Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Adhesive outermost layer
Patent
1994-06-08
1996-02-27
Davis, Jenna L.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Adhesive outermost layer
428354, 428922, C09V 702
Patent
active
054947553
ABSTRACT:
The present invention relates to a tape for seaming together RF shielding thermal blankets of the kind used for covering the metal components of high power RF transmit and receive communications systems which are susceptible to generating passive intermodulation products, such as the high power transmit antenna boom assemblies of communications spacecraft. The tape is constructed as a composite lay-up of materials which preferably include a plastic film top or outboard layer, a metallized plastic film or metal foil middle layer, and a transfer adhesive bottom layer for securing the middle layer to the outboard layer. The transfer adhesive functions both as a substrate attaching medium and as an electrical isolator for encapsulating the metal surfaces of the middle layer. The tape, when applied to cover a seam between adjacent RF shielding thermal blankets, prevents RF energy from penetrating the seam and contacting any metal-to-metal junctions underneath which could result in the generation of undesirable passive intermodulation products or "PIM".
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patent: 4699830 (1987-10-01), White
patent: 4727221 (1988-02-01), Saitou et al.
patent: 4823229 (1989-04-01), Waterland, III
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patent: 4988550 (1992-01-01), Keyser et al.
patent: 5111354 (1992-05-01), Marzi et al.
patent: 5126985 (1992-06-01), Forrest et al.
Davis Jenna L.
Lockheed Missiles & Space Co., Inc.
Volk H. Donald
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