Valve for checking tire pressure
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 5, 1989
Grant Date -
N/A
app pub date -
Oct 27, 1988
filing date -
Oct 15, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A valve for checking tire pressure comprising a hollow cylinder, a sealing block, a plate, a spring and a flute. The hollow cylinder has a flange inwardly extending at intermediate portion thereof to form an opening and divide the hollow cylinder into upper and lower portions. The sealing block is disposed in the lower portion of the hollow cylinder and contacts with the flange to seal the opening. The sealing block is provided with a passage communicating both sides of the sealing block. The plate has a pin downwardly extending into the opening and contacting the sealing block and a seat formed on upper surface of the plate. The spring is disposed on the seat of the plate. The flute mounted on the hollow cylinder includes a base and a flute body disposed on the base. A passage is formed in the base which communicates the flute body with the upper portion of the cylinder. When the tire pressure is too low, the spring will force the sealing block moving downwardly to form a gap between the flange and the sealing block and push a stem of a tire nozzle moving downwardly, so that air contained in the tire leaks out to reach the flute and provide a sonic signal for notifying users.
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