Patent ID: 7834749
Filing Date: 2010-11-16
Classification: B60C,G01L

Abstract:
1. A tire pressure monitoring system (TPMS) sensor assembly comprising: a housing and a pressure sensor mounted in the housing; and an antenna connected to the sensor and extending exteriorly of the housing for effecting wireless communication between the sensor and a remote module, the antenna being moveable between a folded position in which it extends around at least a part of the housing so as to lie substantially in the plane of the housing and an erect position in which it upstands from the housing so as, in use, to extend into the inflation area formed between a wheel and tire, the antenna being biased towards its erect position, and further including releasable restraining means for restraining the antenna in its folded position, wherein said restraining means releases automatically after the tire has been fitted at least to a point at which there is no further danger of damage to the sensor.