Device for supplying pressurized air through the hub to the tire of a motor vehicle wheel
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United States of America Patent
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Dec 20, 2005
Grant Date -
Mar 10, 2005
app pub date -
Nov 20, 2003
filing date -
Mar 6, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The device (B) comprises a first non-rotatable ring (11) to be mounted adjacent to a non-rotatable race (1) of a bearing unit (A), and a second rotatable ring (12) to be coupled fast for rotation with a rotatable race (2,3) of the bearing unit (A). A first air passage (13, 113) is formed through the first non-rotatable ring (11) and a second air passage (14) is formed through the second rotatable ring (12). A sealing device (15, 16) interposed between the first (11) and the second (12) ring, defines an intermediate chamber (17) communicating with the first (13, 113) and the second (14) air passages.
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