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US 6,785,512 B1Granted
Radio frequency radiation-free environments
OwnerAl Messano, Alan Rossinventors
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OwnerAl Messano, Alan Rossinventors
Estimating the term…
The invention relates to a method of rendering telecommunication devices ineffective by creating a substantially radio frequency radiation-free environment. An interference generating pattern is provided adjacent the environment in a position between the environment and a source of radio frequency radiation signals so as to substantially reduce, or interfere with such signals thus preventing typical operation of the telecommunications devices therein. Preferably, the interference generating pattern is provided by applying silicon carbide as a coating or as part of a building material onto a structure to reduce attenuation by at least 20 to 50 decibels. Other aspects of the invention include the building materials that have the interference generating pattern associated therewith and the substantially radio frequency radiation-free environments that are created according to the methods disclosed herein.
A method of rendering telecommunication devices ineffective, which comprises creating a substantially radio frequency radiation-free environment by providing a non-conductive interference generating pattern that is or includes a diffraction grating adjacent the environment in a position between the environment and a source of radio frequency radiation signals so as to substantially reduce, or interfere with such signals by attenuation of signal wavelength thus preventing typical operation of the telecommunications devices.
A substantially radio frequency radiation-free environment that includes a non-conductive interference generating pattern that is or includes a diffraction grating adjacent thereto in a position between the environment and a source of radio frequency radiation signals so as to substantially reduce or interfere with such signals by attenuation of signal wavelength to prevent typical operation of telecommunication devices therein.
A radio frequency reducing building material that includes a non-conductive interference generating pattern that is or includes a diffraction grating to substantially reduce or interfere with radio frequency signals by attenuation of signal wavelength to prevent typical operation of telecommunication devices when the radio frequency reducing building material is positioned between a source of such signals and telecommunications devices.
Dependencies are inferred from the claim text.