Patent ID: 8220660
Filing Date: 2012-07-17
Classification: G05D,Y10T

Abstract:
1. A system for supplying at least two fluids in proportioned quantities, the system comprising: a first intake passage configured to be in flow communication with a source of a first fluid; a second intake passage configured to be in flow communication with a source of a second fluid; a fluid transfer device in flow communication with the first intake passage and the second intake passage; and a pump in flow communication with the first intake passage, the pump being configured to transfer the first fluid via the first intake passage to the fluid transfer device, wherein the fluid transfer device comprises a first chamber and a second chamber, and the first intake passage is in flow communication with the first chamber and the second intake passage is in flow communication with the second chamber, wherein operation of the pump is configured to supply a quantity of the first fluid to the first chamber such that a quantity of the second fluid is expelled from the second chamber, and when operation of the pump is ceased, a quantity of the second fluid enters the second chamber and a quantity of the first fluid is expelled from the first chamber.