Safety tire valve

Details Safety tire valve Safety tire valve

1993-11-03

1994-11-22

Rivell, John

Fluid handling

Inflatable article

With pressure-responsive pressure-control means

137227, 137233, 137557, 137559, 731468, 116 34R, F16K 1520, F16K 3700

Patent

active

053659678

ABSTRACT:
A tire pressure indicator which includes a valve stem over-pressure indicator and a valve stem cap under-pressure indicator. The valve stem includes an air porting scheme that releases over-inflation air for escape through a whistling reed configuration. The valve stem cap includes a top translucent panel for coaction with a diaphragm spring contained therebelow. Normal tire pressure distends the diaphragm spring to an upward convex attitude in contact with the underside of the translucent panel to project a visual indicator.

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