Installing fiber insulation

US4235060A · kind A · utility

Inventors

• Robert A. Administrator of the National Aeronautics and Space Frosch · La Cañada Flintridge, US
• David Wang · Issaquah, US
• Aubrey D. Warren · Lakewood, US

Key dates

• Filing date: Dec 15, 1978
• Grant date: Nov 25, 1980
• Expiry date: Dec 15, 1998

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B64G99/00
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A method for installing fragile, high temperature insulation batting in an elongated cavity or in a resilient wire sleeve to form a resilient seal. The batting is preformed to rough dimensions and wrapped in a plastic film, the film being of a material which is fugitive at a high temperature. The film is heat sealed and trimmed to form a snugly fit skin which overlaps at least at one end to permit attachment of a pull cord. The film absorbs the tensile force of pulling the film enclosed batting through the cavity or wire mesh sleeve and is subsequently driven off by high temperature baking, leaving only the insulation in the cavity or wire mesh sleeve.