Abstract

A fluid delivery system or method for the same may include features or steps for dispensing, via a nozzle, a first fluid from a first fluid storage tank of at least two fluid storage tanks. The fluid storage tanks may be separately fluidly coupled to a manifold via respective fluid supply lines. A fluid delivery line fluidly may couple the nozzle to the manifold. A residual first fluid may remain within the delivery line after the dispensing step. The system or method may further include features or steps for connecting the nozzle to a clearance tank. A clearance outlet line may fluidly couple the clearance tank to the manifold. The system or method may further include features or steps for purging the residual first fluid from the fluid delivery line into the clearance tank and delivering the residual first fluid from the clearance tank to the first fluid storage tank.

IPC Classes  ?

• B08B 9/027 - Cleaning the internal surfacesRemoval of blockages
• B08B 9/032 - Cleaning the internal surfacesRemoval of blockages by the mechanical action of a moving fluid, e.g. by flushing
• B67D 7/08 - Arrangements of devices for controlling, indicating, metering or registering quantity or price of liquid transferred
• B67D 7/78 - Arrangements of storage tanks, reservoirs or pipe-lines
• B67D 7/12 - Arrangements of devices for controlling, indicating, metering or registering quantity or price of liquid transferred operated by movement of delivery hose or nozzle or by devices associated therewith
• B67D 7/58 - Arrangements of pumps
• B67D 7/04 - Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring fuels, lubricants or mixed fuels and lubricants