APPARATUS AND METHOD FOR HEATING SELECTED PORTIONS OF AN ARTICLE

• Main Authors: POPP, ROBERT LEE, SALLEE, LORRY FRANCIS
• Format: Patent
• Language: English
• Published: 22.06.1988
• Edition: 4
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; BANDAGES, DRESSINGS OR ABSORBENT PADS; BLASTING; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; FILTERS IMPLANTABLE INTO BLOOD VESSELS; FIRST-AID KITS; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; FOMENTATION; FURNACES; FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; HEATING; HUMAN NECESSITIES; HYGIENE; KILNS; LAUNDERING; LIGHTING; MECHANICAL ENGINEERING; MEDICAL OR VETERINARY SCIENCE; OPEN SINTERING OR LIKE APPARATUS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; OVENS; PERFORMING OPERATIONS; PROSTHESES; RETORTS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TEXTILES; TRANSPORTING; TREATING TEXTILE MATERIALS BY LIQUIDS, GASES OR VAPOURS; TREATMENT OF TEXTILES OR THE LIKE; TREATMENT OR PROTECTION OF EYES OR EARS; WEAPONS; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

An apparatus for heating selected portions of an article (4) includes transport means (2) for moving the article (4) into a heating compartment (6). Shroud means (8), which are disposed within the heating compartment (6) and located adjacent to limited portion of the article (4), direct a stream of heated gas toward a marginal portion of this article (4). Supply means (10, 12) deliver a volume rate flow of heated gas to the shroud means (8), and discharge means (14, 16) remove a volume rate of exhaust gas flow from the heating compartment (6). The discharge means (14, 16) is constructed and arranged to provide a volume rate of exhaust gas flow from the heating compartment (6) which is greater than the volume rate of heated gas flow supplied into the shroud means (8). A corresponding method is disclosed as well.