Lint extractor for washer-drier

Claim 1

IN A MACHINE FOR WASHING AND DRYING FABRICS DURING WASHING AND DRYING OPERATIONS; A GENERALLY CYLINDRICAL TUB INCLUDING A CYLINDRICAL SHELL, A FRONT WALL AND SPACED INNER AND OUTER REAR WALLS, WHEREBY SAID TUB PROVIDES A TUMBLER CHAMBER BETWEEN SAID FRONT WALL AND SAID INNER REAR WALL, AND PROVIDES A BACK CHAMBER BETWEEN SAID REAR WALLS; A ROTATABLE PERFORATE DRUM POSITIONED IN SAID TUMBLER CHAMBER FOR RECEIVING AND TUMBLING FABRICS DURING THE WASHING AND DRYING OPERATIONS; AN IMPELLER MEMBER LOCATED BETWEEN SAID SPACED REAR WALLS AND HAVING A SUCTION SIDE COMMUNICATING WITH SAID TUMBLER CHAMBER THROUGH AN INTAKE OPENING IN SAID INNER REAR WALL; AN EXHAUST CONDUIT SPACED FROM SAID INTAKE OPENING AND CONNECTING THE AMBIENT ATMOSPHERE WITH SAID BACK CHAMBER THROUGH AN OPENING IN SAID OUTER REAR WALL; DUCT WORK INCLUDING SAID SPACED REAR WALLS AND SAID CYLINDRICAL SHELL OF SAID TUB PROVIDING A SEMI-CIRCULAR AIR FLOW PASSAGE EXTENDING DOWNWARDLY FROM THE PRESSURE SIDE OF SAID IMPELLER MEMBER TO THE BOTTOM PORTION OF SAID CYLINDRICAL SHELL AND THENCE UPWARDLY TO SAID EXHAUST OPENING TO DIRECT THE AIR DISCHARGED FROM SAID IMPELLER TO THE AMBIENT TEMPERATURE; AN AIR INLET OPENING IN SAID CYLINDRICAL SHELL BETWEEN SAID INNER AND OUTER REAR WALLS AND SEPARATED FROM SAID INTAKE AND EXHAUST OPENINGS BY SAID DUCT WORK; HEATING MEANS EXTENDING INTO SAID AIR INLET OPENING TO HEAT AMBIENT AIR ENTERING SAID AIR INLET OPENING; HEATER CONDUIT BETWEEN SAID TUMBLER CHAMBER AND SAID BACK CHAMBER; HEATER DUCT WORK INCLUDING SAID SPACED REAR WALLS AND SAID CYLINDRICAL SHELL CONNECTING SAID AIR INLET OPENING WITH SAID HEATER CONDUIT; AND MEANS FOR EXTRACTING LINT PARTICLES FROM THE AIR STREAM DURING FLOW THROUGH SAID SEMI-CIRCULAR PASSAGE TO THE AMBIENT ATMOSPHERE DURING SAID DRYING OPERATION, SAID MEANS INCLUDING WATER SUPPLY MEANS HAVING AN INLET CONNECTION TO SAID BACK CHAMBER JUXTAPOSED TO SAID AIR EXHAUST OPENING AND OPERATIVE TO DISCHARGE WATER DOWNWARDLY COUNTER TO THE EXHAUST AIR FLOW AND AGAINST THE INSIDE SURFACE OF SAID CYLINDRICAL WALL IN SAID SEMI-CIRCULAR AIR FLOW PASSAGE TO MAINTAIN THE SAME IN A WET CONDITION DURING A DRYING OPERATION.