Steuler-industriewerke Gmbh

Ernst Rohringer

The invention provides a liner sheet, liner panel system, and method for making same that employ a substantially continuous passage that enhances leak detection and thermal insulation in fluid-containment structures, e.g., double-wall tanks.

Protective liner system having improved leak detection means

Large area lining panels (1) composed of thermoplastic material are used as pouring forms and linings for concrete vessels. On the face of the lining panels (1) that contacts the concrete there are arranged in rows a plurality of anchoring knobs (2) also made of thermoplastic material which have a circular or polygonal cross section with conically inclined surface portions. A plurality of the anchoring knobs (2) are simultaneously placed on the lining panel (1) and joined to it by ultrasonic, vibratory or rotational welding. The placing and welding of the anchoring knobs (2) singly or simultaneously in groups at a predetermined distance from each other is effected in a continuous succession.

Method for producing lining panels which are cast into concrete as an

A method of producing large area lining panels (1) composed of thermoplastic material which are used as pouring forms and linings for concrete vessels. On the face of the lining panels (1) that contacts the concrete there are arranged in rows a plurality of affixing knobs (2) also made of thermoplastic material which have a circular or polygonal cross-section with conically inclined surface portions. A plurality of the affixing knobs (2) are simultaneously placed on the lining panel (1) and joined to it by ultrasonic, vibratory or rotational welding. The placing and welding of the affixing knobs (2) singly or simultaneously in groups at a predetermined distance from each other is effected in a continuous succession.

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Hilgert, Germany

Ernst Rohringer