System and method for dry cleaning articles

  • US 8,123,819 B2
  • Filed: 06/19/2006
  • Issued: 02/28/2012
  • Est. Priority Date: 06/20/2005
  • Status: Active Grant
First Claim
Patent Images

1. A method of dry cleaning articles comprising:

  • inserting articles to be cleaned into a cleaning basket of a dry cleaning machine;

    immersing the articles to be cleaned in a cleaning fluid comprising a siloxane solvent composition;

    agitating the articles in the siloxane solvent composition;

    filtering the siloxane solvent composition through at least one regenerative filter, said regenerative filter having a first pre-coating comprising an activated clay;

    removing the siloxane composition from the articles; and

    regenerating said filter at a periodic time basis by removing said first coating and pre-coating said regenerative filter with a second coating comprising an activated clay for preventing oligomerization of at least one of said first coating activated clay and said solvent.

View all claims

    Thank you for your feedback