Tire valve stem
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United States of America Patent
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-
Jan 2, 1996
Grant Date -
N/A
app pub date -
Nov 23, 1994
filing date -
Nov 23, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention relates generally to a valve stem for a pneumatic tire and more specifically to a valve stem which is capable of allowing for the introduction of pulverulent matter into the tire directly through the valve while at the same time also being capable of filtering the air released from within the tire through the valve core to prevent pulverulent matter contained within the tire from entering the valve core seat assembly and the atmosphere. The present invention also prevents pulverulent matter which may be contained within a tire from being forced into the valve core over time through use of the tire and due to routine checking of tire air pressure. The invention is suited for use with any size wheel and tire assembly including those found on automobiles, light trucks, heavy duty over-the-road trucks, and heavy duty off-road trucks.
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