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Device for sealing electromagnetic waves

  • US 5,072,070 A
  • Filed: 12/01/1989
  • Issued: 12/10/1991
  • Est. Priority Date: 12/01/1989
  • Status: Expired due to Fees
First Claim
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1. A resilient electromagnetic shielding device comprising:

  • a plurality of conductive wire coils canted along a centerline thereof;

    means for preloading said plurality of coils in a manner causing coil spacing along the circumference of adjoining coils to be less along a seal-load portion thereof than along other coil portions on the circumference of adjoining coils, said coil spacing along the seal-load portion being selected to limit the passage of electromagnetic energy with a wavelength greater than a selected value.

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