UNDERGROUND STORAGE TANK FOR FLUIDS AND METHOD OF MANUFACTURE

An underground storage tank for fluids is made by forming hollow wall sections of reinforced plastic on a mold having a surface of double curvature, abutting the wall sections at their congruent open ends, and providing an endless reinforced plastic joint on the line of abuttment. The combination of...

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Bibliographische Detailangaben
1. Verfasser:	PEARSON L E
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS CONVEYING HANDLING THIN OR FILAMENTARY MATERIAL PACKAGES PACKAGING ELEMENTS PACKING PERFORMING OPERATIONS PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE STORING TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	An underground storage tank for fluids is made by forming hollow wall sections of reinforced plastic on a mold having a surface of double curvature, abutting the wall sections at their congruent open ends, and providing an endless reinforced plastic joint on the line of abuttment. The combination of a double curvature surface and multidirectional strength provided by randomly dispersed chopped glass strands in the resin matrix, provides resistance to the crushing forces of the surrounding earth. A planar surface is either formed on or molded into the tank wall for attaching an assembly of fittings thereto.