Patent ID: 7114517
Filing Date: 2006-10-03
Classification: G01F,G05D,Y10T

Abstract:
1. A fluid delivery system, comprising: a reservoir having an inlet for receiving a gas to pressurize the reservoir and an outlet for dispensing fluid contained in the reservoir; a first flow control device connected to the reservoir inlet; a first pressure transmitter connected to the reservoir inlet, the first pressure transmitter providing an output signal; a second flow control device in fluid communication with the reservoir outlet to control fluid flow out of the reservoir; a second pressure transmitter connected to the reservoir outlet, the second pressure transmitter providing an output signal; a Coriolis mass flowmeter in fluid communication with the second flow control device, the Coriolis flowmeter having a flow-tube made of a high-purity plastic material, the Coriolis flowmeter providing an output signal; a controller receiving a setpoint signal, the controller receiving the output signals from the first and second pressure transmitters and the Coriolis flowmeter and providing control output signals to the first and second flow control devices to vary the pressure of the reservoir and the flow rate of fluid from the reservoir.