Plastic film for coverage with loose openings for weight insertion at its edges
申请(专利)号：
AU20020330652
申请日期：
2002-08-29
公开/公告号：
AU2002330652A1
公开/公告日期：
2004-03-19
申请(专利权)人：
DAIOS, ASTERIOS
被引量：
摘要：
The invention refers to a plastic film for coverage with loose openings for weight insertion at its edges that is used in linear cultivations whose edges () have been elongated up to 100% and have been folded and welded onto the main part of the plastic film with consecutive umbrella weldings (). Due to the elongation of its edges () and the shape of the umbrella weldings (), consecutive hoppers () are formed along the edge of the film. During the use of the film and due to the inclination that the film has towards its edges the hoppers ()) that form the loose openings for the fluid material in the weight insertion vaults () can readily accumulate any fluid material () and guide it by means of gravity to the weight vaults () where it is entrapped. Hence the weight insertion process becomes a rather simple matter without excessive cost and strenuous work.
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