Gas application helmet with loudspeakers - supplies gas e.g. oxygen@ for breathing via regulating valve or variable flowmeter from source placed at selected position

摘要

The gas is supplied to a desired position on the helmet via a coupling line allowing the throughflow to be regulated. Automatic closure of the visor is pneumatic. The gas supplied under pressure is led to a working cylinder to move a piston which closes the visor. Magnets are mounted at various positions to ensure a perfect closure of the visor. Loudspeakers are installed inside the helmet. Entry of the gas switches on appts. producing acoustic effects. This appts. is also activated by moving a regulating valve or flowmeter to its open position. The acoustic effects can be pleasing noises or music. ADVANTAGE - Makes gas inhalation more attractive, even fun.