Anti-concussive helmet and alarm system therefor

A helmet for dissipating impact energy and indicating the reception of impact energy associated with the predefined impact energy profile;

• comprising:
• a protective inner portion comprising a rigid shell formed as a single unit;
• and
• a protective outer portion formed as a plurality of rigid shell segments and having a pneumatic impact absorber disposed thereon;
• each shell segment being operably coupled to a corresponding region of the protective inner portion by a respective plurality of spring assemblies mounted therebetween;
• each spring assembly comprising an elongated spring disposed within a sleeve and contacting an inner wall of the sleeve, the elongated spring resisting a compressing force of an impact to the corresponding shell segment, the sleeve imparting a substantially constant frictional force to the elongated spring moving therethrough such that the spring assembly absorbs impact energy via compression of the elongated spring and friction between the elongated spring and sleeve;
• each spring assembly further comprising a switch for triggering a resettable alarm in response to compression of the elongated spring by an amount indicative of a threshold level of impact energy.