Hazards protection for space suits and spacecraft
Patent 4923741 Issued on May 8, 1990. Estimated Expiration Date: 
June 30, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
June 30, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesInventorsApplicationNo. 213880 filed on 06/30/1988US Classes:442/187, Including strand precoated with other than free metal or alloy428/328, Heavy metal or aluminum or compound thereof428/422, Addition polymer is perhalogenated428/447, As siloxane, silicone or silane428/458, Next to polyester, polyamide or polyimide (e.g., alkyd, glue, or nylon, etc.)428/474.4, Of polyamide428/911, PENETRATION RESISTANT LAYER442/203, Woven fabric is characterized by a particular or differential weave other than fabric in which the strand denier or warp/weft pick count is specified442/231, Chemically deposited metal layer (e.g., chemical precipitation or electrochemical deposition or plating, etc.)442/246Three or more fabric layersExaminersPrimary: McCamish, Marion E.Attorney, Agent or FirmInternational ClassesB32B 007/00B32B 027/00 AbstractA 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. | |
