US 5,335,366 A · Radiation shielding apparatus for a radio transmitting device

Abstract

A radiation shielding apparatus for a radio transmitting device, such as a cellular phone. A radiation shield is disposed between a radiation component and a user to prevent unwanted exposure of the user to emanating radiation from the radiation emanating component. The cellular telephone radio transmitting device may be a hand-held cellular telephone, and the radiation emanating component may be an internal or external antenna or any other electromagnetic radiation source, such as a transmitter. The radiation shield can be retrofitted to an existing cellular telephone, or may be designed specific for different models of cellular phones. The radiation shield can absorb, block and/or reflect electromagnetic wave radiation to shield the user of such cellular telephones from unwanted and possibly harmful exposure to electromagnetic wave radiation.

Claims6

Dependent claims

A radiation shielding apparatus in combination with a cellular telephone radio transmitting device having a radiation emanating external antenna for transmission of electromagnetic radiation, said radiation shielding apparatus comprising:

shielding means comprising an elongated member having a closed-curve cross sectional shape so as to wrap completely around the antenna of the cellular telephone device, a side of the elongated member closest to a user of the cellular telephone device comprising a first material which shields the user from radiation emanating from the antenna toward the user and an other side of the elongated member comprising a second material for allowing the radiation emanating from the antenna to pass, and fixing means for disposing, fixing and maintaining the elongated member at an operable position between the antenna and the user of the cellular telephone device so that at the operable position the elongated member is effective to prevent exposure of the user to the radiation during all transmissions of electromagnetic radiation from the radiation emanating antenna.

Dependencies are inferred from the claim text.

Radiation shielding apparatus for a radio transmitting device

Life of this patent

Radiation shielding apparatus for a radio transmitting device

Life of this patent

Abstract

Claims6