Rarefaction pulses are generated in a chamber containing a liquid to be degassed. The rarefaction pulses are generated by creating repeated water hammers in a conduit. The water hammers result in sudden high pressure pulses which deform a stiff springy, impermeable deflection cap. After the water hammer...http://www.google.fr/patents/US5508975?utm_source=gb-gplus-shareBrevet US5508975 - Apparatus for degassing liquids
