Importance

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Abstract

A fluid or semi-fluid dispensing system comprises a fluid dispenser for outputting a fluid or semi-fluid, a fluid source, a dispensing line directing the fluid or semi-fluid from the fluid source to the fluid dispenser, a compressed air source, an air valve selectively controlling a flow of air from the compressed air source into the dispensing line, a pump selectively pumping the fluid or semi-fluid from the fluid source into the dispensing line, and a controller for alternatingly activating (a) the pump to pump the fluid or semi-fluid from the fluid source into the dispensing line and (b) the air valve to force the fluid or semi-fluid from the dispensing line via the fluid dispenser.

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First Claim