Open ducts designed for ready disassembly and re-use

Open ducts for ground heating of hothouses consist of flattened tubes of flexible material such as plastic. The tubes are slit open lengthwise, folded back over tensioned cords and secured by fasteners so as to form the edges of the ducts, the two ends of which remain tubular and are connected to th...

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Bibliographische Detailangaben
Hauptverfasser: FREYCHET, AIME, GOUZY, ANDRE
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:Open ducts for ground heating of hothouses consist of flattened tubes of flexible material such as plastic. The tubes are slit open lengthwise, folded back over tensioned cords and secured by fasteners so as to form the edges of the ducts, the two ends of which remain tubular and are connected to the inlet and outlet pipes of a warm-water circulation system.