SYSTEM TO MONITOR CONDITIONS IN A FLUID-CONTAINING MEMBER AND METHOD TO MONITORING SAID CONDITIONS

摘要

Valve assembly including an inner valve (206) and an outer valve (301) that cooperate to control the fluid flow in fluid-containing member such as a vehicle tire. The outer valve cooperates with the inner valve to control the flow of fluid in and out of the fluid-containing member. The valve assembly includes an energy source (4) such as a battery between the two valves. During normal operation, the outer valve is closed and prevents the flow of fluid out of the fluid-containing member. If the outer valve is opened, the inner valve is also open to permit the fluid flow in the fluid-containing member. If the energy source is removed, the inner valve is closed and prevents fluid flow out of the fluid-containing member. The energy source can be conveniently replaced without deflating or dismantling the fluid-containing member. The valve assembly and energy source are typically part of an electric circuit that can be mounted on a support plate that is attached to the base of the inner valve.