초록 ▼

A flexible multi-layered covering article 10 for protection against the hazards of exposure to the environment of outer space. The covering 10 includes an outer layer section 12 comprising an outermost lamina 14 of woven expanded tetrafluoroethylene yarns (Gore-Tex) for protecting against abrasion a

A flexible multi-layered covering article 10 for protection against the hazards of exposure to the environment of outer space. The covering 10 includes an outer layer section 12 comprising an outermost lamina 14 of woven expanded tetrafluoroethylene yarns (Gore-Tex) for protecting against abrasion and tearing, an underlying weave 16 of meta-aramid yarns (Nomex) and para-aramid yarns (Kevlar) for particle impart protection, an electrostatic charge dissipation and control system 18 incorporated therein, and a chemical contaminants control barrier applied as a coating 19. A middle section includes a succession of thermal insulating layers 21 of polymeric thermoplastic or thermoforming material, each of which is coated with a metal deposit of high infra-red emissivity and low solar radiation absorption characteristics and separated from adjacent insulating layers 21 by a low thermal conductance material 26. The covering 10 further includes a radiation attenuating layer 28 of a tungsten-loaded polymeric elastomer binder for protecting against “bremsstrahlung”radiation and an inner layer 32 of “rip-stop”polyester material for abrasion protection. A chloroprene coating may be supplied the polyester-material for added micrometeroid protection. Securing means 36 of low heat conductance material secures the multi-layers together as a laminar composite.

대표청구항 ▼

A flexible covering article for providing protection against the hazards of exposure to the environment of outer space and extraterrestrial surfaces, said covering article comprising: an outer layered section including an outermost lamina of woven expanded tetrafluoroethylene yarns for protecting ag

A flexible covering article for providing protection against the hazards of exposure to the environment of outer space and extraterrestrial surfaces, said covering article comprising: an outer layered section including an outermost lamina of woven expanded tetrafluoroethylene yarns for protecting against abrasion and tearing, an underlying lamina of interwoven meta-aramid fiber yarns and para-aramid fiber yarns which are also woven to the inner side of said outermost lamina section, means including a plurality of electrically conductive elements woven in said underlying lamina with said meta-aramid and para-aramid fiber yarns for distribution and dispersion of electrostatic charges which may accumulate on said outer layered section and for providing a potential discharge path for said charges, and chemical protection means in the form of a coating applied to the inward side of said interwoven meta-aramid and para-aramid fiber yarns for protecting against chemical attack from chemical contaminants comprised of spacecraft propellants; a middle section comprised of a plurality of successively adjacent thermal insulation layers in the form of thin films or fabrics of polymeric thermoplastic or thermoforming resin material, each of which is coated on one surface by a deposit of metallic material which exhibits a high degree of infra-red emissivity and low absorption of solar radiation, and a low thermal conductive spacer means for spacing each of said thermal insulation layers, to preclude thermal “shorting”between said thermal insulation layers; a flexible radiation attenuating section for protecting against secondary radiation produced by the bremsstrahlung effect and comprised of a layer of flexible binder material loaded with micron sized powder particles of a high density, high atomic number material uniformly dispersed therein; an innermost layer of woven polymeric thermoforming resin yarns for protecting against abrasion; and means for securing all of said layers of said covering together in a flexible laminated composite relationship.