A lint screen assembly for use in an elongated oven is provided to protect the duct work and nozzles which direct heated air against the fabric being heat treated within the range and is constructed so as to afford winding means for cleaning and rolling up a single pass of fabric intermittently in predetermined...http://www.google.fr/patents/US4435909?utm_source=gb-gplus-shareBrevet US4435909 - Automatic lint screen