Gencorp Property, Inc.

Hubert Wittig

Horst Dragon

Two profile sections ( ), such as two sealing, trimming or finishing strips for use in motor vehicle body construction, are joined together end to end by use of a heat-sensitive foil ( ) such as made of thermoplastics material. The profile sections ( ) are clamped in respective retaining devices ( ) and the foil ( ) is unwound from a roll ( ) into position between the facing ends of the profile sections. Heaters ( ) are moved into position for heating the foil ( ) and the ends of the profile sections and are then withdrawn. The two retaining devices ( ) are then moved towards each other so as to move the ends of the two profile sections into contact with opposite sides of the heated foil ( ) which thus heat-bonds the end of the profile sections together. The foil ( ) is provided with a plurality of through slits ( A) (or is in some other way rendered air-permeable) so that air can pass from one profile section to the other, through the bonded foil ( ), in use of the joined profile sections (e.g. when they are fitted in position or when they are partially compressed to carry out a sealing function), thus preventing pressure build-up and possible bursting of the joint.

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Viersen, Germany

Hubert Wittig