Tire monitoring device air breathing tube
First Claim
1. A tire monitoring device, comprising:
- a housing mounted within a cavity of a tire/wheel assembly;
a sensor positioned within the housing adapted to sense a condition within the cavity of the tire/wheel assembly via an open passage created in the housing;
a hollow linearly extending breathing tube connected to the housing having an internal bore aligned with the open passage, the breathing tube including an opening at a free end, the opening sized to prevent entrance of a liquid present in the cavity from entering the opening.
1 Assignment
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Accused Products
Abstract
A tire monitoring device includes a housing mounted within a cavity of a tire/wheel assembly. A sensor within the housing senses a condition within the cavity via an open passage in the housing. A hollow first tube extends away from the housing coaxial to an axis of the open passage. The first tube has an internal bore aligned with the open passage, and includes: a first tubular portion having a first cross sectional width; and a second tubular portion having a second cross sectional width smaller than the first cross sectional width. The second tubular portion further has a free end opening positioned in the cavity above a level of a liquid present in the cavity when the tire monitoring device is positioned at a lowest point in the cavity. The opening has a cross sectional width sized to prevent entrance of the liquid past the opening.
19 Citations
26 Claims
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1. A tire monitoring device, comprising:
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a housing mounted within a cavity of a tire/wheel assembly; a sensor positioned within the housing adapted to sense a condition within the cavity of the tire/wheel assembly via an open passage created in the housing; a hollow linearly extending breathing tube connected to the housing having an internal bore aligned with the open passage, the breathing tube including an opening at a free end, the opening sized to prevent entrance of a liquid present in the cavity from entering the opening. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A tire monitoring device, comprising:
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a housing mounted within a cavity of a tire/wheel assembly; a sensor positioned within the housing adapted to sense a condition within the cavity via an open passage created in the housing; a hollow first tube extending away from the housing coaxial to an axis of the open passage, the first tube having an internal bore aligned with the open passage, the first tube including; a first tubular portion having a first cross sectional width; and a second tubular portion having a second cross sectional width smaller than the first cross sectional width, the second tubular portion further having an opening at a free end, the opening positioned in the cavity above a level of a liquid present in the cavity when the tire monitoring device is positioned at a lowest point in the cavity, and the opening having a cross sectional width sized to prevent entrance of the liquid past the opening. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A tire monitoring system, comprising:
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a tire/wheel assembly having a liquid occupying a portion of an internal cavity of the tire/wheel assembly, the liquid pooling in the internal cavity when the tire/wheel assembly is in a non-rotating condition; a tire monitoring device positioned in the internal cavity, including; a housing mounted to a tire wall; a hollow breathing tube connected to the housing and aligned with the open passage; and a hollow linearly extending breathing tube connected to the housing having an internal bore aligned with the open passage, the breathing tube including an opening at a free end, the opening sized to prevent entrance of a liquid present in the cavity from entering the opening, a total length of the breathing tube predetermined to position the opening of the breathing tube freely away from a surface of the liquid created by pooling of the liquid when the tire/wheel assembly is stationary and the housing is positioned at a lowest elevation of the internal cavity. - View Dependent Claims (24, 25, 26)
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Specification