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  Ventilated helmet systemUSPTO Application #: 20060031978Title: Ventilated helmet system Abstract: A ventilation system for a helmet that incorporates various elements in different embodiments, including air flow channels in the safety padding, a shell on the safety padding underneath the external shell, thickening of the external shell in the areas of the air flow channels, extrusions in the external shell to facilitate air flow in the air flow channels, and vents in the external shell to feed and exhaust air flow. (end of abstract) Agent: Michael A. Guth - Santa Cruz, CA, US Inventor: Brendan Erik Pierce USPTO Applicaton #: 20060031978 - Class: 002414000 (USPTO) Related Patent Categories: Apparel, Guard Or Protector, For Wearer's Head, Including Energy-absorbing Means, By Interior Pads The Patent Description & Claims data below is from USPTO Patent Application 20060031978. Brief Patent Description - Full Patent Description - Patent Application Claims
BACKGROUND OF THE INVENTION [0001] 1. Field of Invention [0002] The invention relates in general to the field of helmets, and more specifically to a ventilation system for a motorcycle helmet. [0003] 2. Description of Related Art [0004] Safety helmets for motorcycles are typically made in the form of a complete cap that provides an opening in the area of the user's eyes. The helmets are generally provided with an external shell, made from a rigid and strong material, such as polycarbonate, or composite materials, coupled with safety padding inside the shell. The safety padding is often made of expanded polystyrene, expanded polypropylene, or foamed polyurethane, and is itself often lined with a soft material in order to provide comfort to the wearer. [0005] Ventilation is often required both for cooling and to exhaust moisture caused by sweat coming from the rider. The need for ventilation occurs both in the volume under the main shell and in the area of the cheek bar. [0006] Prior art devices have addressed the need for ventilation in motorcycle helmets. For example, U.S. Pat. No. 5,086,520 to Arai utilizes an air inlet on the top portion of the shell to allow for the introduction of air into the shell. This device delivers air to the top of the head and is limited in the manner in which it can cool or dehumidify the interior of the helmet shell. [0007] U.S. Pat. No. 4,555,816 to Broersma illustrates a motorcycle helmet which utilizes air inlets in the cheek bar. Although the air inlet is in the external portion of the cheek bar, the air itself is routed outside the foamed polyurethane liner and then through passages where it can then ventilate the sides, top, and rear of the user's head. [0008] A safety concern for helmets is the helmet's ability to resist penetration of an object through the outer shell. In some helmets, the safety padding is made of expanded polystyrene. In such helmets, the safety padding may tend to split if penetrated by an object, especially if the safety padding has been thinned or had channels added. This aspect of the safety padding may require a helmet to have other modifications in conjunction with adding channels to the safety padding in order to provide maximal penetration resistance. [0009] Prior methods are limited in their ability to provide ventilation to cool the rider's head. What is called for is a better ventilation system for a helmet that maintains the integrity and safety of the helmet. Such a helmet may utilize better ventilation channels while maintaining maximum penetration protection. BRIEF SUMMARY OF THE INVENTION [0010] A ventilation system for a helmet that incorporates various elements in different embodiments, including air flow channels in the safety padding, a shell on the safety padding underneath the external shell, thickening of the external shell in the areas of the air flow channels, extrusions in the external shell to facilitate air flow in the air flow channels, and vents in the external shell to feed and exhaust air flow. BRIEF DESCRIPTION OF THE DRAWINGS [0011] FIG. 1 is a front view of a helmet according to one embodiment of the present invention. [0012] FIG. 2 is a side view of a helmet according to one embodiment of the present invention. [0013] FIG. 3 is a side cut-away view of a helmet according to one embodiment of the present invention. [0014] FIG. 4 is a front cut-away view of a helmet according to one embodiment of the present invention. [0015] FIG. 5 is a rear view of the safety padding of the helmet according to one embodiment of the present invention. [0016] FIG. 6 is a bottom view of the safety padding of the helmet according to one embodiment of the present invention. [0017] FIG. 7 is a side cut-away view of a helmet according to one embodiment of the present invention. [0018] FIG. 8 is a front cut-away view of a helmet according to one embodiment of the present invention. [0019] FIG. 9 is a side cut-away view of a helmet according to one embodiment of the present invention. [0020] FIG. 10 is a front cut-away view of a helmet according to one embodiment of the present invention. DETAILED DESCRIPTION Continue reading... Full patent description for Ventilated helmet system Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Ventilated helmet system patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. 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