Beverage preparation machines and methods for operating beverage preparation machines
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United States of America Patent
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Mar 10, 2015
Grant Date -
Mar 24, 2011
app pub date -
May 16, 2008
filing date -
May 18, 2007
priority date (Note) -
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Abstract
A method of operating a beverage preparation machine, the beverage preparation machine being of the type comprising a brewer comprising: a reservoir containing water; a delivery head for receiving in use a cartridge containing one or more beverage ingredients; a pump for pumping water from said reservoir to said delivery head; a primary heater for heating the water contained in said reservoir; a secondary heater in between the reservoir and the delivery head; a controller for controlling energization of the primary heater and the secondary heater; and wherein the controller operates to prevent energization of the primary heater simultaneous with energization of the secondary heater. An apparatus for carrying out the method is also disclosed and methods and apparatus utilizing first and second brewers.
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