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US 2010/0300591 A1Published application
Self-inflating wheel
OwnerRichard M. Rheinhardtinventor
Life of this patent
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Abstract
A self-inflating wheel having a rim for mounting a tire to form an airtight chamber for retaining air at a predetermined first level of pressure, a reservoir for retaining air at a second level of pressure higher than the first level, a valve for feeding air into the reservoir from an external source and a valve connecting the reservoir and the chamber for feeding air to the chamber in response to the pressure therein being lower than the first level.
Claims13
A self-inflating wheel, comprising:
- a rim;
- a tire adapted to be mounted on the rim to form an enclosed tire chamber therewith for retaining air at a first level of pressure;
- a reservoir forming a reservoir chamber for retaining air at a second level of pressure higher than the first level;
- a first valve connected with the reservoir chamber for feeding air thereinto from an external source up to the second level of pressure;
- and
- a second valve responding to air pressure in the tire chamber being lower than the first level for feeding air from the reservoir chamber to the tire chamber to restore the pressure therein substantially to the first level.
3 more elements
Dependencies are inferred from the claim text.