Patent ID: 8322362

Claim:
A backup pneumatic water pressure device, comprising: a water tank connected between a water supply and plumbing lines providing water service to a building structure, the water service relying upon a primary water pressure at the water supply, the water tank being pressurized and having an internal air bladder; an air compressor connected to the air bladder, the air compressor being operated automatically when the primary water pressure is interrupted to pressurize the air bladder, the water pressure being controlled dynamically by automatically operating the air compressor when a water pressure within the tank is less than a preset lower pressure limit, the air compressor ceasing operation when the water pressure within the tank is greater than a preset upper pressure limit, and automatically relieving pressure from the air bladder when the primary water pressure is restored, thereby restoring water in the water tank; a power supply for the air compressor; and a check valve between the water supply and the water tank to maintain pressure in the water tank provided by operation of the air compressor when there is a loss of water pressure from the water supply.