IP Library Granted Patent US 7,898,487
Granted Patent B2
US 7,898,487 · App. 12/133,484 · Granted Mar 1, 2011

Undercarriage fitted with a communication device between a wheel and the undercarriage

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Quick Facts
Patent No.
US 7,898,487
App. No.
12/133,484
Granted
Mar 1, 2011
Kind
B2
Abstract

The invention relates to an aircraft undercarriage including at least one axle having at least one wheel mounted to rotate thereon, the undercarriage including a communication device for connecting a sensor mounted on a rim of the wheel to stationary processor means mounted on the aircraft. According to the invention, the communication device comprises firstly an antenna secured to the sensor and thus rotating together with the wheel, and secondly a stationary antenna extending at the end of the axle and connected to the processor means, the two antennas being in radio communication through a cover of non-conductive material secured to the wheel and covering the end of the axle.

Claims (4)

1. An aircraft undercarriage including at least one axle having at least one wheel mounted to rotate thereon, the undercarriage including a communication device for connecting a sensor mounted on a rim of the wheel to stationary processor means mounted on the aircraft, wherein the communication device comprises a first antenna secured to the sensor and thus rotating together with the wheel, and a stationary second antenna extending at the end of the axle and connected to the processor means, the first and second antennas being in direct radio communication through a cover of non-conductive material secured to the wheel and covering the end of the axle.

2. An undercarriage according to claim 1 wherein the two antennas are in direct communication, without any intermediate antenna.

3. An aircraft undercarriage including at least one axle having at least one wheel mounted to rotate thereon, the undercarriage including a communication device for connecting a sensor mounted on a rim of the wheel to stationary processor means mounted on the aircraft, wherein the communication device comprises a first antenna secured to the sensor and thus rotating together with the wheel, and a stationary second antenna extending at the end of the axle and connected to the processor means, the first and second antennas being in radio communication through a cover of non-conductive material secured to the wheel and covering the end of the axle, in which the stationary antenna comprises a plurality of printed flat radiating elements disposed circumferentially in such a manner that the antenna of the sensor is continuously in radio connection with at least one of the radiating elements, regardless of the angular position of the wheel.

4. An undercarriage according to claim 3 wherein two antennas are in direct communication, without any intermediate antenna.

Assignments (6)
CHANGE OF NAME Recorded May 6, 2018
From: SAGEM DÉFENSE SÉCURITÉ
To: SAFRAN ELECTRONICS & DEFENSE
Reel/Frame 046082/0606 →
LICENSE Recorded Apr 12, 2011
From: SAGEM DEFENSE SECURITE
To: MESSIER-BUGATTI
Reel/Frame 026116/0435 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 28, 2010
From: MESSIER-BUGATTI
To: SAGEM DEFENSE SECURITE
Reel/Frame 024300/0876 →
LICENSE Recorded Apr 28, 2010
From: SAGEM DEFENSE SECURITE
To: MESSIER-BUGATTI
Reel/Frame 024305/0070 →
LICENSE Recorded Apr 28, 2010
From: MESSIER-BUGATTI
To: SAGEM DEFENSE SECURITE
Reel/Frame 024305/0090 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 14, 2008
From: PRADIER, JEAN-CLAIR; LAVAUD, THOMAS
To: MESSIER-BUGATTI
Reel/Frame 021390/0074 →