摘要:
This present invention concerns the field of individual biological protection devices against harmful electromagnetic emissions, and more particularly a device providing biological protection against the electromagnetic waves emitted by a mobile telephone.This objective is met by a protective element (1) that is proof against electromagnetic waves, arranged so that, whenever so desired, the user is able to protect himself or herself from the electromagnetic waves emitted by the mobile telephone (2) during its use, with the protective element (1) reflecting these signals in the direction away from the user.Several embodiments are proposed, thus bringing the device within the reach of everyone.The effectiveness of this device has been confirmed by a scientific study which shows that attenuation of the power of the electromagnetic waves associated with the use of the mobile telephone (2) in the direction of the user exceeds 10 decibels.
摘要:
A device providing biological protection against the electromagnetic waves emitted by a mobile telephone. A protective element against electromagnetic waves, arranged so that the user is able to protect himself or herself from the electromagnetic waves emitted by the mobile telephone during use, with the protective element reflecting these signals away from the user.
摘要:
The present invention concerns the field of individual biological protection devices against emissions of electromagnetic pollution, more particularly a biological protection device against the electromagnetic waves emitted by a mobile telephone.The device includes a frame (3) and a screen (4) made at least in part from a highly-conducting metallic material, with the screen having dimensions that are sufficient to cover the internal perimeter of the frame (3), the screen (4) and the frame (3) forming a protective element (1) that is open and proof against the electromagnetic waves, when the screen is covering the frame.The mobile telephone (2) is held within the depth of the protective element so that the screen is located facing the ergonomic interface (21) of the mobile telephone with an electrically insulating space with a thickness of at least 2 mm between the metallic part of protective element and the mobile telephone.
摘要:
A height compensation device for a railway truck having at least two pairs of rail engaging support wheels. The height compensation device is secured at opposed ends of a truck bolster and compensates for car body height loss after the wheels are re-profiled. The compensation device comprises a bearing element having a top support surface on which the car body rests. A displaceable height adjustment plate having one or more shim sections of different thicknesses is provided with one of the sections being disposed between the bearing element and the truck bolster by lifting the car body off the bearing element whereby to dispose the top support surface of the bearing element at a predetermined desired height above the truck bolster to maintain the car body at a substantially constant height from track level after wheel profiling.