Fluid handling – Inflatable article – Stem attached relief valve
Patent
1997-04-28
1998-10-13
Rivell, John
Fluid handling
Inflatable article
Stem attached relief valve
137539, 1376142, 2511494, 206302, 206443, F16K 1520, B65D 8520
Patent
active
058197800
ABSTRACT:
A tire device for controlled vehicle tire deflation including, a hollow rod having a top end, a bottom end, an exterior surface being knurled, and a hole therethrough having an upper portion adjacent the top end and a lower portion adjacent the bottom end capable of engaging a tire valve; a hollow set screw having a rounded head with a hex opening therethrough and an elongated body positionable in the upper portion of the hole of the rod; a valve depressor disposed inside the rod having an interior end with three support bars extending therefrom spaced away from the lower portion of the hole and an exterior end spaced within the lower portion of the hole capable of engaging a needle valve of a tire valve assembly; and a valve positioned within the rod having a spring with an upper limit being in communication with the set screw and a lower limit, a resilient supporting structure with a seat end and a base end being in communication with the support bars of the valve depressor, and a sphere therebetween being in communication with the lower limit of the spring and the seat of the supporting structure.
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