Title:
HIDDEN RECEIVER-SENDER DEVICE FOR PNEUMATICS TIRES
Document Type and Number:
WIPO Patent Application WO2004112294
Kind Code:
A3
Abstract:
A hidden receiver-sender device, wherein a transponder (T) is able to send and receive radio frequency signals with no losses, even in the presence of materials which may be potentially damaging to the transponder, the transponder being composed of a chip (1) and a coil (2). The transponder is doubly protected: first , by covering the transponder components with a plastic film (F); second, by placing the covered transponder inside a capsule (3) made of material transparent to electromagnetic waves and suitable for resisting against different material stresses, such as twisting, flexion, traction or mechanical vibrations, the capsule material preferably being a plastic which is not only tranparent to electomagnetic waves but also is relatively flexible.
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Inventors:
DE MACEDO MILTON FLAVIO (BR)
Application Number:
PCT/BR2004/000094
Publication Date:
June 30, 2005
Filing Date:
June 16, 2004
Export Citation:
Assignee:
TECHINVEST LTDA (BR)
DE MACEDO MILTON FLAVIO (BR)
DE MACEDO MILTON FLAVIO (BR)
International Classes:
B60C23/04; F16H3/42; G08B13/14; H04L; (IPC1-7): G08B13/14
Foreign References:
| US6147659A | 2000-11-14 | |||
| US6067016A | 2000-05-23 | |||
| US6097293A | 2000-08-01 | |||
| US5731957A | 1998-03-24 | |||
| US5920290A | 1999-07-06 |
Other References:
See also references of EP 1634257A4
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