DOUBLE WALL UNDERGROUND STORAGE TANK

An underground storage tank (10) comprises a cylindrical inner wall (14), a cylindrical outer wall (12) of plastic resin and reinforcement fibers, and a layer of spacer filaments (36) wound around the inner wall (14), the spacer filaments (36) separating the inner (14) and outer walls (12), and the...

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Bibliographische Detailangaben
Hauptverfasser:	CANNAN, EDWARD, B., JR, WIEGAND, JOSEPH, R, BARTLOW, DAVID, H
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 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 GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HANDLING THIN OR FILAMENTARY MATERIAL PACKAGES PACKAGING ELEMENTS PACKING PERFORMING OPERATIONS PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS STORING TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ARTCOLLECTIONS [XRACs] AND DIGESTS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	An underground storage tank (10) comprises a cylindrical inner wall (14), a cylindrical outer wall (12) of plastic resin and reinforcement fibers, and a layer of spacer filaments (36) wound around the inner wall (14), the spacer filaments (36) separating the inner (14) and outer walls (12), and the spacer filaments (36) being at least partially surrounded by voids (40) to enable liquids to flow along the filaments (36). Le réservoir de stockage souterrain (10) selon l'invention se compose d'une paroi interne cylindrique (14), d'une paroi externe cylindrique (12) en résine plastique et fibres de renforcement, et d'une couche de filaments intercalaires (36) enroulés autour de la paroi interne (14), lesdits filaments intercalaires (36) séparant la paroi interne (14) et externe (12) et étant entourés au moins partiellement de vides (40) afin de permettre aux liquides de s'écouler le long des filaments.