US Patent 7966927 Standalone drink dispensing machine

A machine for preparing and dispensing drinks by extraction under pressure of a food substance contained in a capsule which can function in a standalone mode in order to deliver several drinks successively. The machine includes an extraction module for receiving a capsule, a heat insulated water reservoir for supplying the extraction module, a pump and an electrical power supply that includes a low voltage electrical accumulator configured to supply the pump. The reservoir has a heating device that includes an electrical element powered by the accumulator.