Radiation shield for cellular telephones

• US 20020137473A1
• Filed: 03/12/2001
• Published: 09/26/2002
• Est. Priority Date: 03/12/2001
• Status: Abandoned Application

• Current Assignee: Stock Value 1, Inc.
• Original Assignee: Stock Value 1, Inc.
• Inventors: Jenkins, Deborah L.
• Application Number:
  US09/803,041
• Publication Number:
  US 20020137473A1
• Time in Patent Office: Days
• US Class Current: 455/575.5
• CPC Class Codes: H01Q 1/245 with means for shaping the antenna pattern, e.g. in order to protect user against rf exposure
• CPC Class Codes: H01Q 17/001 for modifying the directional characteristic of an aerial
• CPC Class Codes: H04B 1/3833 Hand-held transceivers

Abstract

A shield apparatus for placement over speaker openings of a cellular or cordless telephone to obstruct passage of harmful electromagnetic signal radiation from the telephone to the user ear includes a first glue ring for bonding the apparatus over the speaker openings of a telephone; a first mesh layer adhesively engaged by the first glue ring for absorbing signal radiation while permitting passage of sound waves; a second glue ring adhesively engaging the first mesh layer; and a second mesh layer engaged by the second glue ring for absorbing residual signal radiation penetrating the first mesh layer. The apparatus preferably still additionally includes a metal frame ring bonded to the second mesh layer and extending along the periphery of the second mesh layer for absorbing radiation directed laterally toward the user ear.

Claims

1. A shielded telephone apparatus, comprising:

a telephone which is one of a cellular telephone and a cordless telephone having a speaker opening;

a first mesh layer for absorbing signal radiation while permitting passage of sound waves;

first securing means securing said first mesh layer over said speaker opening;

a second mesh layer for absorbing residual signal radiation passing through said first mesh layer while permitting passage of sound waves;

and second securing means securing said second mesh layer over said first mesh layer.

2. A shield apparatus for placement over speaker openings of a cellular or cordless telephone to obstruct passage of harmful electromagnetic signal radiation from the telephone to the user ear, comprising:

a first glue ring for bonding the apparatus over the speaker openings of a telephone;

a first mesh layer adhesively engaged by said first glue ring for absorbing signal radiation while permitting passage of sound waves;

a second glue ring adhesively engaging said first mesh layer;

and a second mesh layer engaged by said second glue ring for absorbing residual signal radiation penetrating said first mesh layer while permitting passage of sound waves.

3. The shield apparatus of claim 2, additionally comprising a flexible backing sheet covering removably engaged by said first glue ring, for preventing contact with said first glue ring until the apparatus is to be installed on a telephone.

4. The shield apparatus of claim 2, additionally comprising a metal frame ring bonded to said second mesh layer and extending along the periphery of said second mesh layer for absorbing radiation directed laterally toward the user ear.

5. The shield apparatus of claim 4, wherein said frame ring has an exposed face, additionally comprising a bead of solidified gelatin extending along the exposed face of said frame ring.

6. The shield apparatus of claim 2, wherein said first mesh layer and said second mesh layer are formed of a fabric made from polycarbon metallic fiber.

7. The shield apparatus of claim 2, wherein said first and second glue rings and said first and second mesh layers are sized and dimensioned to have a matching elliptical perimeter shape.