Filter for a dry cleaning apparatus

Claim 1

A FILTER FOR REMOVING PARTICULATE MATTER AND TREATING A LIQUID SOLVENT AND COMPRISING A FILTER CONTAINER HAVING A CONTAINER INLET ADAPTED TO RECEIVE CONTAMINATED SOLVENT AND A CONTAINER OUTLET ADAPTED TO SUPPLY FILTERED AND TREATED SOLVENT, SAID CONTAINER HAVING AN OPENING AND A COVER FOR CLOSING SAID OPENING, AND A DISPOSABLE FILTER MEMBER INSERTIBLE AND REMOVABLE THROUGH SAID OPENING, SAID FILTER MEMBER INCLUDING A SUPPORT AND A LONGITUDINALLY EXTENDING ACCORDION-PLEATED FILTER PAPER PORTION CARRIED BY SAID SUPPORT, SAID FILTER PAPER PORTION FORMING A PARTITION HAVING ONE SIDE IN COMMUNICATION WITH SAID CONTAINER OUTLET AND ANOTHER SIDE IN COMMUNICATION WITH SAID CONTAINER INLET, SAID FILTER PAPER PORTION COMPRISING A UNITARY FILTERING SHEET OF INTERWOVEN FIBERS FOR REMOVING PARTICULATE MATTER FROM SAID SOLVENT AND SOLVENT CONDITIONING MEANS INCLUDING A SURFACE ACTIVE AGENT PERMANENTLY HELD BY SAID FIBERS FOR TREATING SAID SOLVENT AND A DETERGENT COMPLETELY SOLUBLE IN SAID SOLVENT AND RELEASABLY HELD BY SAID FIBERS FOR DISPENSING INTO SAID SOLVENT FOR USE SOLELY OUTSIDE SAID FILTER MEMBER, SAID INTERWOVEN FIBERS BEING COTTON LINTERS AND SAID SURFACE ACTIVE AGENT BEING ACTIVATED CARBON COMBINED IN APPROXIMATELY EQUAL PARTS BY WEIGHT TO FORM A FILTERING SHEET WEIGHING APPROXIMATELY 140 POUNDS PER 3000 SQUARE FEET.