Flat piece with seal, and process and tool for its manufacturing

• Main Author: SCHUMACHER, STEFAN HOLGER
• Format: Patent
• Language: English; French; German
• Published: 27.10.1999
• Edition: 6
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; BLASTING; CONVEYING; CYLINDERS; ENGINEERING ELEMENTS AND UNITS; GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HANDLING THIN OR FILAMENTARY MATERIAL; HEATING; LIGHTING; MECHANICAL ENGINEERING; PACKING; PERFORMING OPERATIONS; PISTONS; SEALINGS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; STORING; THERMAL INSULATION IN GENERAL; TRANSPORTING; WEAPONS; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

A seal for the outer edge of a component esp. an inner separating wall for a rubbish container, storage chest or a lid has sealing lips (6,7) produced by pressing together the edges of a blow moulded component using inward moving slides. A claimed tool for component mfr. has slides at the outer edges which move inward towards the component edges after closing the tool halves around a pre-inflated, warm preform.