preferably connected to a goggle frame, with the goggle frame being connected to an adjustable securement device that is adjustably connected to a preferably cold weather helmet. The breath deflector apparatus is preferably adjustable by twisting a knob mounted to the front of the helmet and is preferably adapted such that once adjusted, the breath deflector moves in synchronization or unison with the movement of a user's head within the helmet and thus prevents loss of securement and maladjustment of the breath deflector while using the breath deflector and during movement of the user's head.

A face shield assembly for use with a hard hat to protect a user from injury caused by an arc-flash event. Ventilation slots are provided at the sides of the assembly below an apparatus used for connecting the face shield assembly to a hard hat. Alternatively, lower front ventilation slots are provided, which also improve voice communication by the user. The face shield assembly can have either side or front ventilation slots, or both.

A face shield assembly for use with a hard hat to protect a user from injury caused by an arc-flash event. Ventilation slots are provided at the sides of the assembly below an apparatus used for connecting the face shield assembly to a hard hat. Alternatively, lower front ventilation slots are provided, which also improve voice communication by the user. The face shield assembly can have either side or front ventilation slots, or both.

Multi-layer anti-fog compositions comprising an anti-fog layer and a protective layer. The anti-fog layer comprises cellulose acetate and a plasticizer and has opposing major planar surfaces. The protective layer has opposing major planar surfaces that are oriented substantially coplanar, at least in part, to the anti-fog layer that forms a multi-layered structure. The multi-layer anti-fog compositions further comprise one or more connectors, and at least one of the connectors extends through the multi-layered structure.

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 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 method for regulating, with a computer, a resistive element arranged to deice and/or demist a support, the method including: a) a loop for monitoring the temperature T and the moisture level H at the support; b) a deicing and/or demisting sequence which, as long as the temperature T and the moisture level H monitored by the monitoring loop a) are indicative of an absence of frost or mist on the support, keeps the resistive element inactive and, in the contrary case, demands, in a step b2), the circulation of a current I in the resistive element so that the latter dissipates a thermal power P.sub.th, adjusted according to the temperature T and the moisture level H, and providing deicing or demisting of the support over a predetermined period D.sub.p.

A helmet has: a helmet shell; a battery connected to the helmet shell; an electric connector connected to the helmet shell; and at least one electric device electrically connected to the battery and to the electric connector. In response to the electric connector being electrically connected to an external power source and receiving electric power for the external power source, electric power is supplied to the at least one electric device from the electric connector. In response to the electric connector not receiving electric power from the external power source, electric power is supplied to the at least one electric device from the battery.

The present invention is to provide a full-frame adhesive anti-fog film structure, comprising: an anti-fog film, which has a front side and a back side opposing the front side; and an adhesive, which is disposed at an edge of the back side and arranged along the edge so as to be frame-shaped. The anti-fog film of the present invention is attachable to a planar, cylindrical or spherical lens through the full frame-shaped adhesive so that not only can the anti-fog film be fully attached to the lens but the full attachment of film also prevents bubbles from forming between the two attached surfaces. Also, an airtight space is formed between the full-frame adhesive anti-fog film structure and the lens to stop heat transfer and prevent fog from being formed, so as to not only provide good vision to users but also reduce the chance that the user will fall prey to an accident if the user's view is blocked.