There are provided a high-yield economical, refrigerant processing apparatus for collected equipment which can recover and regenerate a liquid refrigerant by highly efficient thermal conversion and charge collected equipment with the liquid refrigerant, without releasing the refrigerant into the air,...http://www.google.com.au/patents/US6779359?utm_source=gb-gplus-sharePatent US6779359 - Refrigerant processing apparatus for collected equipment, and oil separator
