Abstract: The invention concerns a hearing device for a protective helmet with a receiving deice for auditory signals, that at the very least are deliverable from the earphones arranged on the inner surface of the protective helmet. The invention has as its basic function to reduce the volume of the helmet contruction and the weight of the hearing device in relation to the usual construction, and to make the positioning of the earphones on the ears of the helmet wearer unnecessary. The purpose will be met in that the earphones in the outer auditory canal of the helmet wearer will be developed as importable earplugs. The auditory signals that are supplied by a receiving device consisting of a receiver and a coupled transmitter will be transmitted from the transmitter of the receiving device over a wireless transmission line that is integrated into the earplug-receiver of the earplug.

Abstract: A suite for the support of the body in respect of acceleration forces has ducts running therethrough forming pressure bodies which are distributed among different suit areas and are filled with a pressure-generating medium, which serves at the same time as the thermal conditioning agent, which is supplied from a pressure supply unit which does not hinder the heat exchange between the body and the cooling medium so as to function as a heat suit. The comfort of wear is improved with simultaneous protection against acceleration forces and a tempering of the body by circulating a heat carrier medium which can flow through at least individual areas of the suit. The areas are connected to a heat exchanger.

Abstract: A helmet with a forward face opening and a downward neck opening comprises a hard outer shell and a custom fittable and split inner shell which fits the head of the wearer without play, is easy to put on and take off, and has a high degree of mechanical stability and provides optimal wearer comfort. For this purpose the inner shell is connectable with the outer shell and it has a fixed inner contour custom fitted to the wearer's head, a one-piece outer shell is slipped over and forms the closure for the inner shell.