Patent ID: 7191796
Filing Date: 2007-03-20
Classification: B60C,F16K,Y10T

Abstract:
1. An air valve comprising: a standard cylindrical valve stem formed to define a bore passing from the interior of an air retaining device to the exterior of said air retaining device and comprising an inner surface along said bore; a circular partition mounted on said inner surface of said valve stem wherein said circular partition is formed to define a first and a second circular hole and wherein said circular partition is further formed to have an outer diameter equal to the diameter of said bore in said valve stem; a first cylindrical pipe defining a bore having a diameter equal to the diameter of said first hole and mounted on said circular partition so that said bore in said first pipe is aligned with said first hole in said circular partition; a second cylindrical pipe defining a bore having a diameter equal to the diameter of said second hole and mounted on said circular partition so that said bore in said first pipe is aligned with said first hole in said circular partition; a first cover demountably attached to said first cylindrical pipe so as to seal said first cylindrical pipe; and a second cover demountably attached to said second cylindrical pipe so as to seal said second cylindrical pipe.