Method of disposing of cooling units

  • US 5,074,477 A
  • Filed: 12/12/1990
  • Issued: 12/24/1991
  • Est. Priority Date: 12/18/1989
  • Status: Expired due to Term
First Claim
Patent Images

1. A method of processing polyurethane foam having cells which contain confined fluorochlorohydrocarbon gas, comprising the steps of pulverizing the foam in a suction chamber to destroy the cells and release the confined gas;

  • evacuating the released gas from the chamber;

    mixing the evacuated gas with a liquid;

    admitting the liquid-gas mixture into vessels;

    withdrawing pulverized foam from the chamber; and

    storing the withdrawn pulverized foam in containers.

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