| 摘要 |
Apparatus for inflating a tire connected to a tire rim and indicating the pressure of a tire while the tire is on the rim includes an elongated body element for connection with the tire rim, an elongated valve element having indicia thereon slidably disposed within an elongated passageway within the elongated body element, a seal attached to the elongated valve element, and a spring for biasing the elongated valve element against movement toward an extended position. The elongated valve element is moveable to a fully retracted position within the elongated body element and allows pressurized air to flow between the elongated body element and the elongated valve element when the apparatus is used to fill a tire.
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