Method of forming transmission lines using tubular extendible structures
OwnerHerman Lowenharinventor
Life of this patent
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Abstract
Transmission lines using tubular extendible elements in which two such elements are combined to form a coaxial type transmission line or a two-wire transmission line and in which a single element is constructed as a two-wire transmission line and tubular extendible elements and other structures using materials having various temperature coefficients.
Claims13
The method of producing a web that is furlable when wound flat onto a spool and which will curl longitudinally into a curved tubular shape when unfurled comprising the steps of
- forming a web of a composite of a resin having therein a plurality of fibers of two materials each having a selected and different coefficient of thermal expansion to reduce changes in dimension due to temperature variation,
- curing to a set state the web of composite material in a curled condition with a desired stress, and winding the web along its length onto a spool.
The method of producing a web which is furlable when wound flat onto a spool and which will longitudinally curl into a curved shape when unfurled comprising the steps of
- winding a plurality of fibers of two materials each having a selected and different coefficient of thermal expansion, said coefficients being selected so as to reduce change in dimension due to temperature variation to produce an elongated sheath having two separate layers which are connected at the edges thereof,
- impregnating the sheath with a resin matrix material,
- overlapping the two layers and setting them in a curved form, and cutting the connecting edges of the overlapped layers to form separate layers.
Dependencies are inferred from the claim text.