Tensioned inflatable cover module
US-7562493-B2Abstract
Modular inflatable cover for buildings, comprising separate coaxial conduits ( 30 ) secured together by tensionable link ( 50 ) and fluid-connected by coaxial inflatable tube ( 24 ). Tube ( 24 ) securely embraces sliders ( 32 ) that in turn closely but freely embrace conduits ( 30 ). Sliders ( 32 ) are urged by springs ( 34 ) to keep tube ( 24 ) taught. Elastic cinctures ( 26 ) on tube ( 24 ) and springs ( 34 ) tensionably cooperate against inflation means to provide reliable control of openings between adjacent modules in an assembly. Conduits ( 30 ) are securely torqued to ground anchors ( 40 ) by coupling ( 42 ). End covers ( 44 ) and sliders ( 32 ) are provided to compensate for and facilitate length shrinkage of tube ( 24 ), upon inflation. The present invention provides a variable cover with integral support that is uniquely capable of exploiting canyons and other ground depressions for an unprecedented scale of environment control. Applications include greenhouses, shutters, insulation and shelters.
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