F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
F16K15/00—Check valves
F16K15/20—Check valves specially designed for inflatable bodies, e.g. tyres
F16K15/202—Check valves specially designed for inflatable bodies, e.g. tyres and with flexible valve member
Ensemble compose d'une poche d'air, d'une pompe et d'une soupape, destine a etre incorpore a des chaussures, notamment des chaussures de ski
Procede de conservation d'un liquide a l'abri de l'air dans un recipient entame, et dispositif de conservation mettant en oeuvre ledit procede