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Canopy for screening objects
| Details |
Inventors: Aisslinger, Dieter;
Assignee: Synteen Gewebe Technik GmbH (Klettgau-Erzingen, DE)
Primary Examiner: Sotomayor; John B.
Assistant Examiner:
Attorney, Agent or Firm: Farley; Walter C.
A canopy screening an object, especially its thermally emitted waves and/or against hf electromagnetic waves in the microwave range, especially radar waves, has external textile sheets (1, 2) connected by a support fabric (13), i.e., a spacer, which forms a center space (10). At least one external surface, i.e. its filaments are provided with a coating (6, 7) which in part or in whole is reflecting in the thermal range and/or absorbing in the microwave range. |
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DETAILED DESCRIPTION An object of the present invention is to provide a canopy of the above kind that shall be a universal and easily handled accessory and of which the effectiveness shall be retained over a substantial time.
This problem may be solved in that external textile surfaces are connected to each other through a support fabric or spacer forming a center space and in that at least one external textile surface or its filaments shall be coated in part or in whole with a layer that reflects in the thermal range and/or absorbs in the microwave range.
One or both textile external surface(s) may be grid-shaped to enhance convective heat adaptation.
Briefly described, the invention comprises a canopy to obscure an object by confining its thermally emitted waves and absorbing high-frequency (hf) electromagnetic waves in the microwave range, especially radar waves, comprising first and second external textile sheets, means for interconnecting said sheets to each other including a support fabric forming and maintaining a central space between said sheets, and a coating on at least one external surface of said sheets which reflects incident energy in the thermal range and absorbs incident electromagnetic energy in the microwave range.
The layer or coating of the invention illustratively can be a synthetic resin pigmented with carbon black or fibers.
Moreover magnetic powders or pigments can be mixed into this layer and/or this layer can be enriched with magnetic, spherical iron oxide granules.
Thereby an impermeable screen is formed on the external textile surface that will absorb hf electromagnetic radiation over a wide frequency band.
Simultaneously this double-surface screen also insulates the object to be protected against heat radiation over a specific range.
The synthetic resin offers the further advantage of being weather-resistant and water-repellant.
Also, this coating is incombustible.
Preferably, the above coating can be colored with appropriate masking, camouflage colors or be provided with a colored non-emitting film
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