Schmitt, D.D.SchmittZiegahn, K.K.ZiegahnGeissler, E.E.GeisslerEisenreich, N.N.EisenreichBuehler, W.W.BuehlerScholz, P.P.ScholzSchmitt, W.W.SchmittBrugger, H.H.BruggerPaungger, S.S.Paungger2022-03-082022-03-081999https://publica.fraunhofer.de/handle/publica/304268NOVELTY - The buoyancy aid is in the form of a vest with a protective collar (3) surrounding the neck region when inflated. The gas for inflation is provided by a solid propellant initiated by electrical energy. Preferably the vest has large volume sections in the chest (2) and back (1) regions. USE - Protection of skiers, tourists etc. ADVANTAGE - Lightweight and immediately ready for operation. DESCRIPTION OF DRAWING(S) - Back section 1 Chest section 2 Protective collar 3de608660patent1998-19807109